Product Identification

Product Name

Hydrazine monohydrochloride

Synonyms

Hydrazine, monohydrochloride
Hydrazinium chloride
Hydrazinium monochloride

CAS

2644-70-4

Formula

ClH5N2

Molecular Weight

68.5

EINECS

220-154-4

RTECS

MV4625000

RTECS Class

Mutagen

Beilstein/Gmelin

22040 (G)

Physical and Chemical Properties

Appearance

White orthorhombic crystals

Solubility in water

Readily soluble

Melting Point

89-93

Density

1.5 g/cm3 (20 C)

First Aid Measures

Ingestion

Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. Get medical aid. DO NOT use mouth-to-mouth respiration.

Skin

Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Discard contaminated clothing in a manner which limits further exposure. Get medical aid if symptoms occur.

Eyes

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage

Storage

Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.

Handling

Wash thoroughly after handling. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid breathing dust, vapor, mist, or gas. Avoid contact with eyes, skin, and clothing. Keep container tightly closed.

Hazards Identification

Inhalation

Not available.

Skin

May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material.

Eyes

Not available.

Ingestion

Harmful if swallowed.

UN (DOT)

3288

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.

Respirators

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Exposure Effects

May cause cancer in humans.

Fire Fighting Measures

Flash Point

240

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Use agent most appropriate to extinguish fire.

Fire Potential

Non-Combustible

Accidental Release Measures

Small spills/leaks

Avoid runoff into storm sewers and ditches which lead to waterways. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Remove all sources of ignition. Provide ventilation. Clean up residual material by washing area with a 2-5% solution of soda ash.

Stability and Reactivity

Incompatibilities

Oxidizing agents - bases.

Stability

Stable under normal temperatures and pressures.

Decomposition

Hydrogen chloride, nitrogen oxides, irritating and toxic fumes and gases, nitrogen.

Combustion Products

Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

3288

Hazard Class

6.1

Packing Group

I; II; III