| | Identification | More |  | [Name] 
 COPPER (II) SELENIDE
 |  | [CAS] 
 1317-41-5
 |  | [Synonyms] 
 COPPER (II) SELENIDE
 COPPER SELENIDE
 CUPRIC SELENIDE
 copperselenide(cuse)
 Copperselenidemetalsbasisblackxtl
 COPPER(II) SELENIDE  99.99%
 Copper(II) selenide, 99.9%
 Copper(II)selenide,99.5%(metalsbasis)
 Copper (II) selenide, 99.999% (metals basis)
 Copper(II) selenide, 99.99% (metals basis)
 |  | [EINECS(EC#)] 
 215-272-8
 |  | [Molecular Formula] 
 CuSe
 |  | [MDL Number] 
 MFCD00016058
 |  | [Molecular Weight] 
 142.51
 |  | [MOL File] 
 1317-41-5.mol
 | 
 | Chemical Properties | Back Directory |  | [Melting point ] 
 550°C  (dec.)
 |  | [density ] 
 5,99 g/cm3
 |  | [solubility ] 
 reacts with acid solutions
 |  | [form ] 
 Pieces
 |  | [color ] 
 Black
 |  | [Specific Gravity] 
 6.0-6.6
 |  | [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)
 | 
 | Hazard Information | Back Directory |  | [Chemical Properties] 
 6mm pieces and smaller with 99.5% purity; bluish black to greenish black; prismatic needles or hexagonal plates; decomposes at dull red heat [MER06] [CER91]
 |  | [Uses] 
 Catalyst in Kjeldahl digestions; in semiconductors.
 | 
 | Safety Data | Back Directory |  | [Hazard Codes ] 
 T,N
 |  | [Risk Statements ] 
 R23/25:Toxic by inhalation and if swallowed .
 R33:Danger of cumulative effects.
 R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
 |  | [Safety Statements ] 
 S20/21:When using, do not eat, drink or smoke .
 S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
 S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
 S60:This material and/or its container must be disposed of as hazardous waste .
 S61:Avoid release to the environment. Refer to special instructions safety data sheet .
 |  | [RIDADR ] 
 3288
 |  | [TSCA ] 
 Yes
 |  | [HazardClass ] 
 6.1(b)
 |  | [PackingGroup ] 
 III
 |  | [HS Code ] 
 2921290090
 | 
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                            | Company Name: | Alfa Aesar |  
                            | Tel: | 400-6106006 |  
                            | Website: | http://chemicals.thermofisher.cn |  |