Cobalt dithiocyanate

  • Cobalt(II) thiocyanate
  • Cobaltous thiocyanate
  • Thiocyanic acid, cobalt(2+) salt
Formula
Co(SCN)2
Structure
Description
Pale brown to yellow brown crystals.
Uses
Used as a humidity indicator.

Registry Numbers and Inventories.
CAS
3017-60-5
EC (EINECS/ELINCS)
221-156-8
20/21/22 32
Merck
13,2475
Beilstein/Gmelin
45686 (G)
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed

Properties.
Formula
C2CoN2S2
Formula mass
175.1
Density
1.955 g/cm3 (25 C)
Solubility in water
507 g/L (25 C)

Hazards and Protection.
Storage
Keep tightly closed. Store in a cool dry place. Handle and store under nitrogen.
Protection
Wear self-contained breathing apparatus, rubber boots, and heavy rubber gloves.
Small spills/leaks
Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.
Stability
Stable at normal temperatures and pressures. Protect from moisture.
Incompatibilities
Oxidizing agents, Acids.
Decomposition
Hydrogen cyanide, Sulfur oxides.

Fire.
Fire fighting
Extinguish using Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Hazards
Emits toxic fumes under fire conditions.
Health
1
 
Flammability
0
 
 
Reactivity
1
 

Health.
Exposure limit(s)
0.02 mg/m3 TLV
Carcinogin
G-A3, I-2B
Exposure effects
Harmful. Harmful by inhalation, in contact with skin and if swallowed. Contact with acids liberates very toxic gas. Target organ(s): Thyroid. Lungs. Readily absorbed through skin.
   Ingestion
Harmful if swallowed.
   Inhalation
Harmful if inhaled. Material may be irritating to mucous membranes and upper respiratory tract.
   Skin
May cause skin irritation. Harmful if absorbed through skin. Readily absorbed through skin.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
   Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
   Skin
In case of skin contact, flush with copious amounts of water for at least 15 minutes. Remove contaminated clothing and shoes. Call a physician.
   Eyes
In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Transport.