Sodium Bisulfite Powder，White crystalline powder. Sulfur dioxide odor, melting point decomposition. Soluble in water, slightly soluble in alcohol, ether. Exposed to the air easily oxidized. Its aqueous solution (1%) has a pH of 4.0 to 5.5. Strong reducibility.
The role of sodium bisulfite：
1. For cotton fabrics and organic bleaching;
2. In the dye, paper, leather, chemical synthesis and other industries as a reducing agent;
3. The pharmaceutical industry is used to produce intermediates of amoutone and aminopyrine;
4. Food grade products used as bleach, preservatives, antioxidants;
5. For chromium-containing wastewater treatment, and as a plating additive.
Sodium bisulfite storage matters：
Operational Notes: Closed operation, local exhaust. Prevent the release of dust to the workshop air. Operators must undergo specialized training, strictly abide by the rules. It is recommended that operators wear self-priming filtered respirators, wear chemical safety goggles, wear rubber acid and alkali resistant suits and wear rubber acid-base gloves. Avoid producing dust. Avoid oxidants, acids, alkalis. Equipped with leak emergency treatment equipment. Empty containers may be harmful residues.
Storage Notes: Store in a cool, ventilated warehouse. Keep away from fire and heat. Prevent direct sunlight. Packing sealed. Should be separated with oxidants, acids, alkalis, avoid mixing reservoir. Should not be long-lived, so as not to deteriorate. Storage area should be equipped with suitable materials to contain spills.
Test Item | Standard Request. | Inspect Result | Inspect Conclusion |
Appearance | White crystalline powder | Conformed | Pass |
Content (NaHSO3) % | ≥99% | 99.1% | Pass |
SO2% | 64%-67% | 65% | Pass |
Cl% | 0.05 | 0.03 | Pass |
Fe% | ≤0.004% | 0.002% | Pass |
Water Insoluble Matter% | ≤0.03% | 0.01% | Pass |
Heavy metal (Pb)% | ≤0.001% | 0.0005% | Pass |
As% | ≤0.0002% | <0.0001% | Pass |
PH | 4.0-5.0 | 4.3 | Pass |
 | Shipment Pictures, ZZCC welcome your order inquiry. 1). Favorable price&Top quality. 2). Enough in stock&Prompt deliver. 3). Free samples for initial trial order. Export packing: 25kg bag. Delivery Time: Usually within 5-7working days after confirming the payment. Contact as below: Email:danae@qdsodaash.com Phone/WhatsApp:+8615064812331 Skype:danae008172 |
