Sodium phosphomolybdate hydrate

  • Molybdophosphoric acid sodium salt
  • Phosphomolybdic acid sodium salt hydrate
Formula
Na3PO4 . 12MoO3 . xH2O
Structure
Description
Yellow cubic crystals.
Uses
Used as a reagent in chemical analysis.

Registry Numbers and Inventories.
CAS
1313-30-0
EC (EINECS/ELINCS)
215-206-8
17 26 27 36/37/39
RTECS
WD6600000
RTECS class
Other
UN (DOT)
3084
Merck
13,8738
Beilstein/Gmelin
456986 (G)
Austrailia AICS
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
Mo12Na3O40P.xH2O
Formula mass
1891.2
Melting point, °C
98
Density
2.83 g/cm3 (25 C)
Solubility in water
Very soluble

Hazards and Protection.
Storage
Keep tightly closed. Keep away from combustible materials, heat, sparks, and open flame.
Protection
Wear self-contained breathing apparatus, rubber boots, and heavy rubber gloves.
Respirators
Government approved respirator.
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.
Incompatibilities
Strong reducing agents, Organic materials, Finely powdered metals.
Decomposition
Nature of decomposition products not known.

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.
Fire potential
May accelerate combustion.
Hazards
Emits toxic fumes under fire conditions. Contact with other material may cause fire. May accelerate combustion.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
3
 
Flammability
3
 
 
Reactivity
0
 

Health.
Exposure effects
Oxidizing. Corrosive. Contact with combustible material may cause fire. Causes burns.
   Ingestion
May be harmful if swallowed.
   Inhalation
May be harmful if inhaled. Material is extremely destructive to the tissue of the mucous membranes and upper respiratory tract.
   Skin
Causes burns. May be harmful if absorbed through the skin.
   Eyes
Causes burns.

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 breathing becomes difficult, call a physician.
   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.
UN number
3084
Response guide
Hazard class
8
Packing Group
II