Tetrakis(Hydroxymethyl)Phosphonium Chloride (THPC)

Phosphonium flame-retardant & biocide · 80% solution

Description

A chlorinated hydroxymethyl phosphonium salt used mainly as a durable flame retardant for cotton, and as a leather tanning agent and oilfield biocide.

CAS 号124-64-1

分子式C4H12ClO4P

分子量190.56

外观无色或淡黄色液体

活性物含量80–82%

Technical Data

项目	指标
外观	无色或淡黄色液体，有特征气味
活性物含量 %	80.0–82.0
活性磷含量 %	13.0–13.4
pH 值	3.0–5.0
密度（20 ℃）g/cm³	≥1.32
粘度（25 ℃）cps	≤50.0

Key Properties

High flame-retardant efficiency, imparting durable flame resistance to cotton
Improves tear strength of treated fabric with minimal effect on hand
Also exhibits biocidal activity for oilfield and industrial water treatment
Differs from THPS in chloride content — select according to system requirements

Applications

Durable flame-retardant finishing of cotton and cellulosic fabrics
Leather tanning and flame-retardant treatment of leather
Biocide for oilfield injection water and industrial cooling water
Wood preservation and flame-retardant impregnation

Packaging & Storage

Packaging: 25 L pail, 200 L drum, 1000 L IBC or ISO tank.

Storage: Store sealed in a cool, dry place away from high temperature and strong alkali. One year shelf life unopened.

Handling & Safety

Corrosive; may release formaldehyde on contact with alkali. Wear protective equipment and maintain ventilation.

Tetrakis(Hydroxymethyl)Phosphonium Chloride (THPC)