Water Treatment Biocides

THPS 75%                                                          Email:sales@ozziechemical.com

For Industrial Water Treatment Applications

Chemical Name: Tetrakis(hydroxymethyl)phosphonium sulfate(THPS)

CAS Number: 55566-30-8


THPS 75% Water Treatment Microbiocide is a broad-spectrum biocide developed to inhibit the growth of algae, bacteria, yeasts and fungi in process waters used in various industrial applications. THPS-75 is effective in both acid and alkaline environments. It is especially effective against sulfate-reducing bacteria (SRB) which are particularly troublesome in enhanced oil recovery operations, such as injection water treatment, top-side systems, pipeline protection and storage.

Typical Properties

These properties are typical but do not constitute specifications


Clear, colorless to yellow liquid

Active Ingredient

75% min

Total P content

11.0% min

Specific Gravity (g/ml)

1.37 - 1.41 at 25°C

Viscosity (20°C):




Special Features and Benefits

Inhibits microbial growth in enhanced oil recovery systems, industrial recirculating cooling waters, and non-food contact paper manufacturing.

• Broad spectrum biocide against a range of bacteria, especially sulfate reducing bacteria (SRB), and algae (blue-green, green and other types such as yellow-green, brown and mustard algae).

• Miscible in all proportions with every type of water, including seawater.

• Is readily deactivated under controlled conditions.

• No organic solvents / aqueous formulation.

• Outstanding chemical stability and good compatibility with most water treatment chemicals.


250Kg per drum or 1250Kg per IBC drum.