Ammonium Chloride

Industrial Grade · Fertiliser Grade — Bulk supply across India & International Markets

What is Ammonium Chloride?

Ammonium Chloride (NH4Cl), also known as Sal Ammoniac, is a white crystalline salt that is highly soluble in water and mildly acidic in solution. It has been used industrially for centuries, with applications ranging from traditional metal soldering flux to modern dry cell battery electrolytes, textile processing, and as a nitrogen source in specific fertiliser applications. Its combination of solubility, mild acidity, and chemical reactivity makes it valuable across diverse industrial sectors.

Polychem Industries supplies Ammonium Chloride in industrial grade and fertiliser grade to battery manufacturers, textile processing companies, metal fabrication businesses, and agricultural input companies across India and internationally. Its versatility across electrochemical, textile, metallurgical, and agricultural applications makes it a foundational industrial chemical with continued relevance across multiple sectors.

Available Grades

GradeFormPurityStandardApplications
Industrial GradeWhite crystalline powder/granules99%+ (Industrial Grade)IndustrialDry cell batteries, textile dyeing, metal flux, fertiliser
Fertiliser GradeWhite granules/prills99.5%+Fertiliser StandardNitrogen fertiliser for paddy and certain crops

Applications & Uses

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Dry Cell Batteries

A traditional and still relevant application. Ammonium Chloride is used as an electrolyte component in zinc-carbon dry cell batteries, facilitating the electrochemical reactions that generate electrical current in these widely used disposable batteries.

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Textile Dyeing & Printing

Used as a mordant and pH-adjusting agent in textile dyeing processes, particularly with certain dye classes, helping achieve proper dye fixation and colour development on fabric.

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Metal Soldering Flux

Historically known as Sal Ammoniac, used as a flux in metal soldering and galvanising processes, helping clean metal surfaces and improve solder adhesion by removing oxide layers during the joining process.

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Nitrogen Fertiliser

Fertiliser Grade Ammonium Chloride is used as a nitrogen source in specific agricultural applications, particularly suited to certain crops like paddy rice where its chloride content does not present the same concerns as with chloride-sensitive crops.

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Chemical & Laboratory Reagent

Used as a laboratory reagent and chemical intermediate in various analytical and synthetic chemistry applications, valued for its well-characterised chemical properties.

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Adhesive & Glue Manufacturing

Used as a hardening accelerator in certain adhesive and glue formulations, particularly those based on urea-formaldehyde resin systems where it helps control cure speed.

Technical Specifications

Ammonium Chloride — Key Properties

Chemical FormulaNH4Cl
CAS Number12125-02-9
Molecular Weight53.49 g/mol
AppearanceWhite crystalline powder/granules
Purity99%+ (Industrial Grade)
Melting PointSublimes at 340°C
Density / Bulk DensityBulk density: 0.6–0.8 g/cm3
pH4.5 – 6.0 (5% solution, mildly acidic)
Packaging Available25 kg / 50 kg bags
StorageStore in cool, dry place away from moisture. Slightly hygroscopic — keep sealed to prevent caking.

Why Source Ammonium Chloride from Polychem Industries?

  • Industrial Grade and Fertiliser Grade available with full documentation
  • Certificate of Analysis available on request
  • Versatile use across batteries, textiles, metallurgy and agriculture
  • Reliable bulk supply for industrial and agricultural customers
  • Competitive pricing with consistent year-round availability
  • Export documentation experience for international shipments

Frequently Asked Questions

Why is Ammonium Chloride used in dry cell batteries?
Ammonium Chloride serves as the electrolyte in traditional zinc-carbon dry cell batteries, providing the ionic conductivity needed to support the electrochemical reactions between the zinc anode and carbon/manganese dioxide cathode that generate electrical current. While alkaline batteries have largely replaced zinc-carbon batteries in many applications, Ammonium Chloride-based cells remain in production for certain lower-cost battery applications.
What is Sal Ammoniac and why is it called that?
Sal Ammoniac is the traditional and historical name for Ammonium Chloride, derived from its historical association with deposits found near the Temple of Amun in ancient Egypt. The name persists today, particularly in the context of its traditional use as a soldering flux, where "Sal Ammoniac blocks" are still used by some metalworkers for cleaning soldering iron tips.
Why is Ammonium Chloride used as an accelerator in urea-formaldehyde adhesives?
Ammonium Chloride acts as a latent acid catalyst in urea-formaldehyde resin systems. When the resin is heated during the wood panel pressing process, the Ammonium Chloride releases hydrochloric acid, which accelerates the cross-linking (curing) reaction of the resin, helping achieve faster, more controlled curing in plywood, particleboard, and MDF manufacturing.
Do you export Ammonium Chloride outside India?
Yes. We export to Bangladesh, Sri Lanka, Nepal, Bhutan, and South Africa with full export documentation. Contact us for export pricing and lead times.

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