Benzenesulfonyl hydrazide

This chemical does not meet GHS hazard criteria for 4.1% (2 of 49) of reports.

H228 (10.2%): Flammable solid [Danger Flammable solids]

H242 (85.7%): Heating may cause a fire [Danger Self-reactive substances and mixtures; Organic peroxides]

H302 (10.2%): Harmful if swallowed [Warning Acute toxicity, oral]

P210, P234, P235, P240, P241, P264, P270, P280, P301+P317, P330, P370+P378, P403, P410, P411, P420, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 49 reports by companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Reported as not meeting GHS hazard criteria per 2 of 49 reports by companies.

There are 6 notifications provided by 47 of 49 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.

Excerpt from ERG Guide 149 [Substances (Self-Reactive)]:

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

Excerpt from ERG Guide 149 [Substances (Self-Reactive)]:

SMALL FIRE: Dry chemical, CO2, water spray or regular foam.

LARGE FIRE: Flood fire area with water from a distance. 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: BEWARE OF POSSIBLE CONTAINER EXPLOSION. 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. (ERG, 2024)

Excerpt from ERG Guide 149 [Substances (Self-Reactive)]:

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.

LARGE SPILL: Consider initial evacuation for at least 250 meters (800 feet) in all directions.

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 149 [Substances (Self-Reactive)]:

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: Pick up with inert, damp, non-combustible material using clean, non-sparking tools and place into loosely covered plastic containers for later disposal. Prevent entry into waterways, sewers, basements or confined areas. (ERG, 2024)

Excerpt from ERG Guide 149 [Substances (Self-Reactive)]:

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)

Benzenesulfonyl hydrazide appears as a white to light-colored crystalline solid. Insoluble in water and denser than water. Contact may irritate skin, eyes and mucous membranes. May be toxic by ingestion. Readily ignited by sparks or flames and burns vigorously. Used to make other chemicals.

Insoluble in water.

Azo, Diazo, Azido, Hydrazine, and Azide Compounds

Sulfonates, Phosphonates, and Thiophosphonates, Organic

Self-decomposition or self-ignition may be triggered by heat, chemical reaction, friction or impact. May be ignited by heat, sparks or flames.

Flammable Solid