Cobaltous acetate

  • Bis(acetato)cobalt
  • Cobalt acetate
  • Cobalt(2+) acetate
  • Cobalt(II) acetate
  • Cobalt diacetate
Formula
2 C2H4O2 . Co
Structure
Description
Red-violet crystalline solid. Vinegar-like odor.
Uses
Foam stabilizers for malt beverages. Former use.

Registry Numbers and Inventories.
CAS
71-48-7
EC (EINECS/ELINCS)
200-755-8
RTECS
AG3150000
RTECS class
Tumorigen; Drug; Mutagen
Merck
12,2494
Beilstein/Gmelin
3692529
Beilstein Reference
4-02-00-00094
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
2C2H3O2.Co
Formula mass
177.02
Melting point, °C
297-299
Density
1.7755 g/cm3 (20 C)
Solubility in water
readily soluble

Hazards and Protection.
Storage
Cool, dry location. Tightly sealed container.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.
Respirators
NIOSH approved respirator with dust/mist filter.
Small spills/leaks
Sweep up and place in a suitable clean, dry containers for reclamation or disposal. Keep unnecessary people away.
Stability
Stable at normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Toxic and hazardous fumes of cobalt and oxides of carbon.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use agent most appropriate to extinguish fire.
Fire potential
Not flammable tetrahydrate
Combustion products
Toxic cobalt oxide fumes may form in fire.

Health.
Exposure limit(s)
IDHL: 20 mg/m3
Carcinogin
G-A3, I-2B
Exposure effects
Administration of cobalt chloride to pregnant rats in doses up to 100 mg/kg/day did not produce teratogenicity or fetotoxicity. <br>CASE REPORT - A 31-year-old woman with severe cobalt-induced pulmonary fibrosis delivered a normal full term infant. Throughout the pregnancy, supplemental oxygen was required during exercise due to deterioration of respiratory capacity. Inhalation exposureor respiratory disease is present.
   Ingestion
Ingestion or inhalation of cobalt causes nausea, vomiting, diarrhea, and colicky abdominal pain.
   Inhalation
An interstitial fibrotic pulmonary process has been described among hard metal workers and diamond polishers.
   Skin
May cause irritation.
   Eyes
May cause severe irritation and possible corneal damage.

First aid
 
   Ingestion
Give large amounts of water; induce vomiting.
   Inhalation
Move to fresh air; if breathing has stopped, begin artificial respiration.
   Skin
Wash with soap and water.
   Eyes
Flush with water for at least 15 min.

Transport.
USCG CHRIS Code
CBA