Disodium pytophosphate CAS 7758-16-9

Synonyms: tetrasodium pyrophosphate decahydrate
TSPP
Molecular Formula: Na₂H₂P₂O₇
Molecular Weight: 201.97
Hazard Class:General cargo
HS Code: 2835399000
Grade:Food Grade 99%
Feed grade 99%

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Model:
7758-16-9
Brand:
bosschem
Code:
7758-16-9

Product Description

What is of Disodium pytophosphate CAS 7758-16-9?

Sodium pyrophosphate, also known as tetrasodium pyrophosphate (TSPP), is an inorganic compound (Na₄P₂O₇) used widely as a buffering, chelating, and emulsifying agent. It is commonly found in the food industry, dental products, and industrial cleaners due to its ability to retain moisture, prevent discoloration, and soften water.

Specification

Item	Food Grade Specification	Feed Grade Specification
Disodium Dihydrogen Pyrophosphate (Na₂H₂P₂O₇) Content, w/% ≥	94.0	93.0 ~ 100.5
Water Insoluble Substances, w/% ≤	0.6	1.0
pH Value (10 g/L aqueous solution)	4.0±0.5	4.0±0.5
Moisture, w/% ≤	—	2.0
Heavy Metals (as Pb), mg/kg ≤	10	—
Fluoride (F), mg/kg ≤	50.0	100
Arsenic (As), mg/kg ≤	3.0	10
Chromium (Cr), mg/kg ≤	—	10
Lead (Pb), mg/kg ≤	2.0	10

Application Scenarios:

Food-Grade SAPP: Controlled Leavening, Preservation, and Color Protection

1. Modern Baking and Frozen Dough: As an acidic component in compound baking powders, slow-speed SAPP ensures that the dough remains stable during refrigeration and transportation, allowing for perfect expansion upon oven heating.

2. Potato Processing: Prevents Discoloration (French Fries/Chips): Food-grade SAPP must be added during the blanching process of frozen French fries. It chelates iron ions in potatoes, preventing them from reacting with chlorogenic acid and causing discoloration (the phenomenon of blackening after cooking), thus maintaining the golden color of the fries.

3. Meat and Seafood Retention: Used in sausages, ham, and canned seafood. Improves the water-holding capacity of meat, reduces moisture loss during processing, and keeps the meat juicy and springy.

4. Instant Noodles and Starch Products: Improves the gluten network, shortens the rehydration time of instant noodles, making them more resistant to overcooking, preventing cloudy broth, and resulting in a chewier texture.

Feed-grade SAPP: Improves palatability (especially for cat food), prevents mold and preserves freshness, regulates acidity

1. "Patency enhancer" for pet food (cat and dog food): Cats are very sensitive to the pH level and phosphate taste of food. SAPP, as an acidic phosphate, is often added to the surface coating (flavoring agent) of cat food pellets, significantly improving palatability and making cats more willing to eat.

2. Feed mold inhibitor and preservative: Due to its weak acidity and ability to chelate metal ions, it can inhibit the growth of mold and bacteria in feed, delay the oxidative rancidity of fats in feed, and thus extend the shelf life of bulk feed.

3. Deodorizing pet excrement: Appropriate addition to pet food can regulate the pH level of animal intestines and urine. By acidifying urine, it can reduce the release of ammonia in cat and dog excrement to a certain extent, thus deodorizing the environment.

4. Mineral Nutrition Supplement and Binder: Provides animals with essential phosphorus (P) and sodium (Na) elements. Simultaneously, during the feed pelleting process, it acts as a quality improver, increasing the hardness and abrasion resistance of the feed pellets and reducing dust.