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Sodium acid Pyrophosphate Extra Pure
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Sodium Acid Pyrophosphate Extra Pure is a high-quality, white granular or powdery inorganic chemical widely used as a leavening agent (E450), buffering agent, and sequestrant in food processing, laboratory applications, and chemical manufacturing. It maintains acidity, controls pH, and binds metal ions to improve stability and quality in various products. This compound is stable under normal conditions but should be stored dry and away from incompatible substances to preserve its purity and effectiveness. Handling precautions are essential to prevent irritation from dust exposure.
Description
Sodium acid Pyrophosphate Extra Pure
PRIMARY USES
Analytical Reagent & Laboratory Applications:
- Used as a buffering agent in various chemical analyses and reactions.
- Acts as a sequestrant to bind metal ions in laboratory preparations.
- Utilized in biochemical assays requiring pH control and metal chelation.
Food Industry:
- Functions as a leavening agent (E450) in baking powders and processed foods.
- Acts as an acidity regulator to maintain desired pH levels in food products.
- Serves as a sequestrant to prevent discoloration and texture changes by binding metal ions.
Pharmaceutical & Cosmetic Industry:
- Used as a pH stabilizer and buffering agent in pharmaceutical formulations.
- Acts as a dispersing and stabilizing agent in cosmetics to maintain product consistency.
SECONDARY USES
Chemical Manufacturing:
- Serves as a builder and water softener in detergent formulations.
- Used in textile industry for bleaching, dyeing, and improving fabric quality.
- Employed in ceramics and glass production to influence setting and melting characteristics.
Water Treatment:
- Functions as a chelating agent to sequester calcium and magnesium ions in water softening processes.
PRODUCT KEY FEATURES
-
Basic Identification Attributes
- Chemical Name: Sodium Acid Pyrophosphate
- CAS Number: 7758-16-9
- HS Code: 2836.40.00
- Molecular Formula: Na₂H₂P₂O₇
- Synonyms:
- Acid sodium pyrophosphate
- Sodium acid pyrophosphate
-
Physical & Chemical Properties
- Physical State: White granular or powder solid
- Color & Odor: White, odorless
- Melting Point: Decomposes at approximately 300 °C
- Density/Specific Gravity: Approximately 2.43 g/cm³
- Solubility:
- Soluble in water
- Insoluble in ethanol and ether
- pH Level: Acidic aqueous solution, typically between pH 3.5 and 4.5 (1% solution)
- Vapor Pressure & Volatility: Not volatile
- Flash Point: Not applicable (non-flammable)
- Autoignition Temperature: Not applicable
- Viscosity: Not applicable
-
Safety & Hazard Attributes
- Hazard Class (GHS Classification):
- Causes skin and eye irritation (Category 2)
- NFPA Ratings:
- Health: 2
- Flammability: 0
- Reactivity: 0
- Exposure Limits:
- No specific OSHA PEL or ACGIH TLV established
- Reactivity:
- Stable under normal conditions
- Reacts with strong bases and acids, releasing heat
-
Storage & Handling Attributes
- Storage Conditions:
- Store in a cool, dry, and well-ventilated area
- Keep container tightly closed to prevent moisture uptake and contamination
- Incompatible Materials:
- Strong bases and acids
- Moisture (hygroscopic, prone to caking)
- Container Type:
- Plastic, polyethylene, or sealed metal drums
- Shelf Life & Expiration Date:
- Stable for several years if stored under recommended conditions
- Special Handling Requirements:
- Use personal protective equipment including gloves, goggles, and dust mask
- Avoid inhaling dust and direct contact with skin or eyes
-
Regulatory & Compliance Attributes
- Regulatory Status:
- Approved as a food additive (E450) by FDA, EFSA, and other global agencies
- Listed in REACH, OSHA, and EPA chemical inventories
- Transportation Restrictions:
- Not classified as hazardous for transportation purposes
- Waste Disposal Method:
- Dispose of in accordance with local environmental regulations
- Classified as non-hazardous waste
-
Environmental & Health Impact
- Ecotoxicity:
- Exhibits low toxicity to aquatic organisms
- Persistence in Environment:
- Readily soluble and disperses easily in water
- Carcinogenicity/Mutagenicity:
- Not classified as carcinogenic or mutagenic
- Biodegradability:
- Inorganic compound; does not biodegrade but poses minimal environmental risk
SAFETY HANDLING PRECAUTIONS
SAFETY PRECAUTIONS
Personal Protective Equipment (PPE):
- Wear chemical-resistant gloves (e.g., nitrile or butyl rubber).
- Use safety goggles or a face shield to protect eyes.
- Wear lab coat or protective clothing.
- Use a suitable dust mask or respirator if airborne dust is present.
Handling:
- Handle only in well-ventilated areas.
- Avoid contact with skin, eyes, and clothing.
- Do not inhale dust.
- Wash hands thoroughly after handling.
Storage:
- Store in tightly sealed containers to prevent moisture absorption.
- Keep in a cool, dry, and well-ventilated location.
- Avoid contact with incompatible materials such as strong bases, acids, and moisture.
FIRST AID MEASURES
Inhalation:
- Move affected person to fresh air immediately.
- Seek medical attention if breathing difficulties occur.
Skin Contact:
- Rinse affected area thoroughly with soap and water.
- Remove contaminated clothing promptly.
- Seek medical advice if irritation persists.
Eye Contact:
- Rinse eyes immediately with plenty of water for at least 15 minutes.
- Hold eyelids open while rinsing.
- Seek immediate medical attention.
Ingestion:
- Rinse mouth with water.
- Do not induce vomiting unless directed by medical personnel.
- Seek medical attention if symptoms develop.
FIRE FIGHTING MEASURES
Flammability:
- Non-flammable solid.
Extinguishing Media:
- Use water spray, dry chemical, carbon dioxide (COâ‚‚), or foam extinguishers.
Hazardous Combustion Products:
- May produce phosphorus oxides if strongly heated.
Firefighter Protection:
- Wear full protective gear and self-contained breathing apparatus (SCBA).
- Avoid inhaling fumes or combustion products.
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