Hydrazine Information



Other Names

Diamine, Diazine

Chemical Formula


CAS Number

302 – 01 – 2

Industry Uses

Pharmaceuticals; Rocket Propellant; Polymer Foams

Health Risks

Irritation of eyes, skin, and respiratory system; Dizziness and Headaches; Organ Damage

Vapor Pressure

14.4 mmHg

Water Solubility





Pungent, Ammonia-like

Hydrazine MSDS

What is Hydrazine:

Hydrazine is a colorless, oily liquid with an ammonia-like odor. Hydrazine is a highly reactive base and reducing agent. It is used as an antioxidant, oxygen scavenger, and corrosion inhibitor in water boilers and heating systems. Hydrazine is primarily used as a foaming agent in preparing polymer foams. It is also used in pharmaceuticals as well as in rocket propellant and fuel products. Many construction materials are partially composed of hydrazine. Hydrazine is a flammable liquid and vapor, and it can form explosive mixtures with air. Vapor is heavier than air and will spread along the ground collecting in low areas like sewers and basements. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution. Hydrazine is extremely toxic to aquatic life and has long lasting effects on the environment.

Hydrazine Exposure and Health Risks:

Hydrazine is toxic by inhalation and skin absorption and is corrosive to tissue. Hydrazine can cause irritation to the eyes, nose, and throat. Skin burns and allergic reactions can occur at skin contact. Symptoms of exposure include dizziness, headaches, nausea, pulmonary edema, seizures, and coma. Liver and kidney damage can occur, as well as to the central nervous system. Chronic exposure has shown to cause spleen, lung, and thyroid disease as well. Hydrazine can be fatal if swallowed, inhaled, or contacted directly, and is a known carcinogen.


The table below summarizes the most-recent exposure limits.




0.1 ppm

AEGL-1 (8 hrs)


1.6 ppm

AEGL-2 (8 hrs)


4.4 ppm

AEGL-3 (8 hrs)


1 ppm

TWA (8 hrs)


0.03 ppm

C (2-hour)



Measuring Hydrazine:

Hydrazine concentration can be measured in air or in water (dissolved) in units of parts per million (ppm). Many of our products have digital communication capabilities for easy monitoring and control. We carry portable, fixed, and dissolved hydrazine monitors and kits. All of our hydrazine products can be viewed HERE.

What type of component are you looking for?

Fixed Mount Handheld Dissolved Kits:  Replacement Sensors: Calibration Gas:  Rentals: 

All sensors require a yearly calibration to ensure your gas measurements are accurate and performing within manufacturer standards. This page is desiccated to the individual manufacturers we represent and their specific calibration procedures. 

**Calibration Service Request Form **

Calibration Costs:

Calibration costs do vary, see below to get an estimate: 

Calibration Fee: $150

Analyzer Calibration Fee: $300

PM Calibration Sensor Fee: $330

Genie Calibration Fee: $265

ATI Calibration Fee: $205

** note that prices are subject to change per labor and parts required.


Contact us for help choosing the right monitor for your application