Melting point :550°C (dec.)
Density :5,99 g/cm³
solubility :reacts with acid solutions
form :Pieces
Specific Gravity :6.0-6.6
color :Black
Water Solubility :Soluble in HCl with H{2}Se evolution, in H{2}SO{4} with SO{2} evolution. Oxidized to CuSeO{3} by HNO{3}Soluble in hydrochloric acid, sulfuric acid. Insoluble in water.
Merck :14,2651
Exposure limits :ACGIH: TWA 1 mg/m3; TWA 0.2 mg/m3
NIOSH: IDLH 100 mg/m3; IDLH 1 mg/m3; TWA 1 mg/m3; TWA 0.2 mg/m3 CAS DataBase Reference :1317-41-5(CAS DataBase Reference)
EPA Substance Registry System :Copper selenide (CuSe) (1317-41-5)

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 H331 Toxic if inhaled Acute toxicity,inhalation Category 3 Danger P261, P271, P304+P340, P311, P321,P403+P233, 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 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:	P260 Do not breathe dust/fume/gas/mist/vapours/spray. P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P405 Store locked up.