Silver chromate

  • Chromic acid, disilver(1+) salt
  • Chromium silver oxide
  • Silver chromate(VI)
  • C.I. 77825
Formula
Ag2CrO4
Structure
Description
Black solid.

Registry Numbers and Inventories.
CAS
7784-01-2
EC (EINECS/ELINCS)
232-043-8
UN (DOT)
1479
Merck
12,8653
Beilstein/Gmelin
189998 (G)
Canada DSL/NDSL
NDSL
US TSCA
Listed
Korea ECL
Listed

Properties.
Formula
Ag2CrO4
Formula mass
331.73
Boiling point, °C
1550
Density
5.536 g/cm3 (25 C)

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container.
Handling
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Store protected from light. Use only in a chemical fume hood.
Protection
Eyes: Wear chemical goggles. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear a chemical apron.
Respirators
A NIOSH/MSHA approved air purifying dust or mist respirator or European Standard EN 149.
Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container.
Stability
No data.
Incompatibilities
Strong reducing agents, alcohols, strong acids.

Fire.
Fire fighting
Small Fires: Use water. Do not use dry chemicals or foams. carbon dioxide or Halon may provide limited control. Large Fires: Flood fire area with water from a distance.
Fire potential
These substances will accelerate burning when involved in a fire.
Hazards
May explode from heat or contamination. May react explosively with hydrocarbons (fuels). May ignite combustibles.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure limit(s)
0.01 mg/m3 TLV
Carcinogin
G-A1, I-1, N-1, CP65
Exposure effects
   Ingestion
Causes gastrointestinal irritation with nausea, vomiting and diarrhea.
   Inhalation
Causes respiratory tract irritation.
   Skin
Causes skin irritation.
   Eyes
Causes eye irritation.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number
1479
Response guide
Hazard class
5.1
Packing Group
I; II; III
 
USCG CHRIS Code
CCD