Melting point :1,4°C
Boiling point :65 °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]
Merck :13,4789
BRN :878137
Exposure limits :TLV-TWA (skin) 1 ppm (1.3 mg/m³ ) (MSHA and OSHA), 0.1 ppm (ACGIH).
Dielectric constant :52.0（20℃）
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
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)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501 H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501 H350 May cause cancer Carcinogenicity Category 1A, 1B Danger H410 Very toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 1 Warning P273, P391, P501
Precautionary statements:	P201 Obtain special instructions before use. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.