Melting point :300 °C(lit.)
Boiling point :707 °C
Density :3.43 g/mL at 25 °C(lit.)
Flash point :707°C
storage temp. :Poison room
solubility :insoluble in H2O; soluble in alkaline solutions
form :Powder
Specific Gravity :3.43
color :Yellow to orange
Water Solubility :Insoluble in water. Soluble in alkali sulfides or carbonate, hot HCl
Sensitive :moisture sensitive
Merck :14,806
crystal system :Monoclinic
Space group :P21/n
Solubility Product Constant (Ksp) :pKsp: 21.68
Lattice constant :

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
1.146	0.957	0.422	90	90.5	90	0.4628

Exposure limits :ACGIH: TWA 0.01 mg/m3
NIOSH: IDLH 5 mg/m3; Ceiling 0.002 mg/m3 CAS DataBase Reference :1303-33-9(CAS DataBase Reference)
EPA Substance Registry System :Arsenic trisulfide (1303-33-9)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H301 Toxic if swalloed Acute toxicity,oral Category 3 Danger P264, P270, P301+P310, P321, P330,P405, P501 H311 Toxic in contact with skin Acute toxicity,dermal Category 3 Danger P280, P302+P352, P312, P322, P361,P363, P405, P501 H331 Toxic if inhaled Acute toxicity,inhalation Category 3 Danger P261, P271, P304+P340, P311, P321,P403+P233, P405, P501 H400 Very toxic to aquatic life Hazardous to the aquatic environment, acute hazard Category 1 Warning P273, P391, P501 H410 Very toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 1 Warning P273, P391, P501
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P270 Do not eat, drink or smoke when using this product. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P302+P352 IF ON SKIN: wash with plenty of soap and water. P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P309 IF exposed or if you feel unwell: P310 Immediately call a POISON CENTER or doctor/physician. P311 Call a POISON CENTER or doctor/physician. P405 Store locked up. P501 Dispose of contents/container to..…