1,2-DIMETHYLHYDRAZINE

A colorless liquid with an ammonia-like odor. Less dense than water. Contact irritate skin, eyes, and mucous membranes. Very toxic by ingestion, inhalation and skin absorption. Used to make photographic chemicals.

• Highly Flammable
• Strong Reducing Agent

Highly flammable. Fumes upon exposure to air. Soluble in water with evolution of heat.

Special Hazards of Combustion Products: None

Behavior in Fire: Tends to re-ignite unless diluted with much water. (USCG, 1999)

Breathing of vapor causes pulmonary irritation, delayed gastro-intestinal irritation, tremors, and convulsions. Contact with skin or mucous membranes causes chemical burns. Can be absorbed through skin to cause systemic intoxication and convulsions. (USCG, 1999)

1,2-DIMETHYLHYDRAZINE dissolves, swells, and disintegrates many plastics (USCG, 1999). It is a strong reducing agent and may react with oxidizing agents to generate heat and products that may be flammable, combustible, or otherwise reactive.

• Azo, Diazo, Azido, Hydrazine, and Azide Compounds
• Reducing Agents, Strong

No information available.

Excerpt from 131 [Flammable Liquids - Toxic]:

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

SPILL: See ERG Table 1 - Initial Isolation and Protective Action Distances on the UN/NA 2382 datasheet.

FIRE: If tank, rail car or tank truck 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, 2020)

Excerpt from 131 [Flammable Liquids - Toxic]:

CAUTION: The majority of these products have a very low flash point. Use of water spray when fighting fire may be inefficient. CAUTION: Methanol (UN1230) will burn with an invisible flame. Use an alternate method of detection (thermal camera, broom handle, etc.).

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. Avoid aiming straight or solid streams directly onto the product.

FIRE INVOLVING TANKS OR CAR/TRAILER LOADS: 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 engulfed in fire. For massive fire, use unmanned master stream devices or monitor nozzles; if this is impossible, withdraw from area and let fire burn. (ERG, 2020)

Excerpt from 131 [Flammable Liquids - Toxic]:

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.

SMALL SPILL: Absorb with earth, sand or other non-combustible material and transfer to containers for later disposal. 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, 2020)

Rubber gloves, boots, and apron; plastic face shield. Gas mask with ammonia (GMD) canister protects for 30 min. against 1% concentration; for longer periods or higher concentrations, use self-contained breathing apparatus. (USCG, 1999)

No information available.

INHALATION: Remove victim from contaminated area, give artificial respiration and oxygen if needed; watch for signs of pulmonary edema; enforce absolute rest.

INGESTION: Do NOT induce vomiting; hospitalize.

SKIN OR EYES: Flood with water and treat as alkaline burn. (USCG, 1999)

• DIMETHYLHYDRAZINE, SYMMETRICAL
• 1,2-DIMETHYLHYDRAZINE
• DMH
• HYDRAZINE, 1,2-DIMETHYL-
• HYDRAZOMETHANE
• N,N'-DIMETHYLHYDRAZINE
• SDMH
• SYM-DIMETHYLHYDRAZINE