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HomeProduct name listStannous pyrophosphate

Stannous pyrophosphate

Synonym(s):Stannous pyrophosphate

  • CAS NO.:15578-26-4
  • Empirical Formula: O7P2Sn2
  • Molecular Weight: 411.36
  • MDL number: MFCD00167376
  • EINECS: 239-635-5
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-10-24 21:11:45
Stannous pyrophosphate Structural

What is Stannous pyrophosphate?

Chemical properties

White Solid

Chemical properties

Stannous pyrophosphate, Sn2P2O7, sp gr 4.009 at 16 °C (60.8 °F), is an amorphous white powder, decomposing at above 400 °C. It is insoluble in water and soluble in concentrated mineral acids and sodium pyrophosphate.

The Uses of Stannous pyrophosphate

Tin(II) Pyrophosphate inhibit the formation of volatile sulphur compounds (VSC).

The Uses of Stannous pyrophosphate

Tin(II) pyrophosphate is used to inhibit the formation of volatile sulfur compounds. Further, it is used for cyanide-free tin coating.

Production Methods

It is prepared from stannous chloride and sodium pyrophosphate, and used as a caries preventative in toothpaste and as a diagnostic aid in radioactive bone scanning and red-blood-cell labeling.

brand name

TechneScan PYP (Mallinckrodt).

Properties of Stannous pyrophosphate

Melting point: >400°C (dec.)
Density  4,01 g/cm3
storage temp.  Refrigerator
solubility  insoluble in H2O; soluble in concentrated acid solutions
form  Powder
color  White
Specific Gravity 4.01
Water Solubility  Insoluble in water.
Merck  14,8788
Exposure limits ACGIH: TWA 2 mg/m3
NIOSH: IDLH 100 mg/m3; TWA 2 mg/m3
CAS DataBase Reference 15578-26-4(CAS DataBase Reference)
EPA Substance Registry System Diphosphoric acid, tin(2+) salt (1:2) (15578-26-4)

Safety information for Stannous pyrophosphate

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P271:Use only outdoors or in a well-ventilated area.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352:IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for Stannous pyrophosphate

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