H5NO
35.046 g/mol
Industrial ChemicalDanger
Ammonium hydroxide
CAS1336-21-6EC921-933-8
Category
Industrial Chemical
Compound Class
Inorganic Salt
Primary Use
Electroplating and industrial processing
Ammonium hydroxide is a solution of ammonia gas dissolved in water, commonly known as ammonia water or aqueous ammonia. It is widely used in industrial processing, particularly in electroplating operations, where it serves as a key reagent.
Electroplating and metal finishingIndustrial chemical processingpH adjustment agent
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
StrongStructure SimilarSimilarity 1.00
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StrongStructure SimilarSimilarity 1.00
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Industrial chemical for multiple applications
StrongStructure SimilarSimilarity 1.00
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baking powder and smelling salts
StrongStructure SimilarSimilarity 1.00
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Buffer in chemical analysis
ApplicationSame Use
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Electroplating and industrial processing
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curing agent for unsaturated polyester resins
Safety Reference
Danger
H314Causes severe skin burns and eye damage
H400Very toxic to aquatic life
H318Causes serious eye damage
H335May cause respiratory irritation
H402Harmful to aquatic life
H290May be corrosive to metals
H302Harmful if swallowed
H370Causes damage to organs
H401Toxic to aquatic life
H371May cause damage to organs
H373May cause damage to organs through prolonged or repeated exposure
H331Toxic if inhaled
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for Ammonium hydroxide (CAS 1336-21-6) is 2814.20, 3824.99, 3906.90.
HS code (international, 6-digit)
2814.20, 3824.99, 3906.90
EU CN code (8-digit)
2814 20 00, 3824 99 92, 3906 90 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
azanium hydroxide
InChIKey
VHUUQVKOLVNVRT-UHFFFAOYSA-N
SMILES
[NH4+].[OH-]
Synonyms (39)
- E527
- USP Solution Ammonia (Ammonium Hydroxide) TS Conforms to USP
- AMINE HYDRATE
- Ammonia aqueous
- Ammonia solution
- Ammonia water
- Ammonia water (JP18)
- Ammonia, aqua
- Ammonia, monohydrate
- Ammonium hydrate
- Ammonium hydroxide, 25% NH3
- Ammoniumhydroxid
- Aquammonia
- Caswell No. 044
- Household ammonia
- Hydroxide, Ammonium
- NH3 H2O
- NH3 water
- SX 1
- SX 1 (ammonia water)
- agua de amoniaco
- ammonia hydrate
- ammoniaque
- ammonium hydorxide
- ammonium hydoxide
- ammonium hydroxide
- ammonium hyroxide
- amonium hydroxide
- amrnonium hydroxide
- hidroxido de amonio
- hydroxyde d'ammonium
- water NH3
- water ammonia
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