Phosphorus chemicals

Tetrakis Hydroxymethyl Phosphonium Chloride |CAS124-64-1

  • CAS: 124-64-1
  • MF: [(CH2OH)4P]Cl
  • Min Order Quantity: 1Kg
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Tetrakis Hydroxymethyl Phosphonium Chloride is an excellent flame retardant and fungicide. It has reducing property, can react with oxidizing agent, higher density, better water solubility, and can react with urea to condense into THPC-Urea.The main role of Tetrakis Hydroxymethyl Phosphonium Chloride is to play a flame retardant role in cotton and leather, and to play a function of killing harmful microorganisms in the treatment of petroleum water. It has a unique odor. Non-combustible, slightly acidic, corrosive. Easy biodegradation, friendly to the environment


Chemical parameters

English name: Tetrakis Hydroxymethyl Phosphonium Chloride Chloride/TetramethylolphosphoniumChloride(THPC)

CAS No.: 124-64-1

UNN No.: 2922

H.S No.: 2931909090

Molecular Formula: [(CH2OH)4P]Cl

Molecular weight: 190.56

Physicochemical properties: aqueous solution, weak acid, irritating odor and corrosive, easily biodegradable.


Main index


Specific Gravity g/ml (at 25℃):1.25-1.35

Viscosity cP(mPa.s)(at 20℃):10-20

Active phosphorus:11.0%MIN

PH (at 20℃):3-4

Appearance:light yellow transparent liquid



1, Tetrakis Hydroxymethyl Phosphonium Chloride is a kind of high efficient and broad-spectrum insecticide, which can effectively prevent and control many kinds of pests, such as aphids, ticks and so on. Tetrakis Hydroxymethyl Phosphonium Chloride also has a rapid killing effect, usually it takes only a few minutes to see the effect after contact. Tetrakis has a low toxicity, even to humans or other non-target organisms will not cause too much harm.

2, Tetrakis Hydroxymethyl Phosphonium Chloride (THPC) is mainly used for flame retardant treatment of fabrics, as well as plastics, paper and other additive flame retardants, can also be used in organic synthesis. In Europe and China's Henan, Hebei, Sichuan and other places in the printing and dyeing enterprises are used as a large number of efficient and environmentally friendly flame retardants.

3, Tetrakis Hydroxymethyl Phosphonium Chloride (THPC) can be synthesized into Tetrakis Hydroxymethyl Phosphonium Chloride urea condensate (THPC-U) with a content of >70% after adding urea, the new flame retardant can greatly increase the washing times of cotton textiles, but also make the cotton fabrics still maintain a good degree of softness and feel, the tearing index remains unchanged, and the THPC-U maximizes the maintenance of the fabric's original properties.


Packaging, storage and transportation

250kg polyethylene plastic drum or 1000kg IBC; stored in cool, ventilated warehouse, sealed. It should be stored separately from oxides and edible chemicals.


Tetrakis Hydroxymethyl Phosphonium Chloride(THPC) is mainly used in the flame retardant treatment of fabrics, and is also used as an additive flame retardant for plastics, paper products, etc. It can also be used in organic synthesis. After adding urea can be synthesized with a content of > 70% of THPC-U, can greatly increase the number of times the cotton textiles wash resistance, but also to make cotton fabrics still maintain a good softness and feel, the tearing force index remains unchanged, THPC-U maximize the maintenance of the fabric's original performance. Tetrakis Hydroxymethyl Phosphonium Chloride can be used to replace the old, toxic fungicides. It is used in industrial water treatment, papermaking, leather blending, oil field mining and production. It is characterized by high efficiency, broad-spectrum, rapid killing and low toxicity, which makes it widely used in various fields.

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