Sodium Bisulfate CAS#7681-38-1
Sodium bisulfate is a white crystalline solid that is readily soluble in water. It is corrosive to both metals and biological tissues.
It is highly hygroscopic, meaning it readily absorbs moisture from the environment. In aqueous solution, sodium bisulfate fully dissociates into sodium (Na⁺), hydrogen (H⁺), and sulfate (SO₄²⁻) ions.
As a mineral acid, it is not expected to contaminate groundwater or soil, nor is it prone to bioaccumulation in the food chain, according to EPA data (1993).
Sodium bisulfate Chemical Properties
| Melting point | 315 °C |
| density | 2.1 |
| form | Granules |
| color | White to light yellow |
| Water Solubility | soluble in 2 parts H2O, 1 part boiling H2O; decomposes in alcohol to sodium sulfate and H2SO4 [MER06] |
| Sensitive | Hygroscopic |
| Merck | 138658 |
| Stability: | Stable. Incompatible with strong bases, strong oxidizing agents, sodium carbonate, sodium hypochlorite. May decompose upon exposure to moist air or water. |
| InChI | InChI=1S/Na.H2O4S.H/c;1-5(2,3)4;/h;(H2,1,2,3,4); |
| InChIKey | TTXJTWGBBUPRBF-UHFFFAOYSA-N |
| SMILES | S(O)(O)(=O)=O.[NaH] |
| CAS DataBase Reference | 7681-38-1(CAS DataBase Reference) |
| EPA Substance Registry System | Sodium bisulfate (7681-38-1) |
| Hazard Codes | Xi |
| Risk Statements | 41 |
| Safety Statements | 24-26 |
| RIDADR | 3260 |
| WGK Germany | 1 |
| RTECS | VZ1860000 |
| F | 3 |
| TSCA | Yes |
| HazardClass | 8 |
| PackingGroup | II |
Product Usage
Sodium Chlorite (for ClO₂), as a strong oxidizing agent and a key raw material for the preparation of chlorine dioxide (ClO₂), is widely used in the field of water treatment for the disinfection and sterilization of drinking water, industrial circulating water, and wastewater.
It effectively eliminates bacteria, viruses, and other microorganisms present in water, while also helping to remove odor and color, and reduce the presence of harmful residues, thereby improving overall water quality.
Company Profile
Furuida (Jinan) Chemical Technology Co., Ltd., based in Shandong, China, is a specialty chemical manufacturer whose reach extends from R&D and production to distribution and worldwide service. Anchored in advanced chemical materials, the firm upholds three guiding commitments: honesty in all business, rigorous quality standards, and service treated as an enduring partnership. Innovation is carried out in practice rather than merely stated, and quality undergoes scrutiny at every production phase. This approach has enabled Furuida to break into fresh markets, refine its operations, and gain buyer confidence.
Driving this progress is a capable workforce with deep experience in cross-border trade and technical assistance, supported by a well-developed global supply infrastructure that balances dependability with rapid turnaround. Yearly sales have surpassed RMB 600 million, and durable partnerships have been forged with over 5,000 industrial customers spanning Asia, Europe, Africa, and Oceania. Such extensive coverage has fostered deep client loyalty and widespread industry esteem.
On the product side, Furuida offers pharmaceutical intermediates, food additives, electroplating chemicals, water treatment agents, dye auxiliaries, functional new materials, titanium compounds, metal salts, catalysts, and surfactants. These serve sectors including pharmaceuticals, electronics, coatings, rubber and plastics, specialty chemicals, and water treatment. Building on this broad lineup, Furuida delivers to clients globally products of consistent quality at competitive prices, along with comprehensive one-stop solutions that evolve with market needs.
