Sodium Acid Pyrophosphate, Sodium Pyrophosphate, CAS NO.: 7722-88-5

Alias: sodium pyrochemical
formula: Na4P2O7
CAS NO.: 7722-88-5
Characteristics: White powder, easily soluble in water, insoluble in alcohol, relative density 2.45, melting point 890°C, aqueous solution is weakly alkaline, easily deliquescent in the air

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Description

Overview of Sodium Pyrophosphate
Alias: sodium pyrochemical
Formula: Na4P2O7
CAS NO.: 7722-88-5
Characteristics: White powder, easily soluble in water, insoluble in alcohol, relative density 2.45, melting point 890°C, aqueous solution is weakly alkaline, easily deliquescent in the air, aqueous solution is relatively stable at 70°C, and will be hydroly zed into disodium hydrogen phosphate when boiled.

Application of Sodium Pyrophosphate
In industry, it is used as a washing aid, paper bleaching, and electroplating industry;

In food processing, it is used as a quality improver, emulsifying and dispersing agent, buffering agent, chelating agent, etc. It has the properties of condensed phosphate, chelating, and dispersing effects. Obviously, it can resist flocculation; it can prevent fat oxidation and casein thickening. When the pH value is high, it has the effect of inhibiting food spoilage and fermentation. Mainly used in the processing of meat and aquatic products, it can improve water holding capacity, keep meat fresh and tender, and stabilize natural pigments. It can also be used in starch manufacturing, etc., and is often used in combination with other condensed phosphates. Sodium pyrophosphate is generally added at 0.5-3‰ in food processing, and the maximum addition amount in aquatic product processing is 3%.

Food grade sodium pyrophosphate decahydrate (tested according to GB1886.339-2021)

Test items	Standard value	Test data	Test judgement
Appearance	White crystal or powder	White powder	qualified
(Na4P2O7.10H20) content w/%	≥98	99.5	qualified
Loss on ignition (Na4P2O7)w/%	38~42	40.5	qualified
Water insoluble matter w/%	≤0.2	<0.03	qualified
PH value (10g/L solution)	9.9-10.7	10.27	qualified
orthophosphate	Pass inspection	Pass inspection	qualified
Fluorine(F) mg/kg	≤50	10.1	qualified
Lead(Pb)mg/kg	≤4	<4	qualified
Arsenic (As) mg/kg	≤3	<3	qualified
Heavy metals (calculated as Pb) mg/kg	≤10	<10	qualified

Food grade anhydrous sodium pyrophosphate (tested according to GB1886.339-2021)

Test items	Standard value	Test data	Test judgement
Appearance	White crystal or powder	White powder	qualified
Contentw/%	96.5-100.5	98.5	qualified
Loss on ignition (Na4P2O7)w/%	≤0.5	0.1	qualified
Water insoluble matter w/%	≤0.2	<0.1	qualified
PH value (10g/L solution)	9.9-10.7	10.4	qualified
orthophosphate	Pass inspection	Pass inspection	qualified
Fluorine(F) mg/kg	≤50	4.5	qualified
Lead(Pb)mg/kg	≤4	2.8	qualified
Arsenic (As) mg/kg	≤3	0.4	qualified
Heavy metals (calculated as Pb) mg/kg	≤10	<10	qualified

Company Profile
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.
The company has a professional technical department and Quality Supervision Department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.

If you are looking for high-quality Sodium Pyrophosphate, please feel free to contact us or click on the needed products to send an inquiry.

Payment Methods of Sodium Pyrophosphate
L/C, T/T, Western Union, Paypal, Credit Card etc.

Shipment of Sodium Pyrophosphate
It could be shipped by sea, by air, or by reveal ASAP as soon as repayment receipt.

Package of Sodium Pyrophosphate
We have many different kinds of packaging, which depend on amount.
Vacuum packaging, regular packaging is 25kg/bag, packaging and markings can be customized..

FAQ

Q1
Is sodium pyrophosphate harmful to humans?
Answer: Sodium pyrophosphate itself is not directly toxic to the human body, but if taken in too much, it may be harmful to human health. Excessive intake of sodium pyrophosphate may affect the body's absorption of calcium, leading to hypocalcemia, and may also increase the metabolic burden on the kidneys and cause problems such as kidney stones. Therefore, certain usage specifications and dosages need to be followed when using sodium pyrophosphate.

Q2
What is the shelf life of sodium pyrophosphate?
Answer: The shelf life of sodium pyrophosphate is usually about two years, but the specific shelf life may vary depending on production conditions, storage environment and other factors. When storing, sodium pyrophosphate should be kept in a dry, cool, ventilated place, away from moisture and direct sunlight.

Q3
Can sodium pyrophosphate be frozen?
Answer: Sodium pyrophosphate can be frozen, but it should be used as soon as possible after thawing to avoid quality degradation caused by long-term storage.

Q4
Can sodium pyrophosphate still be used after its expiration date?
Answer: It is not recommended to use sodium pyrophosphate after its expiration date. Although it may still have certain chemical properties, expiration may cause its performance to decrease or create instability factors, thereby affecting its effectiveness or safety.

Q5
What is the complexing ability of sodium pyrophosphate?
Answer: Sodium pyrophosphate has strong complexing ability and can form stable complexes with a variety of metal ions. This complexing ability makes it play an important role in many fields, such as corrosion inhibitors, chelating agents, etc.

Q6
What should we pay attention to when using sodium pyrophosphate?
Answer: When using sodium pyrophosphate, you need to pay attention to controlling its addition amount to avoid food safety risks caused by excessive use. At the same time, since sodium pyrophosphate is corrosive and irritating to a certain extent, you need to pay attention to safety when using it and comply with relevant safety operating procedures.

Q7
How is sodium pyrophosphate stored?
Answer: Sodium pyrophosphate should be stored in a dry, cool, ventilated place, away from direct sunlight and high temperatures. At the same time, contact with acids, oxidants and other substances should be avoided to prevent chemical reactions.

Q8
Does sodium pyrophosphate have any impact on the environment?
Answer: If sodium pyrophosphate is discharged into the environment without proper treatment, it may have certain effects on water bodies and soil. Therefore, when using and handling sodium pyrophosphate, it is necessary to comply with relevant environmental regulations to ensure that it does not cause adverse effects on the environment.