AMMONIA- ▸ Fertilizer feedstock: Nitrogen source for ammonium nitrate/sulfate and direct soil application.
- ▸ Refrigeration: Industrial refrigerant gas.
- ▸ Chemical synthesis: Feedstock for nitric acid, urea, fibers, dyes, and plastics.
- ▸ Metal treating: Nitriding and heat-treating atmospheres.
- ▸ Pulp & paper / water: Processing and pH control.
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.
Ammonia (CAS 7664-41-7, NH3) is anhydrous ammonia. The majority of production goes to fertilizers; it is also used as a refrigerant gas and as a feedstock for nitric acid, urea, plastics, explosives, synthetic fibers, and dyes, with further use in metal treating and pulp and paper.
Regulatory & registration requirements
- TSCA (US):
- REACH (EU):
- EC number: 231-635-3
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
Frequently Asked Questions
What is ammonia used for?
Anhydrous ammonia (CAS 7664-41-7, NH3) is used predominantly as a fertilizer and fertilizer feedstock. It also serves as an industrial refrigerant gas and as a feedstock for nitric acid, urea, plastics, synthetic fibers, and dyes, with further use in metal treating and pulp and paper.
Is ammonia NH3 or NH4?
Ammonia itself is NH3. NH4+ (ammonium) is the cation formed when ammonia gains a proton in water; the anhydrous product supplied here is NH3, CAS 7664-41-7.
Is ammonia water soluble?
Yes, ammonia is highly soluble in water, forming aqueous ammonia (ammonium hydroxide). Aqueous ammonia solutions are a common supply form for water treatment and pH control.
What UN number and shipping class apply to ammonia solutions?
Aqueous ammonia solutions (more than 35% but not more than 50% ammonia) ship under UN 2073. Anhydrous and other concentration ranges carry different classifications; consult the SDS for the applicable transport details.
How is ammonia supplied in bulk?
Anhydrous ammonia classifies under HS 2814.10 and is handled as a pressurized/refrigerated bulk product; aqueous ammonia is supplied in totes and bulk. Contact RawSource with your concentration, volume, and destination for a bulk quote, CoA, and SDS.
What is the REACH and TSCA regulatory status of Ammonia (Anhydrous Ammonia)?
Ammonia (Anhydrous Ammonia) (CAS 7664-41-7) 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 231-635-3).