Agent Name

Cupric sulfide

CAS Number

1317-40-4

Formula

Cu-S

Major Category

Metals

Synonyms

C.I. 77450; C.I. Pigment Blue 34; CI 77450; CI Pigment Blue 34; Copper Blue; Copper monosulfide; Copper sulfide (CuS); Copper(2+) sulfide; Copper(II) sulfide; Horace Vernet's Blue; Monocopper monosulfide; Natural covellite; Oil Blue; [ChemIDplus]

Category

Metals, Inorganic Compounds

Description

Black solid; [Merck Index]

Sources/Uses

Occurs in nature as the mineral covellite; [Merck Index] Used in antifouling paints, mixed catalysts, and to develop aniline black dyes in textile printing; Also used as a varnish pigment, oxidizing agent, component of solid state electrodes, and thin-film solar cell with cadmium sulfide; [HSDB]

Comments

May decompose on exposure to moisture; May cause irritation; [MSDSonline] See "Copper."

Exposure Assessment
TLV (ACGIH)

1 mg/m3, as Cu

PEL (OSHA)

1 mg/m3, as Cu

MAK

0.01 mg/m3, respirable fraction (Cu, inorganic cmpnds)

IDLH (NIOSH)

100 mg/m3, as Cu

Adverse Effects
Hepatotoxin

Hepatotoxin, Secondary

Methemoglobinemia

Methemoglobinemia, Secondary

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Processes

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