Ammonium Hydroxide
Ammonium Hydroxide (Certified ACS Plus), Fisher Chemical™ 
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonia aqueous, ammonia water, ammonia, aqua, ammonia, monohydrate, ammonium hydroxide, ammonium hydroxide nh4 oh, ammonium hydroxide solution, aqua ammonia, aquammonia, household ammonia PubChem CID: 14923 ChEBI: CHEBI:18219 IUPAC Name: amine hydrate SMILES: N.O
Ammonium hydroxide, ACS reagent, 28-30% solution in water, Thermo Scientific Chemicals
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonia aqueous, ammonia water, ammonia, aqua, ammonia, monohydrate, ammonium hydroxide, ammonium hydroxide nh4 oh, ammonium hydroxide solution, aqua ammonia, aquammonia, household ammonia PubChem CID: 14923 ChEBI: CHEBI:18219 SMILES: N.O
Ammonium Hydroxide (26° Bé/NF/FCC), Fisher Chemical
CAS: 7664-41-7 Molecular Formula: H3N Molecular Weight (g/mol): 17.03 MDL Number: MFCD00011418 InChI Key: QGZKDVFQNNGYKY-UHFFFAOYSA-N Synonym: am-fol, ammonia, ammonia anhydrous, ammonia gas, ammonia, anhydrous, ammoniak, ammoniakgas, anhydrous ammonia, nitro-sil, spirit of hartshorn PubChem CID: 222 ChEBI: CHEBI:16134 IUPAC Name: ammonia SMILES: N
Ammonium Hydroxide (Optima™), Fisher Chemical™
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonia aqueous, ammonia water, ammonia, aqua, ammonia, monohydrate, ammonium hydroxide, ammonium hydroxide nh4 oh, ammonium hydroxide solution, aqua ammonia, aquammonia, household ammonia PubChem CID: 14923 ChEBI: CHEBI:18219 IUPAC Name: amine hydrate SMILES: N.O
Ammonia Solution, FCC, 27-30%, Spectrum™ Chemical
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N IUPAC Name: amine hydrate SMILES: N.O
Ammonium Hydroxide, 30%, BAKER INSTRA-ANALYZED Reagent, J.T. Baker™
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonia aqueous, ammonia water, ammonia, aqua, ammonia, monohydrate, ammonium hydroxide, ammonium hydroxide nh4 oh, ammonium hydroxide solution, aqua ammonia, aquammonia, household ammonia PubChem CID: 14923 ChEBI: CHEBI:18219 IUPAC Name: azanium;hydroxide SMILES: N.O
Ammonium Hydroxide (TraceMetal™ Grade), Fisher Chemical™
Chemical Name or Material: Ammonium Hydroxide CAS: 1336-21-6 Grade: TraceMetal Linear Formula: NH4OH MDL Number: MFCD00066650 Synonym: ammonia aqueous, ammonia water, ammonia, aqua, ammonia, monohydrate, ammonium hydroxide, ammonium hydroxide nh4 oh, ammonium hydroxide solution, aqua ammonia, aquammonia, household ammonia
Ammonium hydroxide, 30%, J.T. Baker™
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonia aqueous, ammonia water, ammonia, aqua, ammonia, monohydrate, ammonium hydroxide, ammonium hydroxide nh4 oh, ammonium hydroxide solution, aqua ammonia, aquammonia, household ammonia PubChem CID: 14923 ChEBI: CHEBI:18219 IUPAC Name: amine hydrate SMILES: N.O
Ammonium Hydroxide, ACS Grade, 28.0 to 30.0%, LabChem™
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonia aqueous, ammonia water, ammonia, aqua, ammonia, monohydrate, ammonium hydroxide, ammonium hydroxide nh4 oh, ammonium hydroxide solution, aqua ammonia, aquammonia, household ammonia PubChem CID: 14923 ChEBI: CHEBI:18219 IUPAC Name: amine hydrate SMILES: N.O
Ammonium hydroxide, for HPLC, 35% solution in water, Thermo Scientific Chemicals
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonia aqueous, ammonia water, ammonia, aqua, ammonia, monohydrate, ammonium hydroxide, ammonium hydroxide nh4 oh, ammonium hydroxide solution, aqua ammonia, aquammonia, household ammonia PubChem CID: 14923 ChEBI: CHEBI:18219 IUPAC Name: amine hydrate SMILES: N.O
Ammonium hydroxide, 25% NH{3}, 99.99% (metals basis), Thermo Scientific Chemicals
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonia aqueous, ammonia water, ammonia, aqua, ammonia, monohydrate, ammonium hydroxide, ammonium hydroxide nh4 oh, ammonium hydroxide solution, aqua ammonia, aquammonia, household ammonia PubChem CID: 14923 ChEBI: CHEBI:18219 SMILES: N.O
Strong Ammonia Solution, NF, 27-31%, Spectrum™ Chemical
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N IUPAC Name: amine hydrate SMILES: N.O
Ammonia solution 25%, Suprapur™, MilliporeSigma™
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonia aqueous, ammonia water, ammonia, aqua, ammonia, monohydrate, ammonium hydroxide, ammonium hydroxide nh4 oh, ammonium hydroxide solution, aqua ammonia, aquammonia, household ammonia PubChem CID: 14923 ChEBI: CHEBI:18219 IUPAC Name: amine hydrate SMILES: N.O
Ammonium Hydroxide, 29%, Electronic/Cleanroom Grade, 28.0-30.0%, Spectrum™ Chemical
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N IUPAC Name: amine hydrate SMILES: N.O
Ammonia, Dilute R1 (102 g/L NH3), Ricca Chemical
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonia aqueous, ammonia water, ammonia, aqua, ammonia, monohydrate, ammonium hydroxide, ammonium hydroxide nh4 oh, ammonium hydroxide solution, aqua ammonia, aquammonia, household ammonia PubChem CID: 14923 ChEBI: CHEBI:18219 IUPAC Name: amine hydrate SMILES: N.O
Ammonium Hydroxide, 50% (v/v), Ricca Chemical
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N PubChem CID: 14923 ChEBI: CHEBI:18219 IUPAC Name: amine hydrate SMILES: N.O
Ammonium Hydroxide, 2.0 N Solution, Spectrum™ Chemical
CAS: 1336-21-6
Ammonium Hydroxide ACS, MilliporeSigma™
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonia aqueous, ammonia water, ammonia, aqua, ammonia, monohydrate, ammonium hydroxide, ammonium hydroxide nh4 oh, ammonium hydroxide solution, aqua ammonia, aquammonia, household ammonia PubChem CID: 14923 ChEBI: CHEBI:18219 IUPAC Name: amine hydrate SMILES: N.O
Ammonia, ca. 7N solution in methanol, Thermo Scientific Chemicals
Ammonia, H3N, CAS Number-7664-41-7, 67-56-1, am-fol, ammonia, ammonia anhydrous, ammonia, anhydrous, ammonia gas, ammoniak, ammoniakgas, anhydrous ammonia, nitro-sil, spirit of hartshorn, 2.5L, CHEBI:16134, Colorless to Yellow, 6.0 to 7.5N, 0.7700g/mL, 05,15, 14 deg.C, 17.03, GHS Signal Word: Danger
Ammonium Hydroxide, ACS Grade, 28.0 to 30.0%, LabChem™
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonia aqueous, ammonia water, ammonia, aqua, ammonia, monohydrate, ammonium hydroxide, ammonium hydroxide nh4 oh, ammonium hydroxide solution, aqua ammonia, aquammonia, household ammonia PubChem CID: 14923 ChEBI: CHEBI:18219 IUPAC Name: amine hydrate SMILES: N.O
Ammonium Hydroxide, 1.0 N Solution, Spectrum™ Chemical
CAS: 1336-21-6
Ammonium Hydroxide Solution, ≥99.99%, Honeywell™
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonia aqueous, ammonia water, ammonia, aqua, ammonia, monohydrate, ammonium hydroxide, ammonium hydroxide nh4 oh, ammonium hydroxide solution, aqua ammonia, aquammonia, household ammonia PubChem CID: 14923 ChEBI: CHEBI:18219 IUPAC Name: azanium;hydroxide SMILES: N.O
Ammonium hydroxide, for analysis, 28-30 wt% solution of NH3 in water, Thermo Scientific Chemicals
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonia aqueous, ammonia water, ammonia, aqua, ammonia, monohydrate, ammonium hydroxide, ammonium hydroxide nh4 oh, ammonium hydroxide solution, aqua ammonia, aquammonia, household ammonia PubChem CID: 14923 ChEBI: CHEBI:18219 SMILES: N.O
Ammonium Hydroxide, 28.0 to 30.0%, BAKER ANALYZED™ A.C.S. Reagent, J.T. Baker™
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonia aqueous, ammonia water, ammonia, aqua, ammonia, monohydrate, ammonium hydroxide, ammonium hydroxide nh4 oh, ammonium hydroxide solution, aqua ammonia, aquammonia, household ammonia PubChem CID: 14923 ChEBI: CHEBI:18219 SMILES: N.O
Ammonium Hydroxide, 6.00 N, Ricca Chemical
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonia aqueous, ammonia water, ammonia, aqua, ammonia, monohydrate, ammonium hydroxide, ammonium hydroxide nh4 oh, ammonium hydroxide solution, aqua ammonia, aquammonia, household ammonia PubChem CID: 14923 ChEBI: CHEBI:18219 IUPAC Name: amine hydrate SMILES: N.O
Ammonium Hydroxide, ACS Reagent Grade, Ricca Chemical
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonia aqueous, ammonia water, ammonia, aqua, ammonia, monohydrate, ammonium hydroxide, ammonium hydroxide nh4 oh, ammonium hydroxide solution, aqua ammonia, aquammonia, household ammonia PubChem CID: 14923 ChEBI: CHEBI:18219 IUPAC Name: amine hydrate SMILES: N.O
Ammonium Hydroxide, 20% (v/v), Ricca Chemical
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonia aqueous, ammonia water, ammonia, aqua, ammonia, monohydrate, ammonium hydroxide, ammonium hydroxide nh4 oh, ammonium hydroxide solution, aqua ammonia, aquammonia, household ammonia PubChem CID: 14923 ChEBI: CHEBI:18219 IUPAC Name: amine hydrate SMILES: N.O
Ammonium Hydroxide, Reagent, ACS, 28-30%, Spectrum™ Chemical
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N IUPAC Name: amine hydrate SMILES: N.O
Ammonia Solution, 32%, EMPlura™, MilliporeSigma™™
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonia aqueous, ammonia water, ammonia, aqua, ammonia, monohydrate, ammonium hydroxide, ammonium hydroxide nh4 oh, ammonium hydroxide solution, aqua ammonia, aquammonia, household ammonia PubChem CID: 14923 ChEBI: CHEBI:18219 IUPAC Name: amine hydrate SMILES: N.O
Ammonium hydroxide solution, Eluent additive for LC-MS, ≥25% in H2O, Honeywell Fluka™
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N Synonym: ammonia aqueous, ammonia water, ammonia, aqua, ammonia, monohydrate, ammonium hydroxide, ammonium hydroxide nh4 oh, ammonium hydroxide solution, aqua ammonia, aquammonia, household ammonia PubChem CID: 14923 ChEBI: CHEBI:18219 SMILES: N.O
Known as ammonia water, ammonia liquor, aqueous ammonia, or colloquially as ammonia, ammonium hydroxide (NH4OH), CAS 1336-21-6, is a colorless solution of ammonia in water. Available in multiple grades — ACS, HPCL, food, LCMS, USP, analytical, industrial, trace metal — ammonium hydroxide is a volatile, pungent-smelling liquid.
Ammonium hydroxide is used in traditional qualitative inorganic analysis as a complexant and base. It is also often found in solutions used to clean gold, silver, and platinum jewelry. It has numerous industrial applications, from making furniture to food production where it is used as leavening agent or acidity regulator. Ammonium hydroxide is a strong cleaning agent that is quite toxic. However, highly diluted ammonium hydroxide, also known as household ammonia, is a common ingredient in many cleaning agents.
Key applications of ammonium hydroxide are:
- As a cleaning agent for industrial and commercial products
- In the production of detergents, soaps, ceramics, pharmaceuticals, and inks
- In adhesive and sealant chemicals
Ammonium hydroxide is highly toxic when inhaled, ingested, or absorbed through the skin. Direct exposure causes irritation of the eyes and the respiratory system. Workers should wear appropriate personal protective equipment (PPE). The chemical should be stored in closed containers away from heat.