Pyrophosphoric acid CAS# 2466-09-3
Pyrophosphoric acid, Promotion Season Now in Store and Free Sample for Testing with Factory Price
- Appearance: Colorless acicular crystal or light yellow viscous liquid
- Assay: 95. 0%min
- Packaging: 25L/Drum.
- Sample: Available
Pyrophosphoric acid : The Complete Guide
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Quality Control of Pyrophosphoric acid
Quality Control & MSDS
Packing of Pyrophosphoric acid
Description of Pyrophosphoric acid
Pyrophosphoric acid, also known under the name diphosphoric acid, is colorless, odorless, hygroscopic and is soluble in water, diethyl ether, and ethyl alcohol. The anhydrous acid has two different forms, which melt at 54.3°C and 71.5°C. It is best prepared by ion exchange from sodium pyrophosphate or by reacting hydrogen sulfide with lead pyrophosphate. When phosphoric acid is dehydrated pyrophosphoric acid is produced as one of the products. When molten pyrophosphoric acid rapidly forms an equilibrium mixture of phosphoric acid, pyrophosphoric acid and polyphosphoric acids. The percentage by weight of pyrophosphoric acid is around 40% and it is difficult to recrystallise from the melt. In aqueous solution pyrophosphoric acid like all polyphosphoric acids hydrolyses and eventually an equilibrium is established between phosphoric acid pyrophosphoric acid and polyphosphoric acids. When highly diluted an aqueous solution of pyrophosphoric acid contains only phosphoric acid.
Pyrophosphoric acid is a medium strong inorganic acid. Anions, salts, and esters of pyrophosphoric acid are called pyrophosphates.
While pyrophosporic acid is corrosive, it is not known to be otherwise toxic.
Basic Info of Pyrophosphoric acid
Appearance & Physical State
colorless needle crystal or yellow viscous Liquid
Keep tightly closed. Store in a cool dry place.
P280; P305 + P351 + P338; P310
What is Pyrophosphoric acid ?
With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is Pyrophosphoric acid which has developed particularly rapidly in recent years. Do you know about Pyrophosphoric acid?
The official answer:Pyrophosphoric acid is an inorganic compound with the chemical formula H4P2O7. It is a colorless viscous liquid that crystallizes after a long period and is colorless and glassy. Pyrophosphoric acid has strong coordination, used as catalyst and concealing agent, etc.; used as catalyst, metal refining, stabilizer of organic peroxide. Used in the copper plating process to adjust the pH value of plating solution, also used in another plating.
What’s the application of Pyrophosphoric acid?
Used as a catalyst and concealing agent, etc.; used as catalyst, metal refining, stabilizer of organic peroxide. Used in the copper plating process to adjust the pH value of plating solution, also used in another plating.
Used as analytical reagents, such as as a masking agent, for the preparation of organic phosphate ester. Used in the copper plating process to adjust the pH of plating solution, also used in another plating.
Moisture retention agent, quality improver, pH adjuster, metal chelating agent.
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