Product Identification

Product Name

Cobalt(II) acetate tetrahydrate

Synonyms

Bis(acetato)tetraquacobalt
Cobaltous acetate tetrahydrate

CAS

6147-53-1

Formula

C4H14CoO8

Molecular Weight

249.08

EINECS

200-755-8

RTECS

AG3325000

RTECS Class

Tumorigen; Mutagen; Primary Irritant

Merck

12,2494

Beilstein/Gmelin

3731397

Beilstein Reference

4-02-00-00094

EC Class

harmful, carcinogenic, sensitizing, dangerous for the environment

Physical and Chemical Properties

Appearance

red monoclinic crystals

Solubility in water

380 g/L (25 C)

Melting Point

140

Density

1.7031 g/cm3 (15.7 C)

First Aid Measures

Ingestion

Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. Get medical aid. DO NOT use mouth-to-mouth respiration.

Skin

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.

Eyes

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage

Storage

Keep away from heat and flame. Keep away from sources of ignition. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances.

Handling

Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with skin and eyes. Keep container tightly closed. Avoid ingestion and inhalation.

Hazards Identification

Inhalation

Causes delayed lung injury. Causes respiratory tract irritation. May cause asthmatic attacks due to allergic sensitization of the respiratory tract. May cause asthma and shortness of breath.

Skin

Causes skin irritation. Prolonged and/or repeated contact may cause irritation and/or dermatitis. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material.

Eyes

Causes eye irritation.

Ingestion

May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed. May cause allergic reaction. May cause flushing of the face and ears, mild hypotension, ringing in the ears, and nerve deafness. Ingestion of beer with cobalt additives may cause heart

EC Risk Phrase

R 49 22 36/38 42

EC Safety Phrase

S 22 53 45

UN (DOT)

3335

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.

Respirators

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Exposure Effects

Cobalt compounds may cause cancer based upon animal studies.

Exposure limit(s)

0.02 mg/m3 TLV

Poison Class

2 (Very strong toxins)

Fire Fighting Measures

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. Non-combustible, substance itself does not burn but may decompose upon heating to produce irritating, corrosive and/or toxic fumes. Extinguishing media: Substance is noncombustible; use agent most appropriate to extinguish surrounding fire.

Accidental Release Measures

Small spills/leaks

Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Disposal Code

15

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizers. .

Decomposition

Acrid smoke and fumes, oxides of cobalt.

Transport Information

UN Number

3335

HS Code

2915 23 00