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Disodium pytophosphate

Basic information Safety Supplier Related

Disodium pytophosphate Basic information

Product Name:
Disodium pytophosphate
Synonyms:
  • DisodiuM pytophospha
  • TwosodiuM pyrophosphatetwo hydrogen
  • Amyloid Precursor Protein β, Secreted
  • ANTI-DSPP (N-TERM) antibody produced in rabbit
  • Dentin sialophosphoprotein
  • SodiuM pyrophosphate dibasic practical grade
  • SODIUM PYROPHOSPHATE DIBASIC BIOULTR
  • Food Grade Sodium Acid Pyrophosphate
CAS:
7758-16-9
MF:
H2Na2O7P2
MW:
221.94
EINECS:
231-835-0
Product Categories:
  • Food Additives
  • Inorganics
Mol File:
7758-16-9.mol
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Disodium pytophosphate Chemical Properties

Melting point:
decomposes 220℃ [MER06]
Density 
(hexahydrate) 1.86
storage temp. 
-70°C
solubility 
H2O: 0.1 M at 20 °C, clear, colorless
form 
white powder
PH
3.5-4.5 (20℃, 0.1M in H2O, freshly prepared)
Water Solubility 
Fully miscible in water. Insoluble in alcohol and ammonia.
λmax
λ: 260 nm Amax: 0.11
λ: 280 nm Amax: 0.09
Merck 
13,8643
Stability:
Stable.
CAS DataBase Reference
7758-16-9(CAS DataBase Reference)
EPA Substance Registry System
Disodium diphosphate (7758-16-9)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36
Safety Statements 
24/25-26
WGK Germany 
2
RTECS 
UX6475000
TSCA 
Yes
Hazardous Substances Data
7758-16-9(Hazardous Substances Data)

MSDS

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Disodium pytophosphate Usage And Synthesis

Chemical Properties

white powder

Uses

Chiefly in baking powders.

Uses

Sodium Pyrophosphate is a leavening agent, preservative, sequestrant, and buffer which is mildly acidic with a ph of 4.1. It is moderately soluble in water, with a solubility of 15 g in 100 ml at 25°c. It is used in doughnuts and biscuits for its variable gas release rate during the mixing, bench action, and baking process. It is used in baking powder as a leavening agent. It is used in canned fish products to reduce the level of undesired struvite crystals (magnesium ammonium phosphate hexahydrate) by complexing the magnesium. It is used to sequester metals in processed potatoes. It is also termed sapp, sodium acid pyrophosphate, acid sodium pyrophosphate, disodium diphosphate, and disodium dihydrogen pyrophosphate.

Safety Profile

Poison by intravenous route. Moderately toxic by ingestion and subcutaneous routes. An irritant to skin, eyes, and mucous membranes. When heated to decomposition it emits toxic fumes of POx, and Na2O.

Disodium pytophosphate Preparation Products And Raw materials

Preparation Products

Raw materials

Disodium pytophosphate Supplier

future industrial shanghai co., ltd
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