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Sodium bisulfate

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Sodium bisulfate

Sodium bisulfate, also known as acid sodium sulfate, is an inorganic compound with the chemical formula NaHSO4. It is a white monoclinic crystal, hygroscopic, and the aqueous solution is acidic. The pH of 0.1mol/L sodium bisulfate solution is about 1.4.

Chemical formula: NaHSO4

Molecular weight: 120.06

CAS Number: 7681-38-1

EINECS Accession Number: 231-665-7

Melting point: 315 ℃ (decomposition)

Density: 2.1 g/cm³

Water solubility: hot water and alcohol decompose, dissolve in cold water, and its aqueous solution is acidic

Appearance: Colorless monoclinic crystal or white powder


The printing and dyeing industry is used as an auxiliary dye for acid dyes. The smelting industry is used as a flux for mineral decomposition. The pharmaceutical industry is used as a disinfectant and detergent component. The chemical industry is used as a raw material for the manufacture of sulfate and sodium alum. In addition, it is also used in oil drilling and soil improvement.


Packed in a plastic woven bag lined with two layers of polyethylene plastic bags, each bag has a net weight of sokg. Acid corrosion products. Dangerous Regulation No.: GB 8.1 Class 81509. UNNo.1821; IMDG CODE 8125 pages. Class 8.1. Store in a ventilated, dry warehouse. Pay attention to moisture. Protect from rain during transportation. In case of fire, water and various fire extinguishers can be used to put out the fire.