Sodium Acid Pyrophosphate
Sodium Acid Pyrophosphate
HS Code : 228353900 | CAS NO. : 7758-16-9
Basic Information:
- Chemical Name: Sodium Acid Pyrophosphate
- Formula: Na₂H₂P₂O₇
- Molecular Weight: 221.94 g/mol
- Appearance: White crystalline powder
- Odour: Odourless
- Taste: Slightly acidic
- Solubility: soluble in water
Packing Details: • 500 gm HDPE Bottle • 1 kg HDPE Bottle• 5 kg HDPE Bag • 10 kg HDPE Bag • 25 kg HDPE woven Bag • 50 kg HDPE woven Bag
Storage & Handling
- Store in a cool, dry, well-ventilated area
- Keep container tightly closed to prevent moisture absorption (hygroscopic)
- Protect from humidity and direct sunlight
- Keep away from strong alkalis and incompatible materials
- Recommended temperature: ambient (below 30°C)
- Avoid dust formation and inhalation
- Use gloves, dust mask, and safety goggles during handling
- Ensure adequate ventilation in working area
- Wash hands thoroughly after handling
Safety
- May cause mild irritation to eyes, skin, and respiratory tract (dust)
- Avoid inhalation of dust
- Avoid contact with eyes and prolonged skin contact
- In case of eye contact: Rinse with water for at least 15 minutes
- In case of ingestion of large quantity: Seek medical advice
- Generally safe when used within prescribed food limits (food grade).
Industry Wise Application
Food Industry Application
- Leavening Agent (Bakery):Acts as the acid component in baking powder, reacting with baking soda to release carbon dioxide, which causes dough to rise and creates a light, airy texture.
- Variable Baking Speed:Tailored grades (fast to slow) allow control over gas release; slow-acting SAPP is used in cakes/muffins to prevent premature rising, while fast-acting types are used in doughnuts.
- Color Stabilizer in Potatoes:Prevents after-cooking darkening and browning in processed potatoes (frozen french fries, hash browns) by chelating iron.
- Moisture Retention & Texture in Meat/Seafood:Used in processed meat, poultry, and fish to retain moisture, improve texture, and reduce purge.
- Struvite Crystal Prevention:Used in canned seafood to prevent the formation of harmless, yet undesirable, struvite crystals (magnesium ammonium phosphate).
- Instant Food Improvement:Used in instant noodles to improve rehydration speed and prevent clumping.
- pH Regulation & Buffering:Acts as a buffering agent in dairy products, beverages, and puddings to maintain a consistent Ph
Industrial & Technical Application
- Water Treatment:Acts as a scale inhibitor and chelating agent to remove hardness ions (calcium, magnesium) and prevent corrosion in water systems.
- Oilfield Drilling:Used as a dispersant in oil well drilling muds to control viscosity.
- Metal Finishing/Cleaning:Used in metal cleaning and phosphatising processes to remove rust and scale, as well as to prepare surfaces for painting.
- Ceramics:Functions as a deflocculant (dispersant) in ceramic production to manage the flow properties of slurries.
- Leather Processing:Removes iron stains on hides during processing.
- Toothpaste:Used as a tartar control agent to prevent the deposition of calcium and magnesium on teeth.
- Slaughtering Aid:Added to scalding water to aid in the removal of hair/scurf in hog slaughter and feathers in poultry processing.
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