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Ammonium Polyphosphate(APP-1)

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Post Date:	May 12,2025
Expiry Date:	May 12,2026
Detailed Description:	Cas No. :68333-79-9 Quantity: 5000Metric Tons Specs:Flame retardant Price:3.2 USD Kilograms Payment Method: TT OR LC Ammonium polyphosphate (APP-1 ) Molecular Formula: (NH4PO3)n Appearance : White powder Cas No.68333-79-9 Specifications: P (%): 31-32 N (%) 14 min Degree of polymerization 1500 min Density (g/cm3) 1.9(g/cm3) Decomposition temperature 275℃ max Solubility in water (25℃g/100mlH2O) 0.2 g max Viscosity (25°C in 10%suspension) 100 mpa.s max PH 5.5~7.5 Average particle size 15um max ? Crystal :Phase II Intumescent coatings On account of its low water solubility, APP-1 is particularly suitable as an ”acid donor” for intumescent coatings. Other essential components of intumescent systems include a binder, a carbon donor (e.g. pentaerythritol) and a blowing agent (e.g. melamine). On exposure to flame, intumescent coatings form a carbonaceous foam which effectively shields the underlying material from temperature increases. Steel structures coated with intumescent paints can meet the requirements of fire resistance classes specified in EN, DIN, BS, ASTM and others. The application of APP-1 based intumescent coatings on wood or plastics enables these materials to qualify for Building Material Class B (DIN EN 13501-1). APP-1 imparts a good flame-retardant effect to adhesives and sealants when it is incorporated into the base formulation at the rate of 10 - 20 %. Polyurethane foams APP-1 is a suitable non-halogenated flame retardant for polyurethane foams. If handling of APP-1 as a solid is not possible we recommend the dosage of the flame retardant by preparing an APP-1/polyol-suspension. Because of the low acid number of APP-1, it is also possible to incorporate this flame retardant in an APP-1/isocyanate suspension. To prevent the solids from settling, the APP-1 suspensions should be stirred or circulated by pump. The stirrers commonly found in service tanks are adequate for this purpose. Other applications APP-1 has an excellent flame-retardant effect in cellulose-containing materials such as paper and wood products. With chipboard products, the DIN EN 13501-1 classification can be achieved by adding 15 - 20 % APP-1 Because of its high heat stability, APP-1 is an essential component in intumescent formulations for thermoplastics, particularly polypropylene, for which the classification UL 94-V0 is specified for applications in the electrical sector. Casting resins based on epoxy resins or unsaturated polyester resins achieve the classification UL 94-V0 with APP-1 Safety and Handling For regulatory details such as the classification and labeling as dangerous substances or goods please refer to our corresponding material safety data sheet. Minimum shelf life is 12 months from the date of shipping when stored according to the said conditions.

CAS Registry Number:	68333-79-9
Synonyms:	;PNP;polyphosphoric acids ammonium salts;APP;APP-0;XAP-01;APP-3;APP-1;ammonium polyphosphate flame retardant;Water-SolubleAmmoniumPolyphosphate;CrystallinePhaseIiAmmoniumPolyphosphate;Ammonium Polyphosphate (APP);CF-2;Polyphosphoric acids, ammonium salts;
Molecular Formula:	(NH₄PO₃)n

Company:	Zhenjiang Xingxing Flame Retardant Co.,Ltd.(Zhenjiang Sanwa Flame Retardant Technology co.,ltd.) [ China ]
Contact:	Wang guohua
Tel:	+86-511-84417435
Fax:	+86-511-84411179
Email:	wgh@xxflameretard.com

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Ammonium Polyphosphate(APP-1)

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68333-79-9