Sodium Bisulfate Purchasing Guide

Sodium Bisulfate

The first time a pool maintenance engineer at a municipal aquatics center switched from hydrochloric acid to sodium bisulfate for pH correction, the reason had nothing to do with chemistry. It was a safety audit. The facility management had found that storing hydrochloric acid on site created a documentation burden and a liability that exceeded the operational cost savings. Sodium bisulfate — a dry granular acid — was slower to act and required a slightly higher dose to achieve the same pH drop, but it could be stored, handled, and dispensed by seasonal staff with basic chemical safety training rather than by personnel certified for corrosive liquid handling.

♦Sodium bisulfate (CAS 7681-38-1), also known as sodium hydrogen sulfate, is produced in substantial quantities as a co-product of nitric acid synthesis and also manufactured directly for commercial use. It dissolves readily in water to release hydrogen ions, making it an effective, low-hazard acidifying agent across a wide range of applications where the alternative — sulfuric acid or hydrochloric acid — presents logistical or safety complications. The water treatment and pool chemical market consumes the largest volume. Food-grade production for pH adjustment in meat processing and poultry antimicrobial rinses follows closely, with the relevant grades carrying USDA or FDA compliance documentation that distinguishes them from industrial product. Dishwasher and industrial cleaner formulations use it as a non-fuming acidifier in powdered and solid formats.
 
Purity specification matters differently depending on the end use. Industrial water treatment grades specify assay at 93–99% NaHSO4 by titration, with controlled iron and heavy metals content, but are not routinely tested for arsenic or lead at food-grade detection limits. Buyers shifting between markets or building dual-use supply chains should confirm the applicable documentation before placing volume orders. The difference in unit cost between industrial and food-grade product often narrows when freight and documentation costs are factored in, particularly for buyers importing into the EU or North America where import inspection requirements differ by grade.
 
Shandong Lookchemical Co., Ltd. supplies sodium bisulfate (CAS 7681-38-1) in industrial and technical grades, with purity typically at 93% or higher measured by titrimetric method. Each batch is released with a full CoA and GHS-compliant SDS. Export paperwork including origin documentation is prepared per destination market requirements. For pricing and sample requests, reach the teamat sales01@sdlookchemical.com or through sdlookchem.com. Orders above 10 kg qualify for bulk pricing; standard lead time is five to ten business days from order confirmation.
Sodium Bisulfate

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