Lead(II) sulfide

Synonyms

C.I. 77640; CI 77640; Galena; Lead monosulfide; Lead sulfide; Lead sulfide (PbS); Lead(2+) sulfide; Lead(II) sulfide; Natural galena; Natural lead sulfide; P 128; P 128 (sulfide); P 37 (filter); Plumbous sulfide; [ChemIDplus]

Category

Lead Compounds, Inorganic

Description

Metallic black crystals; [HSDB] Slightly soluble in water (0.86 mg/L at 13 deg C); [ATSDR ToxProfiles]

Sources/Uses

Used in semiconductors, ceramic glaze, photoconductive cells, infrared detectors, transistors, humidity sensors, catalysts, mirror coatings, high-temperature lubricants, and blue pigments; [HSDB] Niello is a black alloy of sulfur, copper, silver, and lead used to decorate engraved metal, usually silver. [Britannica online] Lead sulfide dust is produced when grinding this alloy. [www.ci.tucson.az.us/arthazards/medium.html]

Comments

Toxic by ingestion and inhalation; Can cause skin and eye burns; [CAMEO] See "Lead" and linked occupational diseases.

Biomedical References

Lead in blood = 200 ug/L (20 ug/100 ml); sampling time not critical; [ACGIH]

0.05 mg/m3, as Pb

0.05 mg/m3, as Pb

Explanatory Notes

mp = 1,114 deg C; [ATSDR ToxProfiles]

Hemolytic anemia

Predominantly motor

Yes

Yes

Skin burns

Probable (2a)

Anticipated human carcinogen

Confirmed Animal

Diseases

Occupational diseases associated with exposure to this agent:

• Lead, subacute toxic effect

Processes

Industrial Processes with risk of exposure:

• Painting (Pigments, Binders, and Biocides)
• Semiconductor Manufacturing

Activities

Activities with risk of exposure:

• Ceramics making
• Jewelry making