Melting point :7°C
Boiling point :>100 °C
Density :1.078 g/mL at 25 °C
vapor pressure :9 mm Hg ( 40 °C)
refractive index :n20/D 1.393
RTECS :NC2975000
storage temp. :Store below +30°C.
solubility :Water
pka :pK (20°) 7.97
form :white flakes or needles
color :white orthorhombic flakes or needles
PH :10.6 (20°C in H2O)
Water Solubility :Miscible with water, liquid ammonia and methanol. Slightly miscible with ether, benzene, carbon disulfide and chloroform.
Merck :13,4853
Henry's Law Constant :1.4×10³ mol/(m³Pa) at 25℃, HSDB (2015)
Stability :Stable. Incompatible with oxidizing agents, potassium dichromate, chromium trioxide, zinc, calcium, copper, sodium, ammonia, carbonyls, phosphorus halides, pyridine, hypochlorites.
InChI :1S/H3NO/c1-2/h2H,1H2
InChIKey :AVXURJPOCDRRFD-UHFFFAOYSA-N
SMILES :NO
CAS DataBase Reference :7803-49-8(CAS DataBase Reference)
NIST Chemistry Reference :Hydroxylamine(7803-49-8)
EPA Substance Registry System :Hydroxylamine (7803-49-8)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H290 May be corrosive to metals Corrosive to Metals Category 1 Warning P234, P390, P404 H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501 H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310 H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning H351 Suspected of causing cancer Carcinogenicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501 H373 May cause damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 2 Warning P260, P314, P501 H400 Very toxic to aquatic life Hazardous to the aquatic environment, acute hazard Category 1 Warning P273, P391, P501
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P230 Keep wetted with … P233 Keep container tightly closed. P280 Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P371+P380+P375 in case of major fire and large quantities: Evacuate area. Fight fire remotely due to the risk of explosion. P501 Dispose of contents/container to..…