73% Industrial Monoammonium Phosphate (MAP)

I. Product Specifications and Standards

This product is Industrial-Grade Monoammonium Phosphate (MAP) with a core indicator of total nutrients (N + P₂O₅) ≥ 73%, belonging to the high-concentration type. A typical ratio is approximately 12% N and 61% P₂O₅. The product appears as white crystals or powder, complying with industrial standards (e.g., relevant chemical industry standards), distinct from agricultural fertilizer standards. Packaging is usually moisture-proof bags of 25kg or 50kg.

II. Core Product Characteristics

High Purity and Content: Industrial-grade products pursue higher active ingredient content and lower impurity levels to meet the requirements of downstream fine chemical production.

Excellent Water Solubility: Dissolves completely and quickly in water to form a clear solution, making it an ideal raw material for formulating high-precision liquid products or conducting chemical reactions.

Strict Impurity Control: Strict limits on impurities such as Chloride Ions (Cl⁻), heavy metals (e.g., Pb, As), and Fluoride (F⁻), far lower than agricultural-grade standards.

Stable Chemical Properties: Acidic and chemically stable, facilitating subsequent processing.

III. Main Application Fields (Non-Agricultural)

This product is mainly used in industrial production processes, not directly as fertilizer:

Water Treatment Chemicals: Serves as an important intermediate for scale inhibitors and corrosion inhibitors, used in industrial circulating cooling water and boiler water treatment.

Flame Retardant Raw Material: A key precursor for producing high-efficiency intumescent flame retardants such as Ammonium Polyphosphate (APP), widely used in plastics, rubber, coatings, and textiles.

Dry Powder Fire Extinguishers: High-purity MAP is one of the main active ingredients in ABC dry powder fire extinguishers.

Fermentation and Bioengineering: Acts as a high-quality nitrogen-phosphorus source for microbial culture media, used in pharmaceutical, food fermentation, and other industries.

Metal Surface Treatment: Used in formulating pretreatment agents for phosphating solutions.

Special Fertilizer Raw Material: Serves as a high-grade phosphorus-nitrogen source for producing high-end fully water-soluble fertilizers and liquid fertilizers.

IV. Production Process and Quality Control

Mostly adopts the neutralization process of thermal phosphoric acid or deeply purified wet phosphoric acid with ammonia to ensure high product purity and low impurities. The production process involves precise control of raw material purity, reaction conditions, and finished product filtration and drying.

V. Usage and Storage Precautions

Safe Operation: Low toxicity, but as a chemical, avoid inhaling dust during operation; dust masks and gloves are recommended. Its acidity may irritate the skin and eyes.

Storage Requirements: Highly hygroscopic and prone to caking; must be strictly sealed and stored in a cool, dry, and well-ventilated warehouse.

Compatibility: Avoid mixed storage and transportation with strong alkaline substances.

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