0086-19851820586 mengling@khonorchem.com
Inorganic salts

JIANGSU KHONOR CHEMI -CALS CO.. LIMITED

Ammonium Pyrophosphate(APP)——Industrial & Specialty Pyrophosphate

Type :lnorganic salts

E No : E452(v)

CAS N:68333-79-9

Qty in 20' FCL:20MTs

Packaging :25kg bags

Product Details

📘 Product Description

Ammonium Pyrophosphate (APP) is a high-purity inorganic phosphate produced through the controlled thermal condensation of ammonium salts and phosphate compounds. It features excellent solubility, strong buffering capacity, and reliable chemical stability, making it suitable for a wide range of industrial, catalytic, flame-retardant, electrochemical, and specialty chemical applications.

APP is commonly used as a phosphate source, catalyst intermediate, flame-retardant component, polymer additive, and fertilizer intermediate. Its reactivity and compatibility with both aqueous systems and solid formulations make it a versatile material for advanced manufacturing and industrial processes.


🧪 Chemical & Physical Properties

  • Chemical Formula: (NH₄)₄P₂O₇

  • Molecular Weight: 260.12

  • Appearance: White crystalline powder or granules

  • Solubility: Highly soluble in water; insoluble in organic solvents

  • pH (1% solution): 6.0 – 8.0

  • Thermal Stability: Good; decomposes gradually upon heating

  • Odor: Slight ammonia-like odor

  • Hygroscopicity: Low to moderate


📊 Specifications

ItemSpecification
Assay (as APP)≥ 98%
Moisture≤ 1.0%
pH (1% solution)6.0 – 8.0
Insoluble Matter≤ 0.1%
Ammonium (NH₄⁺)40–45%
P₂O₅ Content48–52%
Heavy Metals≤ 10 ppm
As≤ 2 ppm
Particle SizeFine / Medium / Customized

(Special grades available for catalyst applications and flame-retardant systems.)


🔧 Applications(非常详细)

1️⃣ Catalyst & Industrial Reaction Systems

  • Used as an intermediate and carrier in catalytic reactions

  • Provides activated phosphate groups for dehydration, oxidation, and polymerization reactions

  • Suitable for petrochemical and inorganic synthesis processes

2️⃣ Flame-Retardant Additives

  • Functions as a phosphorus-based flame-retardant

  • Promotes char formation and reduces flammability

  • Used in plastics, resins, rubber, and specialty coatings

3️⃣ Polymer & Resin Additives

  • Acts as a crosslinking agent or curing promoter

  • Enhances thermal stability and structural performance

  • Applied in epoxy systems and specialty polymers

4️⃣ Electrochemical & Battery Applications

  • Used as a functional phosphate additive

  • Provides ionic stability in certain electrochemical processes

5️⃣ Fertilizer Intermediate (Controlled Use)

  • Can act as a phosphate source

  • Used in specialty formulations or controlled-release fertilizer systems

6️⃣ Laboratory & Technical Applications

  • Important reagent for research laboratories

  • Used in controlled-environment chemical experiments

  • Acts as a precursor for advanced phosphate materials


⭐ Advantages

  • 🔬 High purity suitable for demanding industrial processes

  • 💧 Excellent solubility for liquid-phase reactions

  • ⚙️ Versatility across catalytic, polymer, and flame-retardant applications

  • 🔥 Phosphorus-based flame-retardant capability

  • 🧪 Stable chemical performance and consistent quality

  • 📦 Customizable particle size and grade


📦 Packaging & Storage

Packaging Options

  • 25 kg woven or kraft paper bags

  • 500 kg / 1000 kg jumbo bags

  • Custom packaging available on request

Storage Conditions

  • Store in a cool, dry, well-ventilated place

  • Keep sealed to prevent moisture absorption

  • Avoid exposure to heat or acidic conditions

  • Handle with care to avoid dust formation


📜 Regulatory Status

  • Classified as non-hazardous under global transport regulations

  • Supplied with MSDS, COA, and required export documentation

  • Industrial-grade material; not intended for food or feed use

  • Complies with general chemical handling and environmental standards



Why Choose Jiangsu Khonor Chemicals Co., Limited?

①Over 10 years of experience in chemical and food ingredient exports

②Stable supply capacity and competitive pricing

③Support for diverse molecular weights and performance requirements

④Samples available for quality testing

⑤Professional documentation: COA, MSDS, TDS, and export compliance

⑥Strong focus on global B2B markets

⑦Fast delivery and flexible logistics solutions


Ordering Information

For quotations, specifications, samples, or technical support, please contact:

Jiangsu Khonor Chemicals Co., Limited

Professional Chemical Supplier & Global Exporter

📧 Email: mengling@khonorchem.com

📞 Tel/WhatsApp/WeChat: +86-19851820586

🌏 WhatsApp:https://wa.me/8619851820586


Leave Message

Contact us for more information on Application Consultation, Sample Support, FOB Pricing etc.You will be replied within 8 hours.
*COMPANY:
*NAME:
*E-MAIL:
*Phone:
*Message:

Back to top