- Hydrazinum sulfate
- Hydrazinium(2+) sulfate
A white crystalline solid.
In the gravimetric estimation of nickel, cobalt and cadmium, rare metal refining, prepn of hydrazine hydrate, antioxidant in soldering flux for light metals, reducing agent in the analysis of minerals and slags, in separating polonium from tellurium, in tests for blood, for destroying fungi and molds.
Registry Numbers and Inventories.
EC Index Number
carcinogenic, toxic, sensitizing, dangerous for the environment
R 45 23/24/25 43 50/53
S 53 45 60 61
Tumorigen; Drug; Mutagen; Human Data; Primary Irritant
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
Odor Threshold Odor threshold 1-10 ppm
1.370 g/cm3 (20 C)
Solubility in water
Hazards and Protection.
Keep away from heat, sparks, and flame. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed. Storage under a nitrogen blanket has been recommended.
Wash thoroughly after handling. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. Use only in a chemical fume hood. Avoid mechanical shock and friction.
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 to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
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.
Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions.
Stable under normal temperatures and pressures. Substance is shock sensitive and thermally unstable.
Oxidizing agents, bases.
Nitrogen oxides, carbon monoxide, oxides of sulfur, carbon dioxide.
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. Material is shock sensitive and potentially explosive. Greatly increases the burning rate of combustible materials. May decompose explosively when heated or involved in a fire. To extinguish fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Contact with metals may evolve flammable hydrogen gas.
Fire may produce irritating, corrosive and/or toxic gases.
Prolonged or repeated skin contact may cause sensitization dermatitis and possible destruction and/or ulceration. May cause liver and kidney damage. May cause cancer according to animal studies. Repeated exposure may cause allergic respiratory reaction (asthma).
May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns. May cause liver and kidney damage. May cause corrosion and permanent tissue destruction of the esophagus and digestive tract. Exposure may cause anemia and other blood abnormalities. May be harmful if swallowed.
May cause allergic respiratory reaction. May cause severe respiratory tract irritation and possible burns.
May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material. May cause severe irritation and possible burns.
Contact with eyes may cause severe irritation, and possible eye burns. May cause eye injury.
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Destroy contaminated shoes.
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
I; II; III
2825 10 00