Customization: | Available |
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CAS No.: | 7631-90-5 |
Formula: | Hnao3s |
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Density: 1.48 Melting point: 150ºC Boiling point: Decomposes (NIOSH, 2016) Refractive index: 1.43-1.47 PSA: 79.57000 logP: 0.20420 Solubility: 300 g/L Analysis laboratory method: GAS-LIQUID CHROMATOGRAPHIC DETERMINATION OF SODIUM BISULFITE; IN COMPLEX MATRICES. Appearance: White powder Spontaneous combustion: Not flammable (USCG, 1999) Storage It should be stored in a cool and dry warehouse. Containers must be sealed to prevent oxidation by air or deterioration due to moisture. Do not store or transport together with oxidants or strong acids. It should be protected from rain and direct sunlight during transportation Chemical properties: white monoclinic crystal sulfur dioxide odor; soluble in water, slightly soluble in alcohol. Color: White or yellowish-white monoclinic crystals or coarse powder, with a sulfur dioxide odor, unstable in the air. Contact allergy Sodium bisulfite is mainly used as an antioxidant in pharmaceutical products, as a disinfectant or bleach, and in the dye industry. The bisulfite of commerce consists chiefly of metabisulfite and possesses the same properties as the true bisulfite. So, the allergen to be tested in products containing disulfite is the corresponding metabisulfite. Decomposition: Emits toxic fumes of oxides of sulfur & sodium monoxide; when heated to decomposition. Smell: Slight odor of sulfur dioxide pH value: Aq soln is acid Physical properties: White monoclinic crystals. There is a smell of sulfur dioxide. It is readily soluble in water and slightly soluble in alcohol. Solubility: Readily soluble in water, the aqueous solution is acidic, and slightly soluble in alcohol. Spectral characteristics: INDEX OF REFRACTION: 1.526 Stability: 1. It will not decompose if used and stored in accordance with the specifications. 2. When exposed to air for a long time, it will oxidize into sodium bisulfate. When heated or exposed to acid, it will produce SO2 gas. It is highly prone to oxidation when exposed to the air. Readily soluble in water and slightly soluble in ethanol. The PH value of its aqueous solution (1%) is 4.0 to 5.5. It decomposes when heated and shows strong reducing properties. It has the smell of sulfur dioxide and decomposes when heated. It has strong reducing properties and is highly prone to oxidation when exposed to air. Storage temperature: Store at RT |
It is used for bleaching cotton fabrics and organic matter. It is used as a reducing agent in industries such as dyes, papermaking, leather tanning and chemical synthesis |
It is used as a bleaching agent, preservative, antioxidant and bacterial inhibitor. |
Sodium bisulfite is used in the treatment of chromium-containing wastewater and serves as an electroplating additive. |
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Company Profile
Tianjin Jiaruitang Technology Development Co., Ltd. stands as a hallmark of professional excellence in the export industry. We proudly present a versatile array of top-tier products, including chemical marvels, cutting-edge medical devices, essential masks, precision-engineered machinery, superior chemical raw materials, and innovative pharmaceutical intermediates. Each product is crafted with precision to meet and exceed international quality standards.
In our quest to broaden our international clientele, we are unwavering in our dedication to delivering unmatched product quality at the most attractive prices. Guided by our core philosophy of 'service and sincere exchange for your trust and support, mutual benefit, and win-win,' we eagerly seek to cultivate long-lasting collaborations with partners around the globe.
To meticulously address the unique requirements of importers and intermediaries, we excel in providing comprehensive 'door-to-door' service excellence, ensuring a seamless and satisfying customer journey at every stage.
Our powerful and efficient export service system empowers us to offer our esteemed customers the best export pathways, combined with the most competitive pricing structure, guaranteeing both efficiency and cost-effectiveness.
Our dedicated team comprises highly skilled professionals with a wealth of operational expertise, all committed to delivering excellence and surpassing expectations in service delivery.
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Exceptional Goods Quality
Q1: Can i get some samples?
A: Yes, we can supply the free sample, but the shipping cost be paid by our customers.
Q2: How to start orders or make payments?
A: Proforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T, Paypal.
Q3: How to confirm the Product Quality before placing orders?
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the
samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.
Q4:What's your MOQ?
A:Our MOQ is 1kg. But usually we accept less quantity, such as 100g on the condition that sample charge is 100% paid.
Q5: How about delivery lead time?
A:Delivery lead time: About 3-5 days after payment confirmation. (Chinese holiday not included)