XINGFA Tetrakis(hydroxymethyl)Phosphonium Sulfate THPS 75% for oil drilling

Product: Tetrakis (Hydroxymethyl) Phosphonium Sulfate

Abbreviation: THPS

Formula: [(CH2OH)4P]2SO4

CAS: 55566-30-8

1.Appearance: Transparent liquid to light yellow

2.Applications:

It is an environmental friendly biocide with good water solubility, low solidifying point, stable chemical performance,long shelf life, new-type, high-efficiency, wide-spectrum etc.

it's a broad-spectrum biocide against a range of bacteria, especially sulfate reducing bacteria (SRB), and algae. It is also an internationally acknowledged flame-retardants for pure cotton and polyester cotton and its flame-retarding effect can remain for a long time.

3.Specifications:

{[(CH2OH)4P]2SO4} Content: 75.0% MIN

Viscosity(25℃)MPAS: 30.0-36.0

Specific Gravity25℃): 1.350-1.420

Iron(Fe): 0.0015% Max

PH: 2.5 — 5.5

4.Storage: Hermetically sealed

5.Package: 250kg net drums, 1250kg / 1400kg IBC

What's THPS 75% UN? 

THPS 75% UN: 2922

THPS 75% HS Code: 293190

THPS is made from formaldehyde, HCl and PH3, and PH3 is deadly poisonous which is produced from the processing of sodium hypophosphite(SHPP). So if a factory want to produce THPS, they need to produce sodium hypophosphite firstly.