Introduction to Ammonium Chloride (NH₄Cl)
Ammonium Chloride is a white crystalline salt composed of ammonia (NH₃) and hydrochloric acid (HCl). It is widely used in both fertilizer and animal feed industries for its excellent nitrogen content and functional roles. It is available in multiple grades—fertilizer grade, feed grade, and industrial grade, depending on the intended use and purity level.
1. Ammonium Chloride – Fertilizer Grade
Function and Benefits:
Acts as a fast-acting nitrogen source (25% N content) for crops.
Especially suitable for rice, wheat, cotton, maize, and vegetables.
Promotes vegetative growth and improves crop yield.
Suitable for alkaline soils, as it slightly acidifies the root zone.
Specifications (Typical):
Parameter | Specification |
---|---|
Appearance | White crystalline powder or granules |
Nitrogen Content | ≥ 25.4% |
Moisture | ≤ 0.5% |
Na+ (Sodium) | ≤ 0.6% |
Heavy Metals | ≤ 10 ppm |
Solubility | Completely soluble in water |
Odor | Slight ammonia smell |
Synthetic Ammonium Chloride: High-purity product, chemically produced.
By-product Ammonium Chloride: Derived from soda ash or other industrial processes (e.g., Solvay process); cost-effective and widely used in bulk agriculture.
2. Ammonium Chloride – Feed Grade
Function and Benefits:
Used as a urinary acidifier in ruminants and poultry to maintain electrolyte balance.
Helps prevent urinary calculi and metabolic disorders in animals, especially in cattle, sheep, goats, and pets.
Enhances feed efficiency and supports animal health.
Specifications (Typical):
Parameter | Specification |
---|---|
Appearance | White crystalline powder |
Purity (NH₄Cl) | ≥ 99.5% |
Moisture | ≤ 0.5% |
pH (5% solution) | 4.0–5.8 |
Heavy Metals (as Pb) | ≤ 10 ppm |
Arsenic (As) | ≤ 2 ppm |
Cadmium (Cd) | ≤ 1 ppm |
Mercury (Hg) | ≤ 0.1 ppm |
Complies with standards set by FAO/WHO, EU Feed Additive Regulations, and China GB/T standards for feed grade products.
3. Comparison: Fertilizer Grade vs. Feed Grade Ammonium Chloride
Feature | Fertilizer Grade | Feed Grade |
---|---|---|
Purity | ~99% (by-product), ≥ 99.5% (synthetic) | ≥ 99.5% (synthetic only) |
Nitrogen Content | ≥ 25.4% | N/A (used for other functions) |
Usage | Crop nutrition | Animal feed supplement |
Heavy Metal Limit | Moderate | Very strict |
Regulatory Compliance | Agriculture use standards | Feed and food safety standards |
Price | Lower | Slightly higher |
Applications Overview
Fertilizer Grade: Base fertilizer, top-dressing, used alone or blended in NPK formulations.
Feed Grade: Cattle, poultry, sheep, and pet diets to support health and prevent metabolic disorders.
Other Uses: Some industrial and pharmaceutical uses exist, but require specialized grades.