What Is Hydrazine Sulfate?

Hydrazine sulfate is a salt formed by hydrazine and sulfuric acid, with the molecular formula N2H4 · H2SO4. It is colorless and tasteless scaly crystal or orthorhombic crystal. Slightly soluble in cold water, easily soluble in hot water, aqueous solution is acidic. Insoluble in alcohol. Stable in air, not easy to absorb moisture. Is a strong reducing agent. Do not coexist with alkalis and oxidants. Toxic and carcinogenic.

Hydrazine sulfate

Hydrazine sulfate is

Chinese alias: hydrazine sulfate; hydrazine, sulfate

English name: Hydrozine sulfate

English alias: Hydrozine sulfate salt; hydrazinium (2+) sulphate; 6,8-Dichlorocaprylic Acid Ethyl Ester; Hydrazine sulphate; HYDRAZINIUM SULPHATE; Hydrazinium sulfate; hydrazine sulfate (1: 1); hydrazine sulfate (2: 1)

CAS: 10034-93-2

EINECS: 233-110-4

Molecular formula: H6N2O4S

Molecular weight: 130.12

Colorless or white prismatic crystal or

1. It should be stored in a ventilated and dry warehouse. Keep away from heat and flames. Keep container tightly closed.

2. Do not co-storage with alkalis and oxidants

Weight determination

Skin contact: Remove contaminated clothing immediately and rinse with plenty of running water for at least 15 minutes. Seek medical attention.

Eye contact: Raise the eyelids immediately and rinse thoroughly with plenty of running water or saline for at least 15 minutes. Seek medical attention.

Inhalation: Quickly leave the scene to fresh air. Keep your airways open. If breathing is difficult, give oxygen. If breathing stops, give artificial respiration immediately. Seek medical attention.

Ingestion: Rinse mouth with water and drink milk or egg white. Seek medical attention.

Dangerous characteristics: Combustible in case of open flame and high heat. Its powder and air can form

Emergency treatment: Isolate leaking contaminated areas and restrict access. Cut off the fire. It is recommended that emergency workers wear dust masks and general work clothes. Do not touch the spill directly. Small leaks: Avoid dust, sweep up carefully, and collect in a closed container. Large spills: Collected for recycling or transported to a waste disposal site for disposal.

Operational precautions: closed operation to provide adequate local exhaust. Prevent dust from being released into the workshop air. Operators must be specially trained and strictly abide by the operating procedures. It is recommended that the operator wear a dust mask (full face mask), wear rubber acid and alkali resistant clothing, and rubber acid and alkali resistant gloves. Away from fire and heat sources, smoking is strictly prohibited in the workplace. Use explosion-proof ventilation systems and equipment. Avoid generating dust. Avoid contact with oxidants and alkalis. Equipped with the corresponding variety and quantity of fire fighting equipment and leakage emergency treatment equipment. Empty containers may be harmful residues.

Storage precautions: Store in a cool, ventilated warehouse. Keep away from fire and heat sources. Protect from direct sunlight. Packaging is sealed. It should be stored separately from oxidants and alkalis. Equipped with the appropriate variety and quantity of fire equipment. The storage area should be equipped with suitable materials to contain spills.

Occupational exposure limit

China MAC (mg / m3): No standard

Former Soviet Union MAC (mg / m3): No standard

TLVTN: No standard

TLVWN: No standard set

Monitoring method:

Engineering control: Strictly closed, providing sufficient local exhaust.

Respiratory protection: A dust mask (full face mask) must be worn when it may come into contact with dust. Wear an air respirator for emergencies or evacuation.

Eye protection: Protection has been done in respiratory protection.

Body protection: Wear rubber acid and alkali resistant clothing.

Hand protection: Wear rubber acid and alkali resistant gloves.

Other protection: No smoking, eating and drinking at the work site. After work, take a shower. Maintain good hygiene.

The main ingredients:

Appearance and properties: colorless scaly crystal or orthorhombic crystal.

pH:

Melting point (° C): 254

Boiling point (° C): (decomposition)

stability:

Incompatibility:

Acute toxicity: LD50: 601 mg / kg (rat orally)

LC50: Not available

Subacute and chronic toxicity:

Irritation: rabbit eyes: 20mg / 24 hours, moderate irritation.

Allergenicity:

Mutagenicity:

Teratogenicity:

Ecotoxicological toxicity:

Nature of waste:

Waste disposal methods: Treatment and neutralization in a sewage treatment plant. If possible, reuse the container or bury it in a designated place.

Disposal considerations:

Dangerous Goods Number: Not available

UN number: Not available

Packaging mark:

Packing category:

Packaging method: Not available.

Precautions for transportation: The package should be complete at the time of shipment, and the loading should be secure. During transportation, ensure that the container does not leak, collapse, fall, or damage. It is strictly prohibited to mix and transport with oxidants, alkalis, and edible chemicals. During transportation, it should be protected from direct sunlight, rain and high temperature. The transportation vehicle should be equipped with the corresponding variety and quantity of fire fighting equipment and leakage emergency treatment equipment during transportation. The vehicle's exhaust pipe must be equipped with a fire arrester. Stay away from fire and heat sources during stopovers. The vehicle should be thoroughly cleaned after transportation. When transporting by road, follow the prescribed route.

Regulations and Regulations on the Safety Management of Chemical Dangerous Goods (promulgated by the State Council on February 17, 1987), Implementing Rules of the Regulations on the Safety Management of Chemical Dangerous Goods (Chemicals [1992] No. 677), Regulations on the Safe Use of Chemicals in Workplaces ([1996] Labor The Ministry of Public Security No. 423) and other regulations have made corresponding provisions on the safe use, production, storage, transportation, loading and unloading of chemical dangerous goods.

1. Urea method: Urea, sodium hypochlorite and liquid alkali are reacted in the presence of potassium permanganate. After distillation, the reaction is then neutralized with sulfuric acid. The product is cooled, crystallized, filtered, and dried to obtain a hydrazine sulfate product.

2. In the presence of animal glue, partial oxidation of ammonia with sodium hypochlorite and neutralization with sulfuric acid can generate hydrazine sulfate. In a 1L Erlenmeyer flask, add 200mL of 20% ammonia water and 5mL of 1% animal gelatin (gelatin) solution. After adding a 1mol / L sodium hypochlorite solution, quickly heat to boiling and boil for about half an hour to make the excess NH3 was completely evaporated and removed. After the solution was evaporated to about half of the original volume, it was quickly cooled to a slight heat. The solution was neutralized with sulfuric acid and tested with a pH test paper to make the pH value of 7-8. Let it stand for a while, and let the animal glue turn into a gray floc. The precipitate was removed by filtration, and the filtrate was strongly acidified with sulfuric acid. After standing overnight, hydrazine sulfate crystals out. The crystals are filtered off with suction and, if necessary, purified by recrystallization with boiling water.