CompoundList
Sign in
Oxygen scavengers and boiler chemicals

Hydrazine safety data

GHS hazards, precautions, first aid, handling and transport for Hydrazine. A classification summary, not a safety data sheet.
CAS 302-01-2Formula H4N2

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

GHS classification

Pictograms, signal word and hazard classes of the GHS classification

GHS02: Flammable
Flammable
GHS05: Corrosive
Corrosive
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment
Signal word
Danger
443
NFPA 704 rating
health, fire, reactivity

Hazard classes and categories

  • Flam. Liq. 3
  • Acute Tox. 3 (oral)
  • Acute Tox. 3 (dermal)
  • Skin Corr. 1
  • Skin Sens. 1
  • Acute Tox. 3 (inhalation)
  • Carc. 1A/1B
  • Aquatic Acute 1
  • Aquatic Chronic 1

Hazard statements

H codes grouped by type. Percentages show the share of classification notifications that report the statement

Physical hazards

  • H226Flammable liquid and vapour.

Health hazards

  • H301Toxic if swallowed.
  • H311Toxic in contact with skin.
  • H314Causes severe skin burns and eye damage.
  • H317May cause an allergic skin reaction.
  • H331Toxic if inhaled.
  • H350May cause cancer.

Environmental hazards

  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.

Precautionary statements

P codes for prevention, response, storage and disposal

Prevention

  • P203Obtain, read and follow all safety instructions before use.
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P233Keep container tightly closed.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • P242Use non-sparking tools.
  • P243Take action to prevent static discharges.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P262Do not get in eyes, on skin, or on clothing.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P272Contaminated work clothing should not be allowed out of the workplace.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.

Response

  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P301 + P330 + P331If swallowed: Rinse mouth. Do not induce vomiting.
  • P302 + P352If on skin: Wash with plenty of water.
  • P302 + P361 + P354If on skin: Take off immediately all contaminated clothing. Immediately rinse with water for several minutes.
  • P303 + P361 + P353If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P318If exposed or concerned, get medical advice.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P333 + P317If skin irritation or rash occurs: Get medical help.
  • P361 + P364Take off immediately all contaminated clothing. And wash it before reuse.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P363Wash contaminated clothing before reuse.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P391Collect spillage.

Storage

  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P403 + P235Store in a well-ventilated place. Keep cool.
  • P405Store locked up.

Disposal

  • P501Dispose of contents and container in accordance with local regulations.

First aid

General first aid measures. Get medical advice if you feel unwell

If inhaled
Respiratory support.
Skin contact
If this chemical contacts the skin, immediately flush the contaminated skin with water. If this chemical penetrates the clothing, immediately remove the clothing and flush the skin with water. Get medical attention promptly.
Eye contact
If this chemical contacts the eyes, immediately wash (irrigate) the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately.
If swallowed
If this chemical has been swallowed, get medical attention immediately.

Handling, storage and disposal

Summaries only, follow the supplier SDS for your grade

Safe handling

Fire: NO open flames, NO sparks and NO smoking. Above 40 °C use a closed system, ventilation and explosion-proof electrical equipment.

General: AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!

Inhalation: Use closed system and ventilation.

Skin: Protective gloves. Protective clothing.

Eyes: Wear face shield or eye protection in combination with breathing protection.

Ingestion: Do not eat, drink, or smoke during work. Wash hands before eating.

Storage

Fireproof. Separated from acids, metals, oxidants and food and feedstuffs. Keep under inert gas. Provision to contain effluent from fire extinguishing. Store in an area without drain or sewer access.

Disposal

Generators of waste (equal to or greater than 100 kg/mo) containing this contaminant, EPA hazardous waste number U133, must conform with USEPA regulations in storage, transportation, treatment and disposal of waste. Product: Burn in a chemical incinerator equipped with an afterburner and scrubber but exert extra care in igniting as this material is highly flammable. Offer surplus and non-recyclable solutions to a licensed disposal company. Contact a licensed professional waste disposal service to dispose of this material, Contaminated packaging: Dispose of as unused product.

Exposure limits and toxicity

Occupational exposure limits and toxicity data

OSHA PEL, 8-hour TWA
1 ppm (1.3 mg/m³)
NIOSH REL, ceiling
0.03 ppm (0.04 mg/m³) [120 minutes]
ACGIH TLV, 8-hour TWA
0.01 ppm
IDLH
50 ppm (potential occupational carcinogen)

Short-term exposure: The substance is corrosive to the eyes, skin and respiratory tract. Inhalation may cause lung oedema, but only after initial corrosive effects on eyes and/or airways have become manifest. Corrosive on ingestion. The substance may cause effects on the liver and central nervous system. Exposure could cause death. Long-term exposure: Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the liver, kidneys and central nervous system. This substance is possibly carcinogenic to humans.

Transport information

UN dangerous goods classification for road, sea and air

UN number
UN 2029
Transport hazard class
8
Packing group
I

Shipping rules depend on mode, quantity and packaging. Confirm the classification with the supplier SDS and your freight forwarder.

Supplier safety data sheets

SDS documents uploaded by suppliers who list this chemical

No supplier has uploaded an SDS for Hydrazine yet. Suppliers usually send one with their quote. Request quotes

Safety questions

Quick answers about handling Hydrazine safely

Is Hydrazine hazardous?

Hydrazine carries the GHS signal word "Danger". Main hazards: flammable liquid and vapour, toxic if swallowed, toxic in contact with skin. This summary is not an SDS, always read the supplier safety data sheet.

Which GHS pictograms apply to Hydrazine?

The GHS classification of Hydrazine shows 5 pictograms: GHS02 (flammable), GHS05 (corrosive), GHS06 (acute toxicity (severe)), GHS08 (serious health hazard), GHS09 (hazardous to the environment).

What is the UN number of Hydrazine?

Hydrazine is transported under UN 2029, hazard class 8, packing group I. Check the supplier SDS and the current ADR, IMDG or IATA rules before shipping.

How should Hydrazine be stored?

Fireproof. Separated from acids, metals, oxidants and food and feedstuffs. Keep under inert gas. Provision to contain effluent from fire extinguishing. Store in an area without drain or sewer access.

Where can I get the SDS for Hydrazine?

Ask the supplier for the safety data sheet of the exact grade you buy. Suppliers on CompoundList can attach their SDS to listings and send it with a quote. This page is a GHS classification summary, not an SDS.

GHS classification summary, not an SDS. Always check the supplier's SDS. Last updated 7 Oct 2026. Report an error

64 suppliers
Free quotes, contact stays private
Get quotes