Calcium molybdate

  • Calcium molybdate(VI)
  • Calcium molybdenum oxide
Formula
CaMoO4
Structure
Description
White tetragonal crystals
Uses
Substance is used in phosphors and luminescent materials.

Registry Numbers and Inventories.
CAS
7789-82-4
EC (EINECS/ELINCS)
232-192-9
23/24/25 36/37/38
22 26 36/37/39 45
RTECS
EW2975000
RTECS class
Other
UN (DOT)
3288
Merck
12,1728
Beilstein/Gmelin
46117 (G)
Swiss Giftliste 1
G-4024
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
CaMoO4
Formula mass
200.02
Melting point, °C
1520
Density
4.35 g/cm3 (25 C)
Solubility in water
0.35 g/L (18 C)
Refractive index
2.0448
Dielectric constant
20 (25 C)
Thermal expansion
1.04E-5/K

Hazards and Protection.
Storage
Keep tightly closed. Store in a cool dry place.
Protection
Wear appropriate government approved respirator, chemical-resistant gloves, safety goggles, other protective clothing.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
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.
Incompatibilities
Strong oxidizing agents.
Decomposition
Nature of decomposition products not known.

Fire.
Fire fighting
Extinguish using Noncombustible. Use extinguishing media appropriate to surrounding fire conditions. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Fire potential
Non-Combustible
Hazards
Emits toxic fumes under fire conditions.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Poison_Class
3
Exposure effects
Toxic. Toxic by inhalation, in contact with skin and if swallowed. Irritating to eyes, respiratory system and skin.
   Inhalation
Highly toxic, may be fatal if inhaled, swallowed or absorbed through skin. Effects of contact or inhalation may be delayed.
   Skin
Avoid any skin contact. See Inhalation.
   Eyes
See Inhalation.

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 contact, immediately wash skin with soap and copious amounts of water.
   Eyes
In case of contact, immediately flush eyes with copious amounts of water for at least 15 minutes.

Transport.
UN number
3288
Response guide
Hazard class
6.1
Packing Group
III