Amines
REACH
Hydrazine
CAS Number
302-01-2
EC Number
206-114-9
What is Hydrazine?
Hydrazine (CAS 302-01-2), also referred to commercially as N2H4, is a reactive inorganic base and reducing agent.
Where is Hydrazine used?
- Chemical synthesis: building block and intermediate for active ingredients, including antituberculosis drugs, herbicides and plant growth regulators
- Corrosion inhibition and oxygen scavenging in boiler and feedwater treatment, high-pressure steam systems, power generation and oil and gas facilities
- Textile and paper processing: reducing agent in dye synthesis and bleaching
- Polymer production: polymerization initiator and chain extender for specialty polymers and foaming agents such as azodicarbonamide
- It is a critical intermediate in pharmaceutical and agrochemical manufacturing.
Good to know: Buyers in pharmaceutical synthesis typically require documentation supporting manufacturing that is compliant with USP or Ph. Eur. standards.
Commercial specifications
- Aqueous solution
- Hydrazine hydrate at approximately 64% and 80% concentrations
- Anhydrous hydrazine for applications where water content is minimized
- Technical and industrial grades
Other Names (Synonyms)
inorganic hydrazine|N2H4|hydrazin|H2NNH2|diazane|nitrogen hydride|diamine|Levoxine
What are the physical properties of Hydrazine?
Melting Point 2.0 °C
Boiling Point 113.5 °C @ Press: 760 Torr
Density 1.146 g/cm³ @ Temp: -5 °C
Flash Point −4 °F
Appearance colourless oily liquid
Color Clear colorless
Odor Fishy or ammonia-like odor detectable at 3 to 4 ppm (mean = 3.7 ppm)
Form Liquid
Water Solubility miscible with H2O and the following alcohols: methyl, ethyl, propyl, isobutyl [MER06]
Vapor Pressure 5 mm Hg ( 25 °C)
Refractive Index n20/D 1.47(lit.)
Log P -0.16 at 20℃
How is Hydrazine classified and handled safely? Learn More
Danger
GHS02· Flammable GHS05· Corrosive GHS06· Toxic GHS08· Health Hazard GHS09· Environmental Hazard GHS07· Irritant
Hazard Statements
H226 Flammable liquid and vapor
H301 Toxic if swallowed
H310 Fatal in contact with skin
H311 Toxic in contact with skin
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233 Keep container tightly closed.
P240 Ground and bond container and receiving equipment.
Which trade and regulatory codes apply to Hydrazine?
HS Code 28251090
UN Number 3293
ADR Class 6.1
Packing Group III
Storage Class 6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects
WGK (Germany) 3