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Sodium Acetate Trihydrate
Sodium Acetate Trihydrate is a white crystalline solid that is the hydrated form of sodium acetate. It is highly soluble in water and has a mildly alkaline pH in solution. Widely used in chemical, pharmaceutical, food, and textile industries, sodium acetate trihydrate serves as a buffering agent, pH regulator, and preservative. Its ability to stabilize pH and act as a neutralizing agent makes it valuable in various industrial and laboratory applications. Additionally, it is used for heat packs due to its exothermic crystallization properties.
Sodium Acetate Trihydrate
Primary Uses
- Food Industry
- Acts as a food additive (E262) used as a flavoring agent and preservative in snack foods, condiments, and pickled products.
- Serves as an acidity regulator to maintain pH stability in processed foods and beverages.
- Pharmaceuticals
- Used as a buffering agent in pharmaceutical formulations to stabilize pH.
- Employed in oral rehydration solutions and intravenous fluids as a sodium source and pH balancer.
- Chemical Industry
- Functions as a buffering agent in chemical processes and analytical laboratories.
- Used as a neutralizing agent in textile dyeing and printing to control pH during processing.
- Heating Pads and Hand Warmers
- Utilized in reusable heat packs and hand warmers due to its exothermic crystallization from supersaturated solutions.
- Laboratory and Analytical Applications
- Used as a buffer in electrophoresis, chromatography, and various biochemical assays.
Secondary Uses
- Leather Industry
- Employed in tanning processes to adjust pH and improve product quality.
- Concrete Sealing and Corrosion Control
- Used in certain concrete admixtures to improve curing and prevent corrosion.
- Textile Industry
- Applied in printing pastes and finishing to maintain alkaline conditions.
- Cosmetics
- Occasionally used in cosmetic formulations as a pH adjuster and buffering agent.
1. Basic Identification Attributes
- Chemical Name (IUPAC): Sodium acetate trihydrate
- Common/Trade Name: Sodium Acetate Trihydrate
- CAS Number: 6131-90-4
- HS Code: 29152900
- Synonyms: Acetic acid sodium salt trihydrate, Sodium ethanoate trihydrate
2. Physical & Chemical Properties
- Physical State: Crystalline solid
- Color & Odor: White crystals; slight vinegar-like odor possible
- Melting Point: Approx. 58°C (dehydrates)
- Solubility: Highly soluble in water (~76 g/100 mL at 20°C)
- pH (1% aqueous solution): 8.5–9.0 (alkaline)
- Density: Approx. 1.45 g/cm³
3. Safety & Hazard Attributes
- GHS Classification: Generally regarded as non-hazardous; may cause mild skin or eye irritation
- Toxicity: Low toxicity; ingestion in large quantities may cause gastrointestinal upset
- Exposure Limits: No specific occupational exposure limits; follow general safety practices
4. Storage & Handling Attributes
- Storage Conditions: Store in a cool, dry, well-ventilated area away from moisture and incompatible materials
- Container Type: Supplied in sealed polyethylene or kraft paper bags
- Shelf Life: Stable for 2–3 years if stored properly
- Handling Precautions: Avoid dust generation; use gloves and eye protection when handling powder
5. Regulatory & Compliance Attributes
- Complies with food-grade standards where applicable (FCC)
- Meets pharmaceutical and chemical industry purity requirements
- Complies with relevant environmental and safety regulations (REACH, OSHA)
6. Environmental & Health Impact
- Biodegradability: Readily biodegradable and environmentally benign
- Ecotoxicity: Low toxicity to aquatic organisms at typical use concentrations
- Bioaccumulation: Not significant
Safety Handling Precautions
- PPE Required: Gloves, goggles, and dust mask recommended when handling powder
- Handling Guidelines: Use in well-ventilated areas; avoid inhaling dust and direct contact with eyes and skin
- Storage Measures: Keep containers tightly closed and stored in a dry environment
First Aid Measures
- Inhalation: Move to fresh air; seek medical attention if breathing difficulties occur
- Skin Contact: Wash thoroughly with soap and water; seek medical advice if irritation develops
- Eye Contact: Rinse eyes with plenty of water for at least 15 minutes; seek medical attention if irritation persists
- Ingestion: Rinse mouth; do not induce vomiting; seek medical help if large amounts ingested
Firefighting Measures
- Fire Hazards: Non-flammable and non-combustible
- Extinguishing Media: Use water spray, foam, dry chemical, or CO₂ for surrounding fires
- Special Precautions: Wear protective equipment and self-contained breathing apparatus if exposure to decomposition products occurs
- Hazardous Combustion Products: May emit sodium oxides and acetic acid vapors on decomposition
Related products
Calcium Propionate
Calcium Propionate is the calcium salt of propionic acid, appearing as a white, crystalline powder or granules with a slightly salty taste and low odor. It is highly soluble in water and used primarily as a food preservative and mold inhibitor. Calcium Propionate inhibits the growth of mold, bacteria, and fungi, making it especially valuable in baked goods, dairy products, and animal feed to extend shelf life and prevent spoilage. It also finds application in pharmaceuticals and cosmetics as a preservative and antimicrobial agent.
Carnauba Wax Prime Yellow
Carnauba Wax Prime Yellow, also known as Type 1 or Prime Yellow Grade, is the highest quality and purest form of carnauba wax derived from the leaves of the Copernicia cerifera palm tree, native to Brazil. It is a natural, vegetable-based wax prized for its exceptional hardness, high gloss, high melting point, and emulsification properties. Prime Yellow grade represents the finest classification, characterized by its light yellow to pale amber color, low impurities, and superior film-forming characteristics. It is obtained through a meticulous process of harvesting, drying, and processing the palm leaves to extract the waxy coating, which is then refined and graded. Carnauba Wax is often referred to as the "Queen of Waxes" due to its unique combination of properties unmatched by synthetic alternatives. Technical grade Carnauba Wax Prime Yellow is used across numerous industries for its ability to impart gloss, hardness, slip resistance, and moisture barrier properties. It is not intended for direct food consumption but is widely used in food-contact applications such as coatings and packaging.
Fumaric Acid
Fumaric Acid is a naturally occurring dicarboxylic acid characterized by its white crystalline powder form and a slightly acidic taste. It is an unsaturated organic acid with the chemical formula C4H4O4 and is an intermediate in the Krebs cycle in biological systems. Fumaric Acid is commonly found in various plants and fungi and is commercially produced by isomerization of maleic acid or by fermentation. It is widely used in the food, pharmaceutical, chemical, and polymer industries due to its acidulant, antioxidant, and crosslinking properties.
Malic Acid
Malic Acid is a naturally occurring dicarboxylic acid found in many fruits, particularly apples, and is commonly used as a food additive, flavor enhancer, and acidulant. It is available in crystalline or powder form and has a strong, tart taste. Commercially, it is produced synthetically or extracted from natural sources. Malic Acid exists in two isomeric forms: L-malic acid (naturally occurring and biologically active) and DL-malic acid (synthetic racemic mixture). It is highly soluble in water and widely used in food, beverage, cosmetics, and pharmaceutical industries.
Potassium Sorbate FCC
Potassium Sorbate FCC (Food Chemical Codex) is the potassium salt of sorbic acid, a white crystalline powder widely used as a food preservative. It effectively inhibits the growth of molds, yeasts, and some bacteria, thus extending the shelf life of various food and beverage products. Known for its low toxicity and minimal impact on flavor, Potassium Sorbate is a preferred preservative in food, cosmetics, and pharmaceutical industries.
Sodium Benzoate
Sodium Benzoate is the sodium salt of benzoic acid, appearing as a white, crystalline powder that is highly soluble in water. It is widely used as a preservative due to its antimicrobial properties, especially effective against yeast and bacteria in acidic conditions. Sodium Benzoate is commonly employed in the food, beverage, pharmaceutical, and cosmetic industries to extend shelf life and maintain product quality. It meets food-grade and pharmaceutical-grade purity standards, ensuring safety for consumption and topical use.
Sodium Formate Food Grade
Sodium Formate Food Grade is the sodium salt of formic acid, typically available as a white crystalline powder or granules. It is widely used in various industrial applications due to its properties as a buffering agent, de-icing agent, and reducing agent. Sodium Formate is valued for its effectiveness in textile dyeing, leather tanning, and as a corrosion inhibitor in oil and gas drilling fluids.
Sodium Metabisulphite
Sodium Metabisulphite is a white crystalline powder widely used as an antioxidant, disinfectant, and preservative. It dissolves readily in water, releasing sulfur dioxide, which acts as a powerful antimicrobial and antioxidant agent. This chemical finds broad applications in food processing, water treatment, pharmaceuticals, and industrial manufacturing to prevent spoilage, control microbial growth, and protect equipment from corrosion.
