HYDROXYLAMINE HYDROCHLORIDE AR/ACS

Powerful reducing agent used as catalyst .
Swelling agent and co-polymerization inhibitor in polymerization process. "Store at 15–25°C"
Hydroxylammonium chloride

Article No.	04130	Grade	AR/ACS
Purity	99%	CAS No.	5470-11-1
Molecular Formula	H₄ClNO	Molecular Weight	69.49
H.S. Code	2825.1090	Shelf Life	60 Months

Physical Properties

Physical state at 20 °C	Solid	Colour	White crystalline
Odour	Odorless	pH value	2.5 - 3.5
Melting point/ Freezing point [°C]	155 - 157 °C	Boiling point [°C]	305.6°C
Density [g/cm3]	1.67	Solubility in water [% weight]	Soluble in water

Specifications

Appearance	Colorless hygroscopic solids or white crystalline powder
Assay	Min 99%
Clarity of solution (1 g in 25 mL ethanol)	Passes test
pH (5% solution in water)	2.5 - 3.5
Sulphur compounds (as SO4)	Max 0.005%
Heavy metals (by ICP-OES)	Max 0.0005%
Iron (Fe)	Max 0.0005%
Ammonium (NH4)	Passes ACS test
Residue on ignition	Max 0.05%
Titrable free acid	Max 0.25 meq/g

Packings

100 g	00100
500 g	00500

Safety Information

Symbol: GHS05, GHS07, GHS08, GHS09
Signal Word: Warning
UN No.: 2923
IMCO Class No.: 8 (6.1)
Packing Group: III
Hazardous Statement: H290-H302-H312-H315-H317-H319-H351-H373-H400
Precaution Statement: P273-P280-P301+P312-P302+P352-P305+P351+P338-P337+P313

Revision Date : 13-Feb-2026