Keywords

• Sodium Hydrosulfite (7775-14-6)
• Sodium Dithionite
• /

Quick Details

• ProName: Sodium Hydrosulfite
• CasNo: 7775-14-6
• Molecular Formula: Na?S?O?
• Appearance: White crystalline powder
• Application: Used for bleaching vermicelli, vermice...
• DeliveryTime: prompt
• PackAge: 25kg/vacuum paper drum, 1kg/bag
• Port: Qingdao Tianjin
• ProductionCapacity: 200 Metric Ton/Month
• Purity: ≥90.0%
• Storage: Cool, dry & sealed against moisture (p...
• Transportation: by sea/air
• LimitNum: 1 Kilogram
• Assay (Na?S?O?): ≥85.0% (Iodometric
• Moisture: ≤5.0%

Superiority

• Melting Point: ＞300°C (decomposition); Density: ~2.13 g/cm³ (20°C); Flash Point: Not available, liable to self-heat and ignite when moist/wetted; aqueous solution weakly acidic (pH 4-6)
• Key Indices: Assay ≥85.0%; Moisture ≤5.0%; Iron (Fe) ≤0.005%; Chloride (Cl?) ≤0.05%; Heavy Metals (Pb) ≤10 ppm
• Stability: Strong reducing agent; decomposes easily when exposed to oxygen, water, acid, heavy metal ions, releasing SO? and heat; may explode under high temperature or confined conditions; violent reaction with oxidants
• Toxicity: Rat oral LD?? ≈2500 mg/kg, low toxicity; dust irritates respiratory tract and skin; SO? decomposition product is toxic

• Textile Dyeing & Printing: Reducing agent for vat dyeing, fabric bleaching to remove residual dyes and impurities; bleaching of silk and wool without fiber damage
• Paper Industry: Pulp bleaching to replace chlorine and reduce pollution; deinking of waste paper to improve recycled paper whiteness
• Food Processing: Bleaching agent for sugar, candied fruits, glucose, etc., with maximum dosage in accordance with GB 2760; bleaching and antioxidant in starch and yuba processing
• Other Fields: Reducing agent for mineral processing; removal of heavy metal ions in water treatment; reducing reagent in organic synthesis

• Hazards: UN 1384, Class 4.2 self-heating substance; generates heat and ignites easily when moist/wetted; dust forms explosive mixture with air; SO? decomposition product is toxic and irritates mucous membranes; violent reaction with oxidants, strong acids and heavy metals
• Safety Phrases: S26 (Rinse eyes with plenty of water and seek medical advice); S36/37/39 (Wear protective clothing, gloves and goggles); S45 (Seek medical attention immediately in case of accident or fire)
• Protection Measures: Operate in dry and ventilated environment; wear dust mask, chemical-resistant gloves and goggles; prohibit mixing with water, acid and oxidants; add powder slowly to water when dissolving, never reverse
• First Aid: Rinse skin/eyes with clean water for 15 minutes if contacted; move to fresh air, supply oxygen and seek medical attention if inhaled; induce vomiting immediately (conscious state) if ingested, drink milk and seek medical attention

• Storage: Seal and store in a dry and cool warehouse at ≤25℃, relative humidity ≤75%; nitrogen-filled sealed packaging; keep away from heat sources, open flames, oxidants, acids and heavy metal salts; shelf life: 6 months (sealed and dry)
• Transportation: Transport as UN 1384 Class 4.2 dangerous goods with ventilated containers; packaged in iron drums/aluminum foil bags (25 kg/drum); protect from sunlight, moisture and damage, strictly prohibit rain; handle with care during loading and unloading, avoid friction and impact

Certificate of Analysis (CoA), dangerous goods transport identification certificate, food grade certification (GB 25590-2010), third-party testing reports, ISO9001 certificate are available upon request

Details

Company Introduction: East Chemsources Limited was established in 2008, is a professional company engaged in the development of chemical products. In the past of 15 years，through continuous technological innovation and the use of talent introduction advantages, we have achieved rapid development, and has become an international diversified modern chemical enterprise. At present, our products have been exported to more than 80 countries,including food additives, medical raw materials, chemical products and personal care.

Since the establishment of the company, always adhere to the credibility first, quality first enterprise creed. Our company is committed to creating a customer-centric, customer-demand-oriented, customer value creation and achievement of customer dreams for the purpose of the service concept, with a broad vision and broad mind, committed to creating good benefits and market operation, to build corporate brand.

Our Service:

1. High quality with the competitive price.

2. Professional and experienced business services.

3. Prompt delivery within 2-3 weeks (1 weeks is available for ready stock)

4. Quick response to client inquiries

5. Free samples and shipping documents in accordance with the regulations of different countries

6. Adequate product inventory

6. Variety of payments, such as L/C, TT, , MoneyGram or other payments.