Zinc phosphate

  • Tribasic zinc phosphate
  • Trizinc bis(orthophosphate
  • Phosphoric acid, zinc salt (2:3)
Formula
Zn3(PO4)2
Structure
Description
Red prisms.
Uses
Substance is used in dental cements.

Registry Numbers and Inventories.
CAS
7779-90-0
EC (EINECS/ELINCS)
231-944-3
36/37/38
RTECS
TD0590000
RTECS class
Other
Merck
12,10284
Beilstein/Gmelin
30692 (G)
Swiss Giftliste 1
G-8317
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
O8P2Zn3
Formula mass
386.11
Melting point, °C
1060
Density
3.998 g/cm3 (15 C)
Solubility in water
Insoluble
Refractive index
1.595

Hazards and Protection.
Storage
Keep tightly closed.
Protection
Wear respirator, chemical safety goggles, 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 oxidizing agents.
Decomposition
Phosphorous oxides, Zinc/zinc oxides.

Fire.
Fire fighting
Extinguish using Water spray. 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
2
 
Flammability
0
 
 
Reactivity
0
 

Health.
Poison_Class
4
Exposure effects
Irritant. Irritating to eyes, respiratory system and skin.
   Ingestion
May be harmful if swallowed.
   Inhalation
Material is irritating to mucous membranes and upper respiratory tract. May be harmful if inhaled.
   Skin
Causes skin irritation. May be harmful if absorbed through the skin.
   Eyes
Causes 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 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.