| Section 1. Identification | |||
|---|---|---|---|
| Chemical Name | N,N-dimethylcyclohexylamine | CAS No. | 98-94-2 |
| Synonyms | N-cyclo-hexyldimethylamine;(dimethylamino)cyclohexane | Chinese Name | N,N-二甲基环己胺 |
| Molecular Formula | C8H17N | Molecular Weight | 127.26 |
| UN No. | 2264 | Data Source | PubChem (NIH/NLM) |
| GHS Hazard Classification | |
|---|---|
| Signal Word | DANGER |
| Pictograms | GHS02 · Flammable GHS05 · Corrosive GHS06 · Acute Toxic GHS07 · Irritant GHS08 · Health Hazard GHS09 · Environmental Hazard |
| Hazard Statements | H226H301H311H331H302H314H318H330H400H411H412H335H370H401 |
| Precautionary Statements | P210P233P240P241P242P243P260P261P262P264P264+P265P270P271P273P280P284P301+P316P301+P317P301+P330+P331P302+P352P302+P361+P354P303+P361+P353P304+P340P305+P354+P338P316P317P320P321P330P361+P364P363P370+P378P391P403+P233P403+P235P405P501P308+P316P319 |
| Contents | |||
|---|---|---|---|
| Section 2 | Hazards Identification | Section 4 | First-Aid Measures |
| Section 5 | Fire-Fighting Measures | Section 6 | Accidental Release Measures |
| Section 7 | Handling and Storage | Section 8 | Exposure Controls / Personal Protection |
| Section 9 | Physical and Chemical Properties | Section 10 | Stability and Reactivity |
| Section 11 | Toxicological Information | Section 12 | Ecological Information |
| Section 14 | Transport Information | ||
This chemical does not meet GHS hazard criteria for 14.6% (68 of 466) of reports.
H226 (85.2%): Flammable liquid and vapor [Warning Flammable liquids]
H301+H311+H331 (32%): Toxic if swallowed, in contact with skin or if inhaled [Danger Acute toxicity, oral; acute toxicity, dermal; acute toxicity, inhalation]
H301 (72.3%): Toxic if swallowed [Danger Acute toxicity, oral]
H302 (12.7%): Harmful if swallowed [Warning Acute toxicity, oral]
H311 (77%): Toxic in contact with skin [Danger Acute toxicity, dermal]
H314 (84.8%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
H318 (65.7%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
H330 (14.8%): Fatal if inhaled [Danger Acute toxicity, inhalation]
H331 (67%): Toxic if inhaled [Danger Acute toxicity, inhalation]
H400 (11.6%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]
H411 (22.1%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
H412 (40.6%): Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
P210, P233, P240, P241, P242, P243, P260, P261, P262, P264, P264+P265, P270, P271, P273, P280, P284, P301+P316, P301+P317, P301+P330+P331, P302+P352, P302+P361+P354, P303+P361+P353, P304+P340, P305+P354+P338, P316, P317, P320, P321, P330, P361+P364, P363, P370+P378, P391, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 466 reports by companies from 27 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Reported as not meeting GHS hazard criteria per 68 of 466 reports by companies.
There are 25 notifications provided by 398 of 466 reports by companies with hazard statement code(s).
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.
H226: Flammable liquid and vapor [Warning Flammable liquids]
H301: Toxic if swallowed [Danger Acute toxicity, oral]
H311: Toxic in contact with skin [Danger Acute toxicity, dermal]
H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]
H330: Fatal if inhaled [Danger Acute toxicity, inhalation]
H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]
H401: Toxic to aquatic life [Hazardous to the aquatic environment, acute hazard]
H411: Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
P210, P233, P240, P241, P242, P243, P260, P261, P262, P264, P264+P265, P270, P271, P273, P280, P284, P301+P316, P301+P330+P331, P302+P352, P302+P361+P354, P303+P361+P353, P304+P340, P305+P354+P338, P308+P316, P316, P317, P319, P320, P321, P330, P361+P364, P363, P370+P378, P391, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)
H302: Harmful if swallowed [Warning Acute toxicity, oral]
P210, P233, P240, P241, P242, P243, P260, P261, P262, P264, P264+P265, P270, P271, P280, P284, P301+P317, P301+P330+P331, P302+P352, P302+P361+P354, P303+P361+P353, P304+P340, P305+P354+P338, P308+P316, P316, P317, P319, P320, P321, P330, P361+P364, P363, P370+P378, P403+P233, P403+P235, 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.
First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. Refer for medical attention .
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Rinse mouth. Give one or two glasses of water to drink. Do NOT induce vomiting. Refer for medical attention .
Get medical attention.
INHALATION: Remove from exposure area. If the victim has trouble breathing, give oxygen. If breathing has stopped, give articial respiration.
EYES: Flush eyes with water for at least 15 minutes.
SKIN: Remove contaminated clothing. Flush affected areas with plenty of running water. (USCG, 1999)
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.
· In case of burns, immediately cool affected skin for as long as possible with cold water. Do not remove clothing if adhering to skin.
In Canada, an Emergency Response Assistance Plan (ERAP) may be required for this product. Please consult the shipping paper and/or the "ERAP" section.
Fire Extinguishing Agents: Carbon dioxide, dry chemical powder, polymer or alcohol foam. (USCG, 1999)
Use water spray, powder, alcohol-resistant foam, carbon dioxide. In case of fire: keep drums, etc., cool by spraying with water.
· 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.
· All equipment used when handling the product must be grounded.
· Do not touch or walk through spilled material.
· Stop leak if you can do it without risk.
· Prevent entry into waterways, sewers, basements or confined areas.
· A vapor-suppressing foam may be used to reduce vapors.
· Absorb with earth, sand or other non-combustible material.
· For hydrazine, absorb with DRY sand or inert absorbent (vermiculite or absorbent pads).
· Use clean, non-sparking tools to collect absorbed material.
Large Spill
· Dike far ahead of liquid spill for later disposal.
· Water spray may reduce vapor, but may not prevent ignition in closed spaces.
Excerpt from ERG Guide 132 [Flammable Liquids - Corrosive]:
IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area for at least 50 meters (150 feet) in all directions.
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)
Immediate precautionary measure
· Isolate spill or leak area for at least 50 meters (150 feet) in all directions.
· 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: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Collect leaking and spilled liquid in sealable containers as far as possible. Carefully collect remainder. Then store and dispose of according to local regulations. Do NOT let this chemical enter the environment.
Excerpt from ERG Guide 132 [Flammable Liquids - Corrosive]:
ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. All equipment used when handling the product must be grounded. Do not touch or walk through spilled material. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. A vapor-suppressing foam may be used to reduce vapors. Absorb with earth, sand or other non-combustible material. For hydrazine, absorb with DRY sand or inert absorbent (vermiculite or absorbent pads). Use clean, non-sparking tools to collect absorbed material.
LARGE SPILL: Dike far ahead of liquid spill for later disposal. Water spray may reduce vapor, but may not prevent ignition in closed spaces. (ERG, 2024)
Fireproof. Separated from strong acids and food and feedstuffs.
· 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.
1.0 [mg/m3]
11 [mg/m3]
66 [mg/m3]
· Some of these materials may react violently with water.
Small Fire
· Dry chemical, CO2, water spray or alcohol-resistant foam.
Large Fire
· Water spray, fog or alcohol-resistant foam.
· If it can be done safely, move undamaged containers away from the area around the fire.
· Dike runoff from fire control for later disposal.
· Do not get water inside containers.
Fire Involving Tanks, Rail Tank Cars or Highway Tanks
· Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles.
· 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.
· For massive fire, use unmanned master stream devices or monitor nozzles; if this is impossible, withdraw from area and let fire burn.
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20 °C.
The substance is corrosive to the skin, eyes and respiratory tract. Corrosive on ingestion. Inhalation may cause lung oedema. The effects may be delayed. Medical observation is indicated.
Wear self-contained breathing apparatus, rubber boots, heavy rubber gloves. If entering spill area, wear self-contained breathing apparatus and full protective clothing, including boots. (USCG, 1999)
NO open flames, NO sparks and NO smoking. Above 42.2 °C use a closed system, ventilation and explosion-proof electrical equipment.
PREVENT GENERATION OF MISTS! AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!
Use ventilation, local exhaust or breathing protection.
Protective gloves. Protective clothing.
Wear face shield or eye protection in combination with breathing protection.
Do not eat, drink, or smoke during work.
Dimethylcyclohexylamine is a colorless liquid with a musky ammonia odor. Less dense than water. (USCG, 1999)
Liquid; Other Solid
Colorless liquid; [ICSC] Musky ammoniacal odor; [CAMEO] Clear colorless liquid; [MSDSonline]
COLOURLESS LIQUID.
WATER-WHITE LIQ
323.6 °F at 760 mmHg (USCG, 1999)
162-165 °C
FP: BELOW -77 °C
108 °F (USCG, 1999)
110 °F OC
42.2 °C c.c.
PARTLY SOL IN WATER; MISCIBLE WITH ALC, BENZENE, ACETONE
Solubility in water, g/100ml: 20
0.849 at 68 °F (USCG, 1999) - Less dense than water; will float
0.8490 @ 20 °C/20 °C
Relative density (water = 1): 0.85
0.8490 @ 20°C
Relative vapor density (air = 1): 4.4
3.0 [mmHg]
Vapor pressure, kPa at 25 °C: 0.4
3.6 [mm Hg] @20 °C
DISTILLING RANGE 157-160 °C
15N nuclear magnetic resonance spectrum
Chemical shift
Spin-spin coupling constant
Nitrogen Compounds -> Amines, Aliphatic
Corrosives
Flammable agents - 2nd degree
FCS -> FDA Inventory of Food Contact Substances Listed in 21 CFR
Highly flammable. Water soluble.
Amines, Phosphines, and Pyridines
Highly Flammable
DIMETHYLCYCLOHEXYLAMINE neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides.
The substance can be absorbed into the body by inhalation, through the skin and by ingestion.
Sore throat. Burning sensation. Cough. Laboured breathing. Shortness of breath. Symptoms may be delayed.
Redness. Pain. Skin burns.
Redness. Pain. Severe deep burns.
Burning sensation. Abdominal pain. Shock or collapse.
Dermatotoxin - Skin burns.
Toxic Pneumonitis - Inflammation of the lungs induced by inhalation of metal fumes or toxic gases and vapors.
n,n-Dimethylcyclohexylamine
PDF Document
LC50 (rat) = 1,889 mg/m3/2h
The substance is harmful to aquatic organisms.
The substance is harmful to aquatic organisms.
/GUIDE 132: FLAMMABLE LIQUIDS - CORROSIVE/ Fire or Explosion: Flammable/combustible material. May be ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Those substances designated with a (P) may polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.
/GUIDE 132: FLAMMABLE LIQUIDS - CORROSIVE/ Health: May cause toxic effects if inhaled or ingested/swallowed. Contact with substance may cause severe burns to skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.
/GUIDE 132: FLAMMABLE LIQUIDS - CORROSIVE/ Public Safety: CALL Emergency Response Telephone Number on Shipping Paper first. If Shipping Paper not available or no answer, refer to appropriate telephone number listed on the inside back cover. As an immediate precautionary measure, isolate spill or leak area for at least 50 meters (150 feet) in all directions. Keep unauthorized personnel away. Stay upwind. Keep out of low areas. Ventilate closed spaces before entering.
/GUIDE 132: FLAMMABLE LIQUIDS - CORROSIVE/ 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 provides limited protection in fire situations ONLY; it is not effective in spill situations where direct contact with the substance is possible.
For more DOT Emergency Guidelines (Complete) data for N,N-DIMETHYLCYCLOHEXYLAMINE (8 total), please visit the HSDB record page.
Corrosive Flammable Liquid
Do not transport with food and feedstuffs.
UN Hazard Class: 8; UN Subsidiary Risks: 3; UN Pack Group: II