Potassium Sulfide

H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

H400: Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]

P260, P264, P273, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P391, P405, and P501 (click each P-code to see the statement)

H251 (44.3%): Self-heating; may catch fire [Danger Self-heating substances and mixtures]

H314 (100%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

H400 (100%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]

P235, P260, P264, P273, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P391, P405, P407, P410, P413, P420, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 88 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

H251: Self-heating; may catch fire [Danger Self-heating substances and mixtures]

H300: Fatal if swallowed [Danger Acute toxicity, oral]

H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]

H371: May cause damage to organs [Warning Specific target organ toxicity, single exposure]

P235, P260, P264, P264+P265, P270, P280, P301+P316, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P308+P316, P316, P317, P321, P330, P363, P405, P407, P410, P413, P420, and P501 (click each P-code to see the statement)

H301: Toxic if swallowed [Danger Acute toxicity, oral]

H312: Harmful in contact with skin [Warning Acute toxicity, dermal]

P260, P264, P270, P273, P280, P301+P316, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P330, P362+P364, P363, P391, P405, and P501 (click each P-code to see the statement)

Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.

Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . Wear protective gloves when administering first aid.

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

Rinse mouth. Do NOT induce vomiting. Refer for medical attention .

Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]:

Refer to the "General First Aid" section. (ERG, 2024)

Excerpt from ERG Guide 153 [Substances - Toxic and/or Corrosive (Combustible)]:

Refer to the "General First Aid" section. Specific First Aid: For corrosives, in case of contact, immediately flush skin or eyes with running water for at least 30 minutes. Additional flushing may be required. Removal of solidified molten material from skin requires medical assistance. (ERG, 2024)

General First Aid:

· Call 911 or emergency medical service.

· Ensure that medical personnel are aware of the material(s) involved, take precautions to protect themselves and avoid contamination.

· Move victim to fresh air if it can be done safely.

· Administer oxygen if breathing is difficult.

· If victim is not breathing:

-- DO NOT perform mouth-to-mouth resuscitation; the victim may have ingested or inhaled the substance.

-- If equipped and pulse detected, wash face and mouth, then give artificial respiration using a proper respiratory medical device (bag-valve mask, pocket mask equipped with a one-way valve or other device).

-- If no pulse detected or no respiratory medical device available, provide continuous compressions. Conduct a pulse check every two minutes or monitor for any signs of spontaneous respirations.

· Remove and isolate contaminated clothing and shoes.

· For minor skin contact, avoid spreading material on unaffected skin.

· In case of contact with substance, remove immediately by flushing skin or eyes with running water for at least 20 minutes.

· For severe burns, immediate medical attention is required.

· Effects of exposure (inhalation, ingestion, or skin contact) to substance may be delayed.

· Keep victim calm and warm.

· Keep victim under observation.

· For further assistance, contact your local Poison Control Center.

· Note: Basic Life Support (BLS) and Advanced Life Support (ALS) should be done by trained professionals.

Specific First Aid:

· For corrosives, in case of contact, immediately flush skin or eyes with running water for at least 30 minutes. Additional flushing may be required.

· Removal of solidified molten material from skin requires medical assistance.

In Canada, an Emergency Response Assistance Plan (ERAP) may be required for this product. Please consult the shipping paper and/or the "ERAP" section.

Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]:

DO NOT USE WATER, CO2 OR FOAM ON MATERIAL ITSELF. Some of these materials may react violently with water. CAUTION: For Xanthates, UN3342 and for Dithionite (Hydrosulfite/Hydrosulphite) UN1384, UN1923 and UN1929, USE FLOODING AMOUNTS OF WATER for SMALL AND LARGE fires to stop the reaction. Smothering will not work for these materials, they do not need air to burn.

SMALL FIRE: Dry chemical, soda ash, lime or DRY sand, EXCEPT for UN1384, UN1923, UN1929 and UN3342.

LARGE FIRE: DRY sand, dry chemical, soda ash or lime EXCEPT for UN1384, UN1923, UN1929 and UN3342, or withdraw from area and let fire burn. CAUTION: UN3342 when flooded with water will continue to evolve flammable Carbon disulfide/Carbon disulphide vapors. If it can be done safely, move undamaged containers away from the area around the fire.

FIRE INVOLVING TANKS, RAIL TANK CARS OR HIGHWAY TANKS: Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. Do not get water inside containers or in contact with substance. Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks in direct contact with flames. (ERG, 2024)

Excerpt from ERG Guide 153 [Substances - Toxic and/or Corrosive (Combustible)]:

SMALL FIRE: Dry chemical, CO2 or water spray.

LARGE FIRE: Dry chemical, CO2, alcohol-resistant foam or water spray. If it can be done safely, move undamaged containers away from the area around the fire. Dike runoff from fire control for later disposal.

FIRE INVOLVING TANKS, RAIL TANK CARS OR HIGHWAY TANKS: Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. Do not get water inside containers. Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks in direct contact with flames. (ERG, 2024)

Use water in large amounts, water spray. In case of fire: keep drums, etc., cool by spraying with water.

Extinguish fire using agent suitable for type of surrounding fire. Material itself does not burn or burns with difficulty. Use water in flooding quantities as fog. Use "alcohol" foam, dry chemical, or carbon dioxide. Keep run-off water out of sewers and water sources.

Use flooding quantities of water as spray. Approach fire from upwind to avoid hazardous vapors & toxic decomposition products.

· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.

· Keep unauthorized personnel away.

· Stay upwind, uphill and/or upstream.

· Ventilate closed spaces before entering, but only if properly trained and equipped.

· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area.

· Do not touch damaged containers or spilled material unless wearing appropriate protective clothing.

· Stop leak if you can do it without risk.

· Prevent entry into waterways, sewers, basements or confined areas.

· Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers.

· DO NOT GET WATER INSIDE CONTAINERS.

· Do not touch or walk through spilled material.

Small Spill

CAUTION: For spills of Xanthates, UN3342 and for Dithionite (Hydrosulfite/Hydrosulphite), UN1384, UN1923 and UN1929, dissolve in 5 parts water and collect for proper disposal.

CAUTION: UN3342 when flooded with water will continue to evolve flammable Carbon disulfide/Carbon disulphide vapors.

· Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain.

· Use clean, non-sparking tools to collect material and place it into loosely covered plastic containers for later disposal.

Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]:

IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.

SPILL: Increase the immediate precautionary measure distance, in the downwind direction, as necessary.

FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2024)

Excerpt from ERG Guide 153 [Substances - Toxic and/or Corrosive (Combustible)]:

Immediate precautionary measure

· Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.

· For highlighted materials: see Table 1 - Initial Isolation and Protective Action Distances.

· For non-highlighted materials: increase the immediate precautionary measure distance, in the downwind direction, as necessary.

· If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions.

Personal protection: chemical protection suit including self-contained breathing apparatus. Do NOT wash away into sewer. Sweep spilled substance into covered containers.

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.

Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]:

ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. Do not touch or walk through spilled material. Stop leak if you can do it without risk.

SMALL SPILL: CAUTION: For spills of Xanthates, UN3342 and for Dithionite (Hydrosulfite/Hydrosulphite), UN1384, UN1923 and UN1929, dissolve in 5 parts water and collect for proper disposal. CAUTION: UN3342 when flooded with water will continue to evolve flammable Carbon disulfide/Carbon disulphide vapors. Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain. Use clean, non-sparking tools to collect material and place it into loosely covered plastic containers for later disposal. Prevent entry into waterways, sewers, basements or confined areas. (ERG, 2024)

Excerpt from ERG Guide 153 [Substances - Toxic and/or Corrosive (Combustible)]:

ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS. (ERG, 2024)

Fireproof. Separated from strong oxidants and strong acids. Dry.

Store in a cool, dry, well-ventilated location. Separate from acids, oxidizing materials, halogens.

· Wear positive pressure self-contained breathing apparatus (SCBA).

· Wear chemical protective clothing that is specifically recommended by the manufacturer when there is NO RISK OF FIRE.

· Structural firefighters' protective clothing provides thermal protection but only limited chemical protection.

Small Fire

· Dry chemical, CO2 or water spray.

Large Fire

· Dry chemical, CO2, alcohol-resistant foam or water spray.

· If it can be done safely, move undamaged containers away from the area around the fire.

· Dike runoff from fire control for later disposal.

Fire Involving Tanks, Rail Tank Cars or Highway Tanks

· Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles.

· Do not get water inside containers.

· Cool containers with flooding quantities of water until well after fire is out.

· Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank.

· ALWAYS stay away from tanks in direct contact with flames.

· DO NOT USE WATER, CO2 OR FOAM ON MATERIAL ITSELF.

· Some of these materials may react violently with water.

CAUTION: For Xanthates, UN3342 and for Dithionite (Hydrosulfite/Hydrosulphite) UN1384, UN1923 and UN1929, USE FLOODING AMOUNTS OF WATER for SMALL AND LARGE fires to stop the reaction. Smothering will not work for these materials, they do not need air to burn.

· Dry chemical, soda ash, lime or DRY sand, EXCEPT for UN1384, UN1923, UN1929 and UN3342.

· DRY sand, dry chemical, soda ash or lime EXCEPT for UN1384, UN1923, UN1929 and UN3342, or withdraw from area and let fire burn.

CAUTION: UN3342 when flooded with water will continue to evolve flammable Carbon disulfide/Carbon disulphide vapors.

· Do not get water inside containers or in contact with substance.

Evaporation at 20 °C is negligible; a harmful concentration of airborne particles can, however, be reached quickly.

The substance is corrosive to the eyes, skin and respiratory tract. Inhalation may cause lung oedema. Exposure at high levels could cause death. The effects may be delayed. Medical observation is indicated.

Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]:

Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer when there is NO RISK OF FIRE. Structural firefighters' protective clothing provides thermal protection but only limited chemical protection. (ERG, 2024)

Excerpt from ERG Guide 153 [Substances - Toxic and/or Corrosive (Combustible)]:

Wear appropriate chemical protective gloves, boots and goggles.

Wear positive pressure self-contained breathing apparatus when fighting fires involving this material. /anhydrous sodium sulfide/

NO open flames, NO sparks and NO smoking. Do NOT expose to friction or shock. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust.

PREVENT DISPERSION OF DUST! AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!

Use local exhaust or breathing protection.

Protective gloves. Protective clothing.

Wear safety goggles or eye protection in combination with breathing protection.

Do not eat, drink, or smoke during work.

Potassium sulfide, anhydrous appears as a yellow-red to red crystalline mass or fused solid with an odor of rotten eggs.

Potassium sulfide, hydrated, with not less than 30% water of crystallization appears as a red crystalline solid. Denser than water. Contact may severely irritate skin, eyes and mucous membranes. May be toxic by ingestion.

White very hygroscopic solid; Discolored by air; [Merck Index] Red or yellow-red deliquescent solid; [Hawley] White to yellow powder with an odor of rotten eggs; [Strem MSDS]

HYGROSCOPIC WHITE CRYSTALS WITH CHARACTERISTIC ODOUR. TURNS RED OR BROWN ON EXPOSURE TO AIR.

WHITE CUBIC CRYSTALS OR FUSED PLATES

RED OR YELLOW-RED CRYSTALLINE MASS OR FUSED SOLID

FREELY SOL IN WATER

SOL IN ALCOHOL, GLYCERINE; INSOL IN ETHER

Soluble in ethanol, insoluble in ether.

Solubility in water: very good

Density = 1.74 g/cu cm

Relative density (water = 1): 1.8

DISCOLORS IN AIR; UNSTABLE.

UNSTABLE; MAY EXPLODE ON PERCUSSION OR RAPID HEATING.

Discolors upon exposure to light & air (yellow to yellowish red). /POTASSIUM SULFIDE PENTAHYDRATE/

When heated to decomposition it emits very toxic fumes of K2O and sulfoxides.

AQ SOL ARE STRONGLY ALKALINE

Very hygroscopic. Discolors on exposure to air. Unstable.

Colorless rhombs. Odor of hydrogen sulfide. Discolors upon exposure to light and air (yellow to yellowish red). mp 60 °C. Freely soluble in water, alcohol, glycerol. Insoluble in ether. Densities of aqueous solutions at 25 °C (calculated as % K2S.5H2O): 1.82%: 1.009; 10.90%: 1.049; 21.80%: 1.100; 29.07%: 1.136; 39.97%: 1.192; 50.88%: 1.250; 81.77%: 1.432. Aqueous solutions are caustic and prone to decomposition. /PENTAHYDRATE/

Other Classes -> Sulfur Compounds

Corrosives

Depilatory

This material reacts with water to generate the highly toxic and flammable gas hydrogen sulfide, which may be ignited by the heat of reaction. Finely divided material may be pyrophoric in air. (NFPA, 2010) See the chemical datasheet for Hydrogen Sulfide for more information.

Combustible solid. This material may react with water to generate the highly toxic and flammable gas hydrogen sulfide during a fire. (NFPA, 2010) See the chemical datasheet for Hydrogen Sulfide for more information.

Sulfides, Inorganic

Water and Aqueous Solutions

Strong Reducing Agent

Pyrophoric

POTASSIUM SULFIDE is a reducing agent. So readily oxidized as to be pyrophoric in air [Bretherick 1979 p. 120]. It is incompatible with chloroform and nitrogen oxide.

A reducing agent. So readily oxidized as to be pyrophoric in air [Bretherick 1979 p. 120]. It is incompatible with chloroform and nitrogen oxide.

Reacts with water to form KOH and KSH.

Fire conditions may produce hydrogen sulfide.

The substance can be absorbed into the body by inhalation and by ingestion.

Sore throat. Cough. Burning sensation. Shortness of breath. Headache. Dizziness. Nausea. Symptoms may be delayed.

Pain. Blisters. Skin burns.

Pain. Redness. Severe deep burns.

Burning sensation. Sore throat. Abdominal cramps. Nausea. Diarrhoea. Vomiting. See Inhalation.

Dermatotoxin - Skin burns.

Toxic Pneumonitis - Inflammation of the lungs induced by inhalation of metal fumes or toxic gases and vapors.

For advanced treatment: Consider orotracheal or nasotracheal intubation for airway control in the patient who is unconscious or in respiratory arrest. Positive-pressure ventilation techniques with a bag-valve-mask device may be beneficial. Monitor cardiac rhythm and treat arrhythmias if necessary ... . Start an IV with D5W TKO /SRP: To keep open, "minimal flow rate"/. Use lactated Ringer's if signs of hypovolemia are present. Watch for signs of fluid overload. Consider drug therapy for pulmonary edema ... . For hypotension with signs of hypovolemia, administer fluid cautiously. Watch for signs of pulmonary edema. Consider vasopressors to treat hypotension without signs of hypovolemia ... . Treat seizures with diazepam (Valium) ... . In severe cases use amyl nitrite and sodium nitrite ... as described for cyanide poisoning; omit the sodium thiosulfate injection. Early administration will be the most effective. DIRECT PHYSICIAN ORDER ONLY ... . Use proparacaine hydrochloride to assist eye irrigation ... . For basic treatment: Establish a patent airway. Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if necessary. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary ... . Monitor for shock and treat if necessary ... . Anticipate seizures and treat if necessary ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with normal saline during transport ... . Treat with rapid rewarming techniques ... if frostbite occurs. /Hydrogen sulfide and related compounds/

IF FREE GASTRIC ACIDITY IS HIGH, THE INGESTION OF.../SULFIDE/ SALTS MAY RESULT IN THEIR DECOMPOSITION TO HYDROGEN SULFIDE IN THE STOMACH, WITH SUBSEQUENT SYSTEMIC POISONING. /SULFIDE SALTS/

SEE HYDROGEN SULFIDE. SYMPTOMATOLOGY: A. LOW TO MODERATELY HIGH VAPOR CONCN. 1. IRRITANT ACTIONS. EYES: PAINFUL CONJUNCTIVITIS, PHOTOPHOBIA, LACRIMATION, & CORNEAL OPACITY. RESPIRATORY TRACT: RHINITIS WITH ANOSMIA, TRACHEOBRONCHITIS, WITH PAIN & COUGH, PULMONARY EDEMA WITH DYSPNEA, SOMETIMES LATE BRONCHOPNEUMONIA. SKIN: DIRECT CONTACT (AS A SOLUTION) MAY PRODUCE ERYTHEMA & PAIN. 2. GASTROINTESTINAL EFFECTS: PROFUSE SALIVATION, NAUSEA, VOMITING, DIARRHEA. 3. CENTRAL NERVOUS EFFECTS: GIDDINESS, HEADACHE, VERTIGO, AMNESIA, CONFUSION, & UNCONSCIOUSNESS. 4. MISCELLANEOUS: TACHYPNEA, PALPITATIONS, TACHYCARDIA, ARRHYTHMIA, SWEATING, WEAKNESS, & MUSCLE CRAMPS. /HYDROGEN SULFIDE/

SEE HYDROGEN SULFIDE. SYMPTOMATOLOGY: B. VERY HIGH VAPOR CONCN. 1. SUDDEN COLLAPSE & UNCONSCIOUSNESS, WITH OR WITHOUT A WARNING CRY. 2. DEATH FROM PROMPT RESP PARALYSIS, USUALLY WITH A TERMINAL ASPHYXIAL CONVULSION. 3. AFTER SUBLETHAL EXPOSURES COMA MAY DISPAPPEAR PROMPTLY, BUT FULL RECOVERY IS USUALLY SLOW; PATIENT MAY HAVE A RESIDUAL COUGH, CARDIAC DILATATION, SLOW PULSE, PERIPHERAL.../SRP: NEUROPATHY/, ALBUMINURIA, & SOME DEGREE OF AMNESIA OR OF /CNS/ DISTURBANCE. RECOVERY IS EVENTUALLY COMPLETE IN MOST NONFATAL CASES. /HYDROGEN SULFIDE/

AQ SOLN ARE VERY CAUSTIC...

PRETREATMENT WITH SODIUM NITRITE INCREASED THE ACUTE IP LD50 OF SODIUM SULFIDE 2.5 TIMES IN MICE. THE THERAPEUTIC EFFICACY OF NITRITE IN ACUTE SULFIDE POISONINGS IS CLEARLY SUPERIOR TO THAT OF OXYGEN, WHICH IS THE MORE WIDELY RECOMMENDED ANTIDOTE.

The substance is harmful to aquatic organisms.

The substance is harmful to aquatic organisms.

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

/GUIDE 135: SUBSTANCES - SPONTANEOUSLY COMBUSTIBLE/ Fire or Explosion: Flammable/combustible material. May ignite on contact with moist air or moisture. May burn rapidly with flare-burning effect. Some react vigorously or explosively on contact with water. Some may decompose explosively when heated or involved in a fire. May re-ignite after fire is extinguished. Runoff may create fire or explosion hazard. Containers may explode when heated. /Potassium sulfide, anhydrous; Potassium sulfide, with less than 30% water of crystallization; Potassium sulfide, with less than 30% water of hydration/

/GUIDE 135: SUBSTANCES - SPONTANEOUSLY COMBUSTIBLE/ Health: Fire will produce irritating, corrosive and/or toxic gases. Inhalation of decomposition products may cause severe injury or death. Contact with substance may cause severe burns to skin and eyes. Runoff from fire control may cause pollution. /Potassium sulfide, anhydrous; Potassium sulfide, with less than 30% water of crystallization; Potassium sulfide, with less than 30% water of hydration/

/GUIDE 135: SUBSTANCES - SPONTANEOUSLY COMBUSTIBLE/ Public Safety: CALL Emergency Response Telephone Number ... . As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. Stay upwind. Keep unauthorized personnel away. Keep out of low areas. /Potassium sulfide, anhydrous; Potassium sulfide, with less than 30% water of crystallization; Potassium sulfide, with less than 30% water of hydration/

/GUIDE 135: SUBSTANCES - SPONTANEOUSLY COMBUSTIBLE/ Protective Clothing: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection. Structural firefighters' protective clothing will only provide limited protection. /Potassium sulfide, anhydrous; Potassium sulfide, with less than 30% water of crystallization; Potassium sulfide, with less than 30% water of hydration/

For more DOT Emergency Guidelines (Complete) data for POTASSIUM SULFIDE (16 total), please visit the HSDB record page.

UN 1382; Potassium sulfide, anhydrous; Potassium sulphide, with less than 30% water of crystallization

UN 1847; Potassium sulfide, hydrated with 30% or more water of crystallization

IMO 4.2; Potassium sulfide, anhydrous; Potassium sulphide, with less than 30% water of crystallization

IMO 8.0; Potassium sulfide, hydrated with 30% or more water of crystallization

No person may /transport,/ offer or accept a hazardous material for transportation in commerce unless that person is registered in conformance ... and the hazardous material is properly classed, described, packaged, marked, labeled, and in condition for shipment as required or authorized by ... /the hazardous materials regulations (49 CFR 171-177)./

The International Air Transport Association (IATA) Dangerous Goods Regulations are published by the IATA Dangerous Goods Board pursuant to IATA Resolutions 618 and 619 and constitute a manual of industry carrier regulations to be followed by all IATA Member airlines when transporting hazardous materials.

The International Maritime Dangerous Goods Code lays down basic principles for transporting hazardous chemicals. Detailed recommendations for individual substances and a number of recommendations for good practice are included in the classes dealing with such substances. A general index of technical names has also been compiled. This index should always be consulted when attempting to locate the appropriate procedures to be used when shipping any substance or article.

Spontaneously Combustible

Corrosive

Airtight.

Symbol: C, N; R: 31-34-50; S: (1/2)-26-45-61

UN Hazard Class: 4.2; UN Pack Group: II