Products

Tetrakis (hydroxymethyl) phosphonium Sulfate (THPS) 55566-30-8 Biocide

We are a leading supplier of Tetrakis (hydroxymethyl) phosphonium sulfate (THPS) biocide, a safe liquid biocide that is used to control the growth of bacteria, algae and fungi in oilfield and industrial water treatment applications.

Our EPA registered THPS biocide formulations are commercialized under the brand name Avancid®.

3D model of THPS

What is Tetrakis(hydroxymethyl)-phosphonium Sulfate (THPS) biocide?

THPS is a safe aqueous solution with antimicrobial properties that is significantly less toxic, effective at lower concentrations, and more biodegradable than other traditional biocides.

Our THPS is available in different levels of active phosphorous contents to suit different applications. We sell our EPA registered concentrations under the AVANCID® brand name and offer non-registered THPS concentrations as well.

We have prime Environmental Protection Agency (EPA) registrations for the blending and formulation of tetrakis (hydroxymethyl) phosphonium sulfate (THPS) and glutaraldehyde.

CAS #: 55566-30-8
EINECS #: 259-709-0
Synonyms: Bis[tetrakis(hydroxymethyl)phosphonium] sulfate solution; Octakis (Hydroxymethyl) Diphosphonium Sulfate; THPS
Molecular Formula: C8H24O12P2S

Liquid being inserted into tubes

Tetrakis(hydroxymethyl)phosphonium Sulfate Biocide Concentrations

We supply the following AVANCID® THPS concentrations:

AVANCID® Series

EPA Registered Biocides

 

Avancid® 20

 

Avancid® 35 Avancid® 50 Avancid® 75 Avancid® 75M
EPA registration No.: 74712-4 74712-11 74712-12 74712-3 74712-2
Active content, wt.% 19.4 – 20.6 34.0 – 36.1 48.5 – 51.5 75.0  – 77.0 74.2 – 78.8
P content, wt.%   5.3 – 5.7 7.6 – 8.0 11.4 – 11.8 11.4 – 11.8
pH 3.0 – 5.0 3.0 – 5.0 3.0 – 5.0 3.0 – 5.0 3.0 – 5.0
Specific Gravity (25°C) 1.08 – 1.10 1.16 – 1.19 1.25 -1.28 1.37 – 1.40 1.37 – 1.40
Our non-registered THPS is available in THPS 30% and THPS 75% active ingredient.

Packaging and Handling

SMC Global offers THPS in customized packages and bulk quantities.