Sodium bisulfite
- CAS No.
- 7631-90-5
- Chemical Name:
- Sodium bisulfite
- Synonyms
- NAHSO3;SODIUM METABISULPHITE;SODIUM DISULFITE;SODIUM BISULPHITE;SODIUM HYDROGEN SULFITE;BISULFITE;SODIUM BISULFITE SOLUTION;Sodium acid;SODIUM HYDROGEN SULPHITE;Natriumdisulfit
- CBNumber:
- CB5854257
- Molecular Formula:
- HNaO3S
- Molecular Weight:
- 104.06
- MOL File:
- 7631-90-5.mol
- Modify Date:
- 2023/11/29 16:31:21
| Melting point | 150 °C |
|---|---|
| Density | 1.48 |
| storage temp. | Store at RT. |
| solubility | 300 g/L |
| form | Powder/Solid |
| Specific Gravity | 1.48 |
| color | White |
| Odor | Slight odor of sulfur dioxide |
| Water Solubility | 300 g/L |
| Merck | 13,8660 |
| Stability | Stable. Incompatible with strong oxidizing agents, strong acids. |
| InChIKey | DWAQJAXMDSEUJJ-UHFFFAOYSA-M |
| CAS DataBase Reference | 7631-90-5(CAS DataBase Reference) |
| EPA Substance Registry System | Sodium bisulfite (7631-90-5) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302 | |||||||||
| Precautionary statements | P264-P270-P301+P312-P501 | |||||||||
| Hazard Codes | Xn | |||||||||
| Risk Statements | 22-31-41-52 | |||||||||
| Safety Statements | 26-39-46-25 | |||||||||
| RIDADR | UN 2693 | |||||||||
| OEB | B | |||||||||
| OEL | TWA: 5 mg/m3 | |||||||||
| WGK Germany | 1 | |||||||||
| RTECS | UX8225000 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 28321000 | |||||||||
| Toxicity | LD50 i.v. in rats: 115 mg/kg (Hoppe, Goble) | |||||||||
| NFPA 704 |
|
Sodium bisulfite price More Price(22)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 8.06356 | Sodium hydrogen sulfite (39% solution in water) for synthesis | 7631-90-5 | 1L | ₹2310.01 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 8.06356 | Sodium hydrogen sulfite (39% solution in water) for synthesis | 7631-90-5 | 2.5L | ₹3780 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 799394 | Sodium bisulfite anhydrous, free-flowing, Redi-Dri?, ACS reagent | 7631-90-5 | 100G | ₹3279.98 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 8.06356 | Sodium hydrogen sulfite (39% solution in water) for synthesis | 7631-90-5 | 25L | ₹25460 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 799394 | Sodium bisulfite anhydrous, free-flowing, Redi-Dri?, ACS reagent | 7631-90-5 | 1KG | ₹9655.9 | 2022-06-14 | Buy |
Sodium bisulfite Chemical Properties,Uses,Production
Chemical Properties
Sodium bisulfite is a white crystalline solid. Slight odor of sulfur dioxide and a disagreeable taste. Slowly oxidized to the sulfate on exposure to air
Uses
sodium bisulfite is a preservative and anti-oxidant, it is most frequently used as a pH adjuster.
General Description
Also known as sodium acid sulfite or sodium hydrogen sulfite, NaHS03 is white crystals or crystalline powder that has a slight sulfurous odor and taste.Specific gravity 1.48. Strong irritant to skin and tissue. It is soluble in water,insoluble in alcohol,unstable in air,and non-combustible. Derived by saturating sodium carbonate solution with sulfur dioxide and the solution crystallized. Used as a chemical(sodium salts, cream of tartar), in vat dye preparation, textiles (antichlor, mordant, discharge), food preservative, bleaching groundwood, wool,etc., reducing agent, fermentation, antiseptic, cask sterilization (brewing), copper and brass plating,color preservative for pale crepe rubber, wood pulp digestion, analytical reagent,and as a dietary supplement.
Air & Water Reactions
Water soluble.
Reactivity Profile
Sodium bisulfite is a reducing agent. Emits highly toxic gaseous sulfur dioxide gas when heated to decomposition or on contact with mineral acids [Sax, 9th ed., 1996, p. 2949].
Hazard
Not permitted in meats and other sources of vitamin B 1 , strong irritant to skin and tissue.
Health Hazard
Powder is irritating to eyes, nose, and throat and can irritate skin. Ingestion may cause irritation of stomach. Very large doses cause violent colic, diarrhea, depression, and death.
Fire Hazard
Flammable/combustible material. May ignite on contact with moist air or moisture. May burn rapidly with flare-burning effect. Some react vigorously or explosively on contact with water. Some may decompose explosively when heated or involved in a fire. May re-ignite after fire is extinguished. Runoff may create fire or explosion hazard. Containers may explode when heated.
Contact allergens
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.
Safety Profile
Poison by intravenous and intraperitoneal routes. Moderately toxic by ingestion. A corrosive irritant to skin, eyes, and mucous membranes. Mutation data reported. An allergen. When heated to decomposition it emits toxic fumes of SO, and Na2O. See also SULFUROUS ACID and SULFITES
Potential Exposure
Sodium bisulfite is used in the digestion of wood pulp, in the tanning of leather; in the dyeing of textiles; as a photographic reducing agent; as a food preservative; as an additive in electroplating; as disinfectant, bleach, antioxidant, and as inhibitor of yeast and bacteria in winemaking.
Shipping
UN2693 Bisulfites, inorganic, aqueous solutions, n.o.s., Hazard class: 8; Labels: 8-Corrosive material. UN3260 Bisulfites, inorganic, solid, n.o.s., Hazard class: 8; Labels: 8-Corrosive material.
Purification Methods
Crystallise it from hot H2O (1mL/g). Dry it at 100o under vacuum for 4hours.
Incompatibilities
Aqueous solution is a weak acid. Incompatible with strong mineral acids forming a toxic sulfur dioxide gas. A strong reducing agent, sodium bisulfite is incompatible with oxidizers, such as perchlorates, peroxides, permanganates, chlorates, and nitrates. Reacts with bases forming sulfate. Slowly oxidizes to sulfate in air. Heat causes decomposition. Slowly oxidized to the sulfate on exposure to air. Contact with oxidizers or acids forms sulfur dioxide gas. Attacks some metals in the presence of moisture.
Waste Disposal
Dump into water, add soda ash, then neutralize with HCl; flush to sewer with large volumes of water.
Sodium bisulfite Preparation Products And Raw materials
Raw materials
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chevron_right| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| GLR Innovations | +91 9891111994 | New Delhi, India | 4542 | 58 | Inquiry |
| SUKHA CHEMICAL INDUSTRIES | +91-9638875444 +91-9638875444 | Gujarat, India | 26 | 58 | Inquiry |
| oswal chemicals | +91-9173644055 +91-9173644055 | Gujarat, India | 66 | 58 | Inquiry |
| Choice Chemicals | +91-9895031268 +91-9895031268 | Kerela, India | 118 | 58 | Inquiry |
| JSK Chemicals | +919879767970 | Gujarat, India | 3756 | 58 | Inquiry |
| Varun Enterprises | +91-8700598846 +91-9811508889 | New Delhi, India | 4 | 58 | Inquiry |
| Ghanshyam Chemicals | +91-7210130135 +91-9824087558 | Gujarat, India | 20 | 58 | Inquiry |
| Sujata Chemicals | +91-9898025496 +91-9898025496 | Gujarat, India | 73 | 58 | Inquiry |
| Snow White Products | +91-9820070100 +91-9820070100 | Maharashtra, India | 35 | 58 | Inquiry |
| Bini Chemicals | +91-8866971063 +91-9924110967 | Gujarat, India | 8 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| GLR Innovations | 58 |
| SUKHA CHEMICAL INDUSTRIES | 58 |
| oswal chemicals | 58 |
| Choice Chemicals | 58 |
| JSK Chemicals | 58 |
| Varun Enterprises | 58 |
| Ghanshyam Chemicals | 58 |
| Sujata Chemicals | 58 |
| Snow White Products | 58 |
| Bini Chemicals | 58 |
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