SELENIC ACID S:010

SYNONYMS: ACIDE SELENIQUE (French); ACIDO SELENICO (Spanish); EINECS No. 231-979-4; HYDROSELENIC ACID; SELENSAEURE (German)

IDENTIFICATION:

CAS: 7783-08-6

DOT ID: UN1905

Hazard Class or Division: 8 (CORROSIVE MATERIAL)

ERG Guide: 154

Formula: H ₂O ₄Se

RTECS No: VS6575000

Properties: Noncombustible, colorless liquid, or crystalline hygroscopic solid. Soluble in water.

Uses: Tint etching metals and alloys.

HEALTH & SAFETY INFORMATION

• IDLH: 1 mg[Se]/m ³

• IARC: Group 3, not classifiable as to carcinogenicity to humans; inadequate animal and human evidence.

• OSHA Table Z-1 Air Contaminant as selenium compounds

• Poisonous. Corrosive to the eyes, skin, and respiratory tract. Corrosive if ingested. Inhalation of high concentrations may cause lung edema; the effects may be delayed. Chronic skin exposure may cause dermatitis.

Exposure Limits:

• ACGIH TLV: 0.2 mg[Se]/m ³ TWA

• OSHA PEL/NIOSH REL: 0.2 mg[Se]/m ³ TWA

• DFG MAK: 0.1 mg[Se]/m ³ TWA

Respirator: NIOSH/OSHA as selenium. 1 mg/m ³: DM if not present as a fume (any dust and mist respirator) DMFu (any dust, mist and fume respirator) ? HiEF (any air-purifying, full-facepiece respirator with a high-efficiency particulate filter) ? PAPRDM if not present as a fume (any powered, air-purifying respirator with a dust and mist filter) ? PAPRDMFu (any powered, air-purifying respirator with a dust, mist, and fume filter) SA (any supplied-air respirator) ? SCBAF (any self-contained breathing apparatus with a full facepiece) ? SAF (any supplied-air respirator with a full...