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Properties

Melting point:: 1,4°C

Boiling point:: 113.5 °C

Density: 1.011 g/mL at 25 °C

vapor density: >1 (vs air)

vapor pressure: 5 mm Hg ( 25 °C)

refractive index: n20/D 1.47(lit.)

Flash point:: −4 °F

storage temp.: 2-8°C

solubility: very soluble in H2O, ethanol,methanol

pka: pK1 (25°): ~6.05

form: Liquid

color: Clear colorless

Odor: Fishy or ammonia-like odor detectable at 3 to 4 ppm (mean = 3.7 ppm)

explosive limit: 99.99%

Water Solubility: miscible with H2O and the following alcohols: methyl, ethyl, propyl, isobutyl [MER06]

Thermal Conductivity: 0.57 W/(m·K)

Merck: 13,4789

BRN: 878137

Henry's Law Constant: 1.6×10¹ mol/(m³Pa) at 25℃, HSDB (2015)

Dielectric constant: 52.0（20℃）

Exposure limits: TLV-TWA (skin) 1 ppm (1.3 mg/m³ ) (MSHA and OSHA), 0.1 ppm (ACGIH).

Stability:: Stability May be an explosion hazard, particularly if heated. Incompatible with sources of ignition, light, shock, strong oxidizing agents, strong acids, metal oxides, nitrous oxide, hydrogen peroxide, most common metals, organic materials, porous materials such as wood, paper, asbestos, soil or rust. Many types of metal may cause rapid d

InChI: 1S/H4N2/c1-2/h1-2H2 || [1S/H4N2/c1-2/h1-2H2]

InChIKey: [OAKJQQAXSVQMHS-UHFFFAOYSA-N] || OAKJQQAXSVQMHS-UHFFFAOYSA-N

SMILES: NN

LogP: -0.16 at 20℃

CAS DataBase Reference: 302-01-2(CAS DataBase Reference)

IARC: 2A (Vol. 4, Sup 7, 71, 115) 2018

EPA Substance Registry System: Hydrazine (302-01-2)

Safety Information

Symbol(GHS): GHS05,GHS06,GHS08,GHS09

Signal word: Danger

Hazard statements: H301+H331-H314-H317-H350-H410

Precautionary statements: P201-P261-P273-P280-P301+P310+P330-P305+P351+P338

PPE: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

Hazard Codes: T,N,F

Risk Statements: 45-23/24/25-34-43-50/53-10-51/53-36/37/38-20/21/22-19-11-36/38

Safety Statements: 53-26-36/37-45-61-60-36/37/39-16

RIDADR: UN 2029

OEL: Ceiling: 0.03 ppm (0.04 mg/m3) [2-hour]

WGK Germany: 3

RTECS: MU7175000

F: 10-21

Autoignition Temperature: 24 °C on iron rust surface; 270 °C on glass surface

TSCA: TSCA listed

REACH Registrations: Active

HazardClass: 8

PackingGroup: I

HS Code: 28251090

Storage Class: 6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects

Hazard Classifications: Acute Tox. 3 Inhalation
Acute Tox. 3 Oral
Aquatic Acute 1
Aquatic Chronic 1
Carc. 1B
Skin Corr. 1B
Skin Sens. 1

Hazardous Substances Data: 302-01-2(Hazardous Substances Data)

Toxicity: LD50 in mice (mg/kg): 57 i.v.; 59 orally (Witkin)

IDLA: 50 ppm

Limited Quantities: 1.0 L (0.3 gallon) (liquid)

Excepted Quantities: Not Permitted as Excepted Quantity

Use

Hydrazine is used as a high-energy rocket fuel, as a reducing agent, and for preparing organic hydrazine derivatives. The propellant grade of commercial hydrazine is more than 97.7% active. It is also used as an oxygen scavenger in boiler water. Hydrazine has also been used as an experimental drug for treating tuberculosis and sickle cell anemia. It is an reducing agent for many transition metals and some nonmetals (arsenic, selenium, tellurium), as well as uranium and plutonium; corrosion inhibitor in boiler feedwater and reactor cooling water; waste water treatment; electrolytic plating of metals on glas.

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