AMMONIUM BISULFITE- ▸ Oxygen scavenging: Corrosion control in drilling fluids and boiler water.
- ▸ Pulp & paper: Sulfur source in sulfite pulping.
- ▸ Fertilizer: Sulfur source in fluid fertilizers.
- ▸ Grain treatment: Antimicrobial treatment for stored grain.
- ▸ Reducing agent: General reductant in industrial processes.
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
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Transport classification per the UN Model Regulations / 49 CFR 172.101 Hazardous Materials Table. Confirm against the grade-specific SDS (Section 14) before shipping.
Ammonium bisulfite (CAS 10192-30-0, NH4HSO3) is supplied here as a ~60% aqueous solution. A reducing agent, it is used as an oxygen scavenger and corrosion-control additive in drilling fluids and boiler water, in sulfite pulping, as a sulfur source in fluid fertilizers, and in grain preservation.
Regulatory & registration requirements
- TSCA (US):
- REACH (EU):
- EC number: 233-469-7
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
Solutions Using This Product
Process-solution guides on this site that specify this chemistry:
- Oxygen Scavengers for Water Injection (Oil, Gas & Mining)
- Completion & Workover Brines (Oil, Gas & Mining)
- Dechlorination (Residual Chlorine Removal) (Water Treatment)
Frequently Asked Questions
What is ammonium bisulfite used for?
Ammonium bisulfite (CAS 10192-30-0, NH4HSO3), supplied here as a ~60% aqueous solution, is a reducing agent used as an oxygen scavenger and corrosion-control additive in drilling fluids and boiler water. It also serves in sulfite pulping, as a sulfur source in fluid fertilizers, and in grain preservation.
What is bisulfite used for?
Bisulfite salts act as reducing agents and oxygen scavengers, removing dissolved oxygen to control corrosion in water systems and serving as a sulfur source in pulping and fertilizers. The ammonium form additionally supplies nitrogen.
How does ammonium bisulfite scavenge oxygen?
As a reducing agent, the bisulfite ion reacts with dissolved oxygen, converting to sulfate and thereby removing the oxygen that drives corrosion in boiler and drilling-fluid systems. It is dosed to maintain a controlled reducing residual.
What concentration is this ammonium bisulfite solution?
This product is supplied as a ~60% aqueous solution. Confirm the exact active concentration and pH on the spec sheet and Certificate of Analysis when ordering.
How is ammonium bisulfite 60% solution supplied in bulk?
RawSource distributes the 60% solution in bulk drums, totes, and IBCs under HS 2832.20 (sulfites, other). Submit your volume and destination for a bulk quote; CoA and SDS are provided with shipment.
What is the REACH and TSCA regulatory status of Ammonium Bisulfite?
Ammonium Bisulfite (CAS 10192-30-0) is subject to U.S. TSCA Inventory requirements; supplying it into the EU requires valid REACH registration ((EC) No 1907/2006). RawSource cannot verify a third-party supplier's registrations — buyers should require documented TSCA and REACH compliance for their jurisdiction and volume (EC 233-469-7).