MSDS Ammonia Solution (Ammonium Hydroxide) (NH3 / NH4OH) – Safety Data Sheet & GHS Hazards

Summary MSDS for Ammonia Solution (Ammonium Hydroxide) (NH3 / NH4OH), CAS 1336-21-6: substance identity, GHS hazard classification, hazard and precautionary statements, and links to the manufacturer's official SDS.

Identity summary

Name Ammonia Solution (Ammonium Hydroxide)
Other names (IUPAC) Ammonium Hydroxide, azanium hydroxide
Molecular formula NH3 / NH4OH
CAS number 1336-21-6
Molar mass 35.046 g/mol
PubChem CID 14923

Hazard identification (GHS)

Signal word: DANGER

Pictograms:

GHS05 – Corrosive
Corrosive
GHS07 – Harmful / irritant
Harmful / irritant
GHS08 – Health hazard
Health hazard
GHS09 – Environmental hazard
Environmental hazard

Hazard statements (H)

  • H302: Harmful if swallowed.
  • H314: Causes severe skin burns and eye damage.
  • H370: Causes damage to organs.
  • H400: Very toxic to aquatic life.
  • H290: May be corrosive to metals.

Precautionary statements (P)

Prevention

  • P273: Avoid release to the environment.
  • P270: Do not eat, drink or smoke when using this product.
  • P260: Do not breathe mist or vapours.
  • P234: Keep only in original packaging.
  • P264: Wash skin thoroughly after handling.
  • P280: Wear protective gloves/ protective clothing/ eye protection/ face protection.

Response

  • P390: Absorb spillage to prevent material damage.
  • P391: Collect spillage.
  • P308 + P311: IF exposed or concerned: Call a POISON CENTER/doctor.
  • P303 + P361 + P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water.
  • P301 + P330 + P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
  • P363: Wash contaminated clothing before reuse.
  • P301 + P312 + P330: IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell. Rinse mouth.
  • P304 + P340 + P310: IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor.
  • P305 + P351 + P338 + P310: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/doctor.

Storage

  • P406: Store in a corrosion resistant container with a resistant inner liner.
  • P405: Store locked up.

Disposal

  • P501: Dispose of contents/ container to an approved waste disposal plant.

The GHS classification above matches TCI (Tokyo Chemical Industry) official data for product A2038 Ammonia Solution (28% in Water). Substance identity from PubChem CID 14923.

Download the official SDS & CoA

The applicable Safety Data Sheet is the manufacturer's SDS for the product and lot you purchase. For products available from AMI Scientific:

TCI A2038 – Ammonia Solution (28% in Water) Official SDS & CoA (TCI)
TCI A2038 – Ammonia Solution (28% in Water) View product

SDS and lot-specific CoA are sent with the quotation/order or on request.

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What is an MSDS/SDS?

An MSDS (Material Safety Data Sheet), now called an SDS (Safety Data Sheet), is a 16-section document describing the hazards, handling, storage, first aid, and disposal of a chemical. Read the full MSDS guide and other MSDS pages.

This summary was compiled by AMI Scientific from TCI official GHS data for information purposes. Classification may differ by concentration, form, and supplier. Always refer to the manufacturer's official SDS for the product and lot you use. Updated: 23-10-2026.