COPPER(I) SULFIDE manufacturers and suppliers

COPPER(I) SULFIDE suppliers

Properties

Melting point:: 1100°C

Density: 5.6 g/mL at 25 °C (lit.)

storage temp.: Keep in dark place,Inert atmosphere,Room temperature

solubility: insoluble in H2O; slightly soluble in acid solutions

form: powder

color: Black

Specific Gravity: 5.6

Water Solubility: Slightly soluble in hydrochloric acid, ammonium hydroxide. Insoluble in water.

Merck: 14,2667

Solubility Product Constant (Ksp): pKsp: 47.6

Exposure limits: ACGIH: TWA 1 mg/m3
NIOSH: IDLH 100 mg/m3; TWA 1 mg/m3

Surface tension: 72.2mN/m at 18mg/L and 20℃

Safety Information

Hazard statements: H413

Risk Statements: 20/21/22-40

Safety Statements: 7-22-36/37/39

WGK Germany: 3

RTECS: GL8910000

TSCA: Yes

HS Code: 2830908500

Use

When heated in air, copper(I) sulfide oxidizes forming copper(II) oxide, and sulfur dioxide: Cu2S + 2O2 2CuO + SO2 Heating in the absence of air produces copper(II) sulfide and copper: Cu2S CuS + Cu When heated with nitric acid, copper(I) sulfide decomposes forming copper nitrate and hydrogen sulfide. The compound dissolves in aqueous solutions containing cyanide ions forming soluble copper-cyanide complexes. Copper(I) sulfide reacts with polysulfide anions in aqueous solutions forming soluble copper polysulfides.

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