Tetrakis (hydroxymethyl) phosphonium Sulfate Urea Precondesate (THPS-UPC)

We are a leading and experienced manufacturer of Tetrakis (hydroxymethyl) phosphonium sulfate urea precondensate (THPS-UPC) used as flame retardants in the textile industry. We can produce high-quality THPS-UPC at competitive prices with on-time delivery.

3D model of THPS-UPC

What is Tetrakis-(hydroxymethyl)-phosphonium Sulfate Precondesate (THPS-UPC)?

Tetrakis(hydroxymethyl) phosphonium sulfate urea precondensate is an important water-soluble, organophosphorus compounds used as textile auxiliaries in flame retardant finishing applications.

Our THPS-UPC is of high purity, low toxicity to the environment, and customizable.

CAS #: 63502-25-0
EINECS #: 613-239-6
Synonyms: tetrakis (hydroxymethyl) phosphonium sulfate urea; THPS-UPC; Phosphonium, tetrakis(hydroxymethyl)-, sulphate (2:1) (salt), polymer with urea; Aflammit SAP
Molecular Formula: C9H24N2P2SO11

Liquid being inserted into tubes

Tetrakis(hydroxymethyl)phosphonium Sulfate Urea Precondesate Grades

Product Number and Grades

SMC Global 654


SMC Global 656

THPS-UPC-Soft Hand

Assay, %

67.38 – 69.98


Phosphorous Content,%

9.5 – 9.7

9.5 – 9.7

Color, APHA

100 max.

100 max.


4.0 – 6.0

3.0 – 5.0

Packaging and Handling

SMC Global offers THPS-UPC packaged in a 1250 KG IBCs and bulk quantities.