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Hydroxylamine hydrochloride

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Hydroxylamine hydrochloride

EINECS 226-798-2
CAS No. 5470-11-1 Density 1.67 g/mL at 25 °C
Solubility 560 g/L (20 °C) in water Melting Point 155-158 °C
Formula H3NO.HCl Boiling Point 56.5 °C at 760 mmHg
Molecular Weight 69.50 Flash Point
Transport Information UN 2923 8/PG 2 Appearance Colorless or off-white crystalline solid
Safety 22-24-37-61 Risk Codes 22-36/38-43-48/22-50
Molecular Structure Molecular Structure of 5470-11-1 (Hydroxylamine,hydrochloride (1:1)) Hazard Symbols HarmfulXn, DangerousN

Hydroxylamine,hydrochloride (8CI,9CI);Hydroxyammonium chloride;Hydroxylamine chloride;Hydroxylamine chlorohydrate;Hydroxylammonium chloride;Oxammonium hydrochloride;hydroxylamine hydrochloride;Hydroxylamine HCl;


Hydroxylamine hydrochloride Chemical Properties

Molecular Structure of Hydroxylamine hydrochloride (CAS NO.5470-11-1):

IUPAC Name: Hydroxylamine hydrochloride 
Molecular Formula: H3NO.HCl
Molecular Weight: 69.49
EINECS: 226-798-2
H-Bond Donor: 3
H-Bond Acceptor: 2 
storage temp.: Store at RT.
Water Solubility :560 g/L (20 °C)
Sensitive: Hygroscopic 
Density: 1.67 g/mL at 25 °C(lit.)
Melting Point: 155-157 °C (dec.)(lit.)
Enthalpy of Vaporization: 34.9 kJ/mol
Boiling Point: 56.5 °C at 760 mmHg
Vapour Pressure: 179 mmHg at 25 °C
Appearance: Colorless or off-white crystalline solid
Classification Code: Mutation data 
Canonical SMILES: NO.Cl
InChI: InChI=1S/ClH.H3NO/c;1-2/h1H;2H,1H2
Stability: Substances to be avoided include strong oxidizing agents. Heating above 115 C may cause explosion; do not store above 65C. Moisture and air sensitive.

Hydroxylamine hydrochloride Uses

 Hydroxylamine hydrochloride (CAS NO.5470-11-1) is used in organic synthesis for preparation of oximes and hydroxamic acids from carboxylic acids, N- and O- substituted hydroxyamines, and addition reactions of carbon-carbon double bond. It is also used as a fixative for textile dyes, auxiliary in some dyeing processes, as a metal extraction and flotation aid, as an antioxidant in fatty acids and soaps, and as a color stabilizer and emulsion additive in color films. Hydroxylamine hydrochloride can be used to remove bromine and polybromide from the solution.
 In surface treatments, Hydroxylamine hydrochloride is used in the preparation of anti-skinning agents, corrosion inhibitors, and cleaner additives. It is also a starting material for pharmaceuticals and agrochemicals manufacturing. In the rubber and plastics industries, it is an antioxidant, vulcanization accelerator, and radical scavenger.

Hydroxylamine hydrochloride Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
dog LDLo subcutaneous 70mg/kg (70mg/kg)   "Abdernalden's Handbuch der Biologischen Arbeitsmethoden." Vol. 4, Pg. 1289, 1935.
mouse LD50 intraperitoneal 10mg/kg (10mg/kg)   National Technical Information Service. Vol. AD277-689,
mouse LD50 oral 408mg/kg (408mg/kg)   Acta Pharmacologica et Toxicologica. Vol. 6, Pg. 285, 1950.
mouse LD50 subcutaneous 125mg/kg (125mg/kg)   Acta Biologica et Medica Germanica. Vol. 21, Pg. 635, 1968.
rat LD50 oral 141mg/kg (141mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD National Technical Information Service. Vol. OTS0555279,

Hydroxylamine hydrochloride Consensus Reports

Reported in EPA TSCA Inventory. EPA Genetic Toxicology Program.

Hydroxylamine hydrochloride Safety Profile

Poison by intraperitoneal and subcutaneous routes. Moderately toxic by ingestion. Mutation data reported. When heated to decomposition it emits very toxic fumes of HCl and NOx.
Safety Information of Hydroxylamine hydrochloride (CAS NO.5470-11-1):
Hazard Codes: HarmfulXn,DangerousN
Risk Statements: 22-36/38-43-48/22-50 
R22:Harmful if swallowed. 
R36/38:Irritating to eyes and skin. 
R43:May cause sensitization by skin contact. 
R48/22:Harmful: danger of serious damage to health by prolonged exposure if swallowed. 
R50:Very toxic to aquatic organisms.
Safety Statements: 22-24-37-61 
S22:Do not breathe dust. 
S24:Avoid contact with skin. 
S37:Wear suitable gloves. 
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR: UN 2923 8/PG 2
WGK Germany: 3
RTECS: NC3675000
F: 21
HazardClass: 8
PackingGroup: III

Hydroxylamine hydrochloride Specification

 Hydroxylamine hydrochloride (CAS NO.5470-11-1), its Synonyms are Hydroxyamine hydrochloride ; Hydroxyammonium chloride ; Hydroxylamine chloride ; Hydroxylamine chloride (1:1) ; Hydroxylamine-1-hydrochloride ; Hydroxylammonium chloride ; Oxammonium hydrochloride .

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