Ammonium Chloride Reagent ACS Grade

Ammonium chloride ACS reagent delivers the analytical precision your laboratory demands. This high purity inorganic compound meets stringent American Chemical Society standards, ensuring consistent results in critical analytical procedures. Whether preparing standard solutions, conducting electrochemical experiments, or performing routine chemical analysis, GFS Chemicals' ACS grade ammonium chloride provides the reliability that separates professional laboratories from basic operations. GFS Chemicals offers bulk Ammonium Chloride ACS Grade Reagent, please reach out to Customer Service for a custom quote.

Ammonium Chloride Properties

Ammonium chloride ACS reagent represents the premium analytical grade form of NH₄Cl, an inorganic compound consisting of ammonium cations (NH₄⁺) and chloride anions (Cl⁻). This white crystalline salt achieves ≥99.5% purity through rigorous purification processes that eliminate trace contaminants capable of interfering with sensitive analytical methods.

The American Chemical Society designation guarantees this ammonium salt meets exacting specifications for laboratory use. Unlike technical grade ammonium compounds used in fertilizer production or industrial applications, ACS reagent grade undergoes extensive testing to verify minimal heavy metal content, negligible insoluble matter, and controlled pH characteristics in aqueous solution.

This highly soluble ammonium salt dissolves readily in water, forming clear solutions with predictable chemical behavior. The manufacturing process typically involves neutralization of ammonia with hydrochloric acid, followed by crystallization and purification steps that remove impurities common in by-product streams from industrial processes like the Solvay process.

The molecular weight of 53.49 g/mol and CAS number 12125-02-9 identify this specific chemical form, distinguishing it from other ammonium salts and compounds available in the market.

Key Ammonium Chloride Specifications

• ACS reagent grade ammonium chloride delivers precise specifications essential for accurate analytical work. The assay purity reaches ≥99.5% on a dry basis, with insoluble matter limited to ≤0.005% and ignition residue maintained below 0.01%. These tight controls ensure your analytical results remain uncompromised by contaminants.
• Physical properties include a white crystalline appearance available in powder, crystal, or chunk form depending on application requirements. The material decomposes at approximately 340°C through sublimation, transitioning directly from solid to gas phase without melting. This thermal behavior requires careful attention during heating procedures.
• Aqueous solutions exhibit mildly acidic characteristics, with a 5% solution typically showing pH values between 4.5-5.5. This acidity results from hydrolysis of the ammonium ion, forming a weak acid that can influence buffer systems and pH-sensitive reactions.
• Heavy metal specifications remain stringent, with lead content limited to ≤5 ppm and iron restricted to ≤2 ppm. These low concentrations prevent interference in trace metal analysis and electrochemical procedures where metal contamination could invalidate results.
• The material demonstrates high solubility in water (37.2 g/100 mL at 20°C) and forms stable solutions suitable for long-term storage under appropriate conditions. Density measures approximately 1.53 g/cm³ at room temperature, facilitating accurate volume and mass calculations.

Lab Applications & Uses

• Standard solution preparation represents a primary application for ammonium chloride ACS reagent. Analytical laboratories utilize this material to create reference standards for titrations, calibrations, and method validations where precise concentrations are critical for accurate results.
• Buffer preparation benefits from the predictable pH behavior of ammonium chloride solutions. The compound serves as a component in various buffer systems, particularly those requiring mild acidity or specific ionic strength characteristics. These buffers maintain stable pH conditions during analytical procedures sensitive to hydrogen ion concentration changes.
• Electrochemical experiments frequently employ ammonium chloride as an electrolyte component. The compound provides conductivity in aqueous solutions while maintaining chemical stability under typical laboratory conditions. This makes it suitable for electroplating procedures, conductivity measurements, and electroanalytical methods.
• Protein precipitation and purification processes utilize ammonium salts for their ability to alter solution ionic strength and protein solubility. The high purity of ACS grade material ensures these biological applications remain free from contaminants that could denature proteins or interfere with downstream analysis
• Environmental testing laboratories employ ammonium chloride in compliance with Standard Methods 5210 and various EPA procedures. These applications require the analytical precision that only ACS reagent grade materials can provide, ensuring regulatory compliance and data integrity.
• Chemical synthesis applications leverage ammonium chloride as both a reagent and catalyst support material. The compound participates in organic synthesis reactions and serves as a nitrogen source in specialized chemical preparations where purity directly impacts product quality.