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Sodium Sulphite (Blue)
Sodium Sulphite Blue is a white to bluish-white crystalline powder with the chemical formula Na₂SO₃. The “Blue” grade indicates a specific industrial quality often containing minor additives or impurities, used primarily in water treatment and chemical industries. It acts as an effective oxygen scavenger, reducing agent, and preservative. This 25kg packaged product is highly soluble in water, forming alkaline solutions, and is widely used in pulp and paper, water treatment, textile, and photographic industries.
Sodium Sulphite (Blue)
Primary Uses
- Water Treatment
- Oxygen Scavenger: Removes dissolved oxygen from boiler feed water, preventing corrosion in steam and power plants.
- Wastewater Treatment: Neutralizes chlorine and chloramine residuals in drinking water and wastewater.
- Pulp & Paper Industry
- Dechlorination Agent: Removes residual chlorine from bleached pulp.
- Reducing Agent: Used in chemical pulping to protect fibers.
- Textile Industry
- Bleaching Agent: Used for bleaching cotton and wool fibers.
- Dyeing: Acts as an antioxidant in dyeing processes.
- Photographic Industry
- Preservative: Serves as a preservative in photographic developers.
- Chemical Industry
- Sulfur Dioxide Source: Releases SO₂ upon acidification, used in various chemical syntheses.
- Antioxidant: Prevents oxidation in chemical processes.
- Food Industry
- Preservative (E221): Used as a food additive to preserve dried fruits, wine, and other food products by preventing microbial growth and discoloration.
Secondary Uses
- Mining Industry
- Flotation Agent: Used in mineral flotation processes.
- Laboratory & Research
- Reducing Agent: Used in various analytical and synthetic applications.
1. Basic Identification Attributes
- Chemical Name (IUPAC): Sodium sulfite
- Common/Trade Name: Sodium sulphite (Blue grade)
- CAS Number: 7757-83-7
- HS Code: 2831.20.00
- Synonyms: Sodium sulfite, sodium sulphite, blue grade sodium sulphite
2. Physical & Chemical Properties
- Physical State: White to bluish-white crystalline powder
- Color & Odor: Bluish-white; odorless to slight sulfur odor
- Solubility: 22 g/100 mL water at 20°C
- Density: 2.633 g/cm³
- Melting Point: 33 °C (decahydrate) – blue grade typically near anhydrous form melting > 70 °C
- pH (1% solution): Alkaline (approx. 9-10)
- Appearance: Crystalline powder with blue tint
3. Safety & Hazard Attributes
- GHS Classification:
- Skin Irritant (Category 2)
- Eye Irritant (Category 2A)
- Toxicity: LD₅₀ (oral, rat) > 3000 mg/kg
- Exposure Limits: OSHA PEL: 5 mg/m³ (as dust)
- Corrosivity: Non-corrosive but irritating
4. Storage & Handling Attributes
- Storage Conditions: Store in a cool, dry, well-ventilated area, away from moisture and oxidizers
- Container Type: 25kg PE-lined paper bags or plastic drums
- Shelf Life: 12 months if stored properly
- Handling Precautions: Avoid dust inhalation; use protective equipment
5. Regulatory & Compliance Attributes
- REACH Registered
- FDA Approved for food use (E221)
- Complies with OSHA Hazard Communication Standard
- Not classified as hazardous for transport
6. Environmental & Health Impact
- Biodegradability: Inorganic salt; not biodegradable but environmentally safe in normal use
- Ecotoxicity: Low toxicity to aquatic life at typical concentrations
- Bioaccumulation: Not expected
- Aquatic Impact: Excess can lead to oxygen depletion in water bodies
Safety Handling Precautions
- PPE Required: Gloves, dust mask, safety goggles
- Handling Guidelines: Use local exhaust ventilation; avoid dust formation
- Storage Measures: Keep containers tightly closed and dry
First Aid Measures
- Inhalation: Move to fresh air; seek medical attention if symptoms develop
- Skin Contact: Wash with soap and water
- Eye Contact: Rinse thoroughly with water for 15 minutes; seek medical advice if irritation persists
- Ingestion: Rinse mouth; seek medical advice if large amounts ingested
Firefighting Measures
- Fire Hazards: Non-flammable; may emit sulfur oxides when heated
- Extinguishing Media: Use water spray, foam, dry chemical
- Hazardous Combustion Products: Sulfur oxides (SOx)
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Benzoic Acid
Benzoic Acid is a white crystalline solid with a faint, pleasant odor, classified as a simple aromatic carboxylic acid. It is widely used as a food preservative, antimicrobial agent, and chemical intermediate. Naturally occurring in many plants, it is commercially produced through oxidation of toluene or extraction from natural sources. Benzoic acid is valued for its ability to inhibit the growth of mold, yeast, and certain bacteria, making it essential in food preservation and cosmetic formulations. It also serves as a precursor in the manufacture of various pharmaceuticals, dyes, and plasticizers.
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.
Ellagic Acid
Ellagic Acid is a naturally occurring polyphenolic compound found in numerous fruits, nuts, and vegetables such as pomegranates, strawberries, raspberries, walnuts, and cranberries. It is a potent antioxidant known for its ability to scavenge free radicals and chelate metal ions. Due to its significant anti-inflammatory, anti-carcinogenic, and anti-viral properties, Ellagic Acid has gained extensive interest in pharmaceutical, nutraceutical, cosmetic, and food industries. It appears as a yellow to light brown crystalline powder, insoluble in water but soluble in organic solvents like ethanol and DMSO.
Ferulic Acid
Ferulic Acid is a naturally occurring hydroxycinnamic acid classified as a phenolic compound with potent antioxidant properties. It exists as a pale yellow to light brown crystalline powder with a faint characteristic odor. Ferulic Acid is commonly found in the cell walls of various plants such as rice bran, wheat, oats, coffee, apples, and fruits, where it plays a role in plant structural integrity and defense against environmental stress. It is valued across multiple industries—cosmetics, pharmaceuticals, nutraceuticals, food, and agriculture—due to its ability to neutralize free radicals, absorb UV radiation, and exhibit anti-inflammatory and antimicrobial activities.
Formic Acid
Formic Acid (methanoic acid) is the simplest carboxylic acid, typically supplied as an 85% aqueous solution. It is a colorless liquid with a pungent, penetrating odor and strong acidic properties. Formic Acid naturally occurs in insect stings and plant secretions and is widely used in chemical synthesis, agriculture, textile, leather, and rubber industries. The 85% solution balances potency and safe handling for industrial applications. It serves as a preservative, antibacterial agent, and intermediate chemical in numerous manufacturing processes.
Hydrazine Food Grade
Hydrazine Food Grade is a high-purity form of hydrazine (N₂H₄), a highly reactive, colorless, and fuming liquid with a pungent ammonia-like odor. It is a powerful reducing agent and chemical intermediate widely used in industrial applications. The food-grade specification ensures purity and controlled impurity levels suitable for limited and specialized food industry uses, primarily as a processing aid or sterilizing agent. Hydrazine exhibits strong nucleophilic and reducing properties, enabling various chemical transformations and sterilization processes.
Vitamin E Acetate Oily
Vitamin E Acetate Oily, also known as DL-Alpha-Tocopheryl Acetate, is a synthetic, oil-soluble form of Vitamin E with high purity and exceptional oxidative stability. This viscous liquid is ideal for applications requiring direct incorporation into oil-based systems such as soft gel capsules, cosmetic formulations, and fortified edible oils. Its stability under processing and storage conditions makes it a preferred form of Vitamin E for nutritional, pharmaceutical, cosmetic, and food-grade applications.
