Tetrakis Hydroxymethyl Phosphonium Sulfate Biocide


Tetrakis hydroxymethyl phosphonium sulfate is a kind of environmental anti-microbial reagent. This biocide is characterized by its low solidity point and fine stability. Tetrakis hydroxymethyl phosphonium sulfate biocide can be reserved for a long time and can easily dissolve in water. This THPS biocide is a kind of new environmental pesticide with high efficacy, low toxicity, and low rudimental.

Tetrakis hydroxymethyl phosphonium sulfate can kill germ and aquatic plants. In 1995, the EPA of the United States ratified it with zero toxicity and awarded it the US Green Chemical prize.

CAS No.:


Molecular Formula:


Molecular Weight:


Structural Formula:

tetrakis hydroxymethyl phosphonium sulfate structural formula


Active Content, %75.0 Min.
Viscosity (at 25 deg c.)30.0-36.0 mPa.S
Density (at 25 deg c.):1.350-1.420
Fe, %0.002 Max.
pH Value2.5-5.0


Tetrakis hydroxymethyl phosphonium sulfate is mainly used in water treatment systems, oil-field operations, and the paper-making industry. The advantage is that the THPS chemical will soon degrade to a nontoxic substance immediately after use. Also, it can be applied to fabric coating as a flame retardant, obviously improving flame-retarding properties.

Package and Storage:

Packed in a plastic drum with a net weight of 250 kg. Keep hermetic.

200l plastic drum


THPS biocide, THPS chemical, tetrakis hydroxymethyl phosphonium sulfate.