structure of 7758-16-9

Disodium Pytophosphate(CAS 7758-16-9)

CAS No.: 7758-16-9 Brand: MolBest
M. Ft.: H2Na2O7P2 Cat. No: G2892392
M. Wt.: 221.94 MDL: MFCD00014246
Storage: Store in a cool,dry area. Use: For laboratory research use only
HS CODE: 2835399000
Purity Grade Package Stock Price Quantity
96%
Documents:COASDS
RG 25G In Stock 3 USD
96%
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RG 100G In Stock 3 USD
96%
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RG 500G In Stock 3 USD
96%
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RG 2.5KG In Stock 26 USD
96%
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RG 25KG In Stock 262 USD
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Applications of 7758-16-9

Disodium diphosphate finds extensive use across multiple industries:

  • Food Industry: Used as an emulsifier, stabilizer, and pH regulator in processed foods, dairy products, and baked goods.
  • Water Treatment: It helps in softening water and preventing scale formation.
  • Pharmaceuticals: Acts as a buffering agent in drug formulations and intravenous fluids.
  • Cleaning Agents: Enhances cleaning efficiency by breaking down grease and dirt.

Physical and chemical properties of 7758-16-9

Decomposition

WHEN HEATED TO DECOMPISITION IT EMITS TOXIC FUMES OF PHOSPHORUS OXIDES AND Na2O.

Density

Density: 1.86 /Hexahydrate/

Exact Mass

221.90700

LogP

0.06480

Melting Point

988ºC

Merck

13,8643

Molecular Formula

H2Na2O7P2

Molecular Weight

221.93900

pH

Between 3,7 and 5,0 (1 % solution)

PSA

149.57000

Solubility

Sol in water

Stability

Stable.

Storage condition

-70°C

Vapour Pressure

0Pa at 20℃

Water Solubility

H2O: 0.1 M at 20 °C, clear, colorless

λmax

λ: 260 nm Amax: 0.11
λ: 280 nm Amax: 0.09

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Download SDS of 7758-16-9

Pictograms

Signal Word

Warning

Hazard Statements

H302 Harmful if swallowed
H319 Causes serious eye irritation

Safety Data Sheet

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