(NH4PO3)N Intumescent Flame Retardant With Phosphorus And Nitrogen No halogen

Place of Origin CHINA
Brand Name Taifeng
Certification ISO9001, REACH, SGS
Model Number TF-201
Minimum Order Quantity 25kgs
Packaging Details 25kg/bag, 24mt/20'fcl without pallets, 20mt/20'fcl with pallets
Payment Terms D/P, T/T

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Product Details
Molecular Formula (NH4PO3)n N>1000 CAS NO 68333-79-9
HS CODE 28353990 Halogen Free
Smoke Low Application Paint, Coating
Appearance White Powder Self Time 1 Year
Storage In Dry And Cool Place
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(NH4PO3)n Intumescent Flame Retardant


(NH4PO3)n Intumescent


(NH4PO3)n Flame Retardant

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Product Description

(NH4PO3)N Intumescent Flame Retardant With Phosphorus And Nitrogen No Halogen​


TF-201 is ammonium polyphosphate phase II, our most popular product, it's equal to Clariant AP422 used in paint, coating, plastic, and so on, especially for steel paint.

(NH4PO3)N Intumescent Flame Retardant With Phosphorus And Nitrogen No halogen 0

Specification :

Specification TF-201 TF-201S
Appearance White powder White powder
P2O5 (w/w) ≥71% ≥70%
N Content (w/w) ≥14% ≥14%
Decomposition Temperature (TGA, 99%) >275℃ >275℃
Solubility (10% aq. , at 25ºC) <0.45% <0.7%
pH value ( 10% aq. At 25ºC ) 5.5-7.5 5.5-7.5
Viscosity (10% aq, at 25℃) <20 mpa.s <20 mpa.s
Moisture (w/w) <0.25% <0.25%
Average Partical size (D50) 15~25µm <12µm


1 . Intumescent coatings, on account of its low water solubility, TF-201 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);

2 . Polyurethane foams, TF-201 is a suitable non-halogenated flame retardant for polyurethane foams. If the handling of TF-201 as a solid is not possible we recommend the dosage of the flame retardant by preparing a TF-201/polyol-suspension;

(NH4PO3)N Intumescent Flame Retardant With Phosphorus And Nitrogen No halogen 1


Ammonium Polyphosphate Flame Retardant


Steel, wood and even reinforced concrete are effectively protected from open flame by special fire-retardant paints. Up to 25 percent of their composition is a flame retardant that swells when heated. The main such substance is ammonium polyphosphate. It is an inorganic derivative of phosphoric acid, widely used as a flame retardant.

(NH4PO3)N Intumescent Flame Retardant With Phosphorus And Nitrogen No halogen 2

Ammonium polyphosphate is used not only in the manufacture of fire retardant paints. It is also used in the manufacture of impregnations, varnishes, mastics, plastics and cable sheaths. Today, for many, it is also important to buy ammonium polyphosphate because it is safe from an environmental point of view. There are no halogens in this substance - poisons that pose a danger to nature and man. The world has long been switching to halogen-free flame retardants, since protection against fire should not be accompanied by health risks.

(NH4PO3)N Intumescent Flame Retardant With Phosphorus And Nitrogen No halogen 3

Manufacturers offer ammonium polyphosphate in two versions - with crystalline phase I and II. They differ in molecular structure, and with it in certain properties. In phase I, the structure is linear, and the chain length varies. Its decomposition temperature is lower in comparison with phase II, and its solubility in water is higher. In turn, in phase II, the molecular structure is more complex and branched. Her molecular weight is greater, higher and thermal stability; this variety dissolves in water worse. Ammonium polyphosphate is used not only as a flame retardant. It is involved in other areas of industry, and various modifiers are added to crystalline phase II to obtain specific properties.


Fire Proofing and Intumescent Coatings - DCI Flooring | Industrial ...


Q1. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.

Q2. How about your delivery time?
A: Generally, it will take 1 to 15 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

Q3. Can I have a sample order?
A. Yes, we can provide free sample for quality checking, but the courier charge should be paid by your side.

Q4. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.