PRODUCTS

TETRAKIS HYDROXYMETHYL PHOSPHONIUM SULFATE (THPS)

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

CAS #: 55566-30-8
EINECS #: 259-709-0

Molecular Formula: C8H24O12P2S
Molecular Weight: 406.28 g/mol

IUPAC Name: tetrakis(hydroxymethyl)phosphanium;sulfate

Color / Form: Crystalline solid
Boiling Point: 232 °F at 760 mmHg
Melting Point: -31 °F
Flash Point: greater than 200 °F
Solubility: greater than or equal to 100 mg/mL at 64 °F
Density: 1.381 at 72 °F
Vapor Pressure: 32 mmHg at 124 °F ; 150.5 mmHg at 163 °F

Tetrakis hydroxymethyl phosphonium sulfate (THPS) is a kind of environmental anti-microbial reagent.
Tetrakis hydroxymethyl phosphonium sulfate (THPS)’s characterized by its low solidity point and fine stability.
Tetrakis hydroxymethyl phosphonium sulfate (THPS) biocide can be reserved for a long time and easily dissolve in water.

Tetrakis hydroxymethyl-phosphonium sulfate is a new environmental pesticide with high efficacy, low toxicity, and low rudimental.
Tetrakis hydroxymethyl phosphonium sulfate (THPS) chemicals can kill germ and aquatic plants.

The biocide tetrakis hydroxymethyl phosphonium sulfate (THPS) is widely used applications such as industrial cooling systems and in oil and gas operations.
In the oil industry, Tetrakis hydroxymethyl phosphonium sulfate (THPS) is also used to dissolve iron sulfide formed in oil wells and is compatible with other water treatment reagents.
The Tetrakis hydroxymethyl phosphonium sulfate (THPS) molecule has a short chain length.
Conventionally, it has been understood that ammonium quaternary salts or phosphonium with at least one long chain were active in terms of biocides, but those with small chains would normally be considered inactive.
Thereafter, Tetrakis hydroxymethyl phosphonium sulfate (THPS) was found to be a fast acting bactericide and particularly effective against sulfate-reducing bacteria, which cause pitting corrosion.
Another environmental advantage is that the Tetrakis hydroxymethyl phosphonium sulfate (THPS) is slightly oxidized in the atmosphere to tris hydroxymethyl phosphonium oxide (THPO) which has low aquatic toxicity and is not considered an environmental hazard.

Tetrakis hydroxymethyl phosphonium sulfate (THPS) is an organophosphorus compound .

One of the main application is to use Tetrakis hydroxymethyl phosphonium sulfate (THPS) as Tanning agent in the leather industry.

In this case Tetrakis hydroxymethyl phosphonium sulfate (THPS) can be used as chrome-free (metal free) tanning system in the wet white process and give the benefits of a lower allergology phenomena and a better biodegradability.

Tetrakis hydroxymethyl phosphonium sulfate (THPS) is used in water treatment and oil field as bactericide.

Tetrakis hydroxymethyl phosphonium sulfate (THPS) is also used as flame-retardant as it an internationally acknowledged flame-retardants for pure cotton and polyester cotton and its flame-retarding effect can remain for a long time.

Tetrakis hydroxymethyl phosphonium sulfate (THPS) may be obtained by reaction between PH3 (phosphine, co-product of sodium hypophosphite), sulfuric acid and formaldehyde.

Tetrakis hydroxymethyl phosphonium sulfate (THPS) is used as a flame retardant in textiles, especially cotton and as a cease and rot resistance agent in fabrics.
Tetrakis hydroxymethyl phosphonium sulfate (THPS) acts as a biocide against SRB (sulfate reducing bacteria known as Desulfuvibrio Desulfuricans) which produces enzymes to accelerate reduction reaction of sulfates to corrosive hydrogen sulfide which causes corrosion of iron material in water system.

Tetrakis(hydroxymethyl)phosphonium chloride is a type of environmental-friendly water treatment micro biocide that is made of THPS chemicals.
Tetrakis hydroxymethyl phosphonium sulfate (THPS) can easily withhold sulfate-reducing microorganisms.

Most of the aerobic bacteria such as microorganisms form biofilm inside the enhanced oil process of recovery, manufacturing, and also other supporting systems.
For example water injection equipment, well water disposal facilities, water holding tanks, recirculating water treatment systems, as well as pipelines.

Tetrakis(hydroxymethyl)phosphonium chloride can also be good at managing bacterial development in drilling muds and also stimulation liquids for gas and oil wells.
The Tetrakis hydroxymethyl phosphonium sulfate (THPS) biocide is actually known for its low solidity point and excellent stability.

Tetrakis(hydroxymethyl)phosphonium chloride is synthesized by the following methods.

-Using hydrogen chloride as the catalyst and phosphine and alkyl aldehydes as the reaction raw materials.

-Using formaldehyde and phosphine as reaction raw materials, controlling pressure and temperature in a certain range, formaldehyde phosphine reacts in the presence of a small amount of dispersed metal or compound, through a two-step sequential reaction, i.e., using phosphine with excess formaldehyde under high-pressure, controlling a certain temperature to obtain a solution of trimethylolphos hemiacetal, and finally treated with acid.

-Metal phosphide, formaldehyde, and inorganic acids are used as raw materials.

Uses:

Tetrakis(hydroxymethyl)phosphonium chloride uses are so wide.

Water Treatment:
Tetrakis(hydroxymethyl)phosphonium chloride (THPS) should be added to a waterflood system at a point where uniform mixing will occur.

First step: add 93 -350 ppm Tetrakis hydroxymethyl phosphonium sulfate (THPS) chemical for a noticeably fouled system.
When added to a flowing system, slug dose for 2 -6 hours based on flow rates.
Repeat as necessary until control is achieved.

Second step: once control has been achieved.
Add 14 -98 ppm THPS biocide weekly or as needed to maintain control.
As for continuous treatment, THPS can be dosed continuously at a level of 14 -67 ppm.

Oil and Gas Production and Transmission Systems and Pipeline:

Tetrakis hydroxymethyl phosphonium sulfate (THPS) 75% solution should be added at a point in the pipeline where uniform mixing will occur.

The application should be conducted to ensure maximum distribution of products through the internal surface of the pipeline by adding an amount of biocide which eventually comes out the other end of the pipeline.

The criteria for the success of the treatment will be a reduction in the bacterial count and/or corrosion rates.
Adding steps is the same as that of water flooding.
As for continuous treatment, tetrakis hydroxymethyl phosphonium sulfate can be dosed continuously at a level of 14 -100 ppm.

Drilling Muds, Well Completion, and Workover Fluids:

Tetrakis hydroxymethyl phosphonium sulfate (THPS) 75 should be added to these fluids at a point where uniform mixing will occur.
Add 33-1400 ppm of product to a freshly prepared fluid depending on the severity of contamination.

Gas Storage Well systems:

Individual injection wells should be treated with Tetrakis hydroxymethyl phosphonium sulfate (THPS) 75% at the same dosage and same steps as described underwater flooding.

Injections should be repeated as needed to maintain control.

Individual drips should be treated with a sufficient quantity of product to produce a concentration of 33.3 -133.3 ppm when diluted by the water present in the drip.

Injections should be repeated as needed to maintain control.

Some oilfield drilling service companies in the US and Canada started to use Xanthan gum, THPS biocide, and Curdlan gum in the water flooding process.

Tetrakis(Hydroxymethyl)Phosphonium Sulfate (THPS) Applications

Textile Auxiliaries
Tetrakis hydroxymethyl phosphonium sulfate (THPS) is of importance in the textile industry and is used to produce crease-resistant flame retardant finishes on cotton textiles and cellulosic fabrics.
Tetrakis hydroxymethyl phosphonium sulfate (THPS) is also an excellent organic tanning agent for the production of chrome and metal-free leathers.

Industrial and Commercial Water Treatment
Tetrakis Hydroxymethyl Phosphonium Sulfate (THPS) formulations can be also used for the control of bacteria, algae, and fungi in industrial/commercial recirculating cooling water systems, in heat transfer water systems, and in industrial process water systems.

Preservative
Tetrakis Hydroxymethyl Phosphonium Sulfate (THPS) formulations present also preservative properties for controlling the growth of bacteria and fungi in water-based paints and coatings, adhesives, latex paints, starch pigment, extender slurries, paints, latex, and antifoam emulsion systems.

Uses

Tetrakis hydroxymethyl phosphonium sulfate (THPS) is used to make crease-resistant and flame-retardant finishes for textiles, e.g., children's sleepwear;
Tetrakis hydroxymethyl phosphonium sulfate (THPS) is also used as a biocide

Hydraulic fracturing uses a specially blended liquid which is pumped into a well under extreme pressure causing cracks in rock formations underground.
These cracks in the rock then allow oil and natural gas to flow, increasing resource production.
... Chemical Name: Tetrakis hydroxymethyl-phosphonium sulfate;
Chemical Purpose: Eliminates bacteria in the water that produces corrosive by-products;
Product Function: Biocide.

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

Industry Uses

-Anti-scaling agent
-Chelating agent
-Corrosion inhibitor
-Corrosion inhibitors and anti-scaling agents
-Flame retardants

Methods of Manufacturing

Tetrakis hydroxymethyl phosphonium sulfate (THPS) is manufactured in a batch process that involves the chemical reaction of phosphine gas with aqueous formaldehyde in the presence of sulfuric acid and water.
Tetrakis hydroxymethyl phosphonium sulfate (THPS) exists in equilibrium with tris (hydroxymethyl)phosphine and methylene glycol.
Under manufacturing and shipping conditions, the equilibrium strongly favors the formation the formation of THPS.

Applications

-precursors in flame retardant manufacture process
-biocide in water system
-Tanning agent in the leather industry

Tetrakis hydroxymethyl phosphonium sulfate (THPS) is an environment-friendly phosphonium salt biocide applied in industrial cooling systems, oil field operations, and paper-making industry.
Tetrakis hydroxymethyl phosphonium sulfate (THPS) can degrade to a nontoxic substance immediately after use.
Tetrakis hydroxymethyl phosphonium sulfate (THPS) is also applied as flame retardant in cotton, dacron-cotton fibers.

Advantage of the wet white tanned leathers, using Tetrakis hydroxymethyl phosphonium sulfate (THPS) offers:

-a light color and pastel shades
-They can reach shrink temperatures of at least 70 grad C
-High softness
-Good lightness
-Feeling of naturalness
-Pleasant to the touch
-Beauty that lasts for a long time
-Can be burned without the risk of hexavalent chromium formation

Shelf Life

Under proper storage conditions, the shelf life is 12 months.

SYNONYMS:

TETRAKIS(HYDROXYMETHYL)PHOSPHONIUM SULFATE
55566-30-8
THPS
Octakis(hydroxymethyl)phosphonium sulfate
TETRAKIS(HYDROXYMETHYL) PHOSPHONIUM SULFATE
5I8RSL9E6S
Bis(tetrakis(hydroxymethyl)phosphonium)sulfate (salt)
tetrakis(hydroxymethyl)phosphanium;sulfate
DTXSID0021331
bis[tetrakis(hydroxymethyl)phosphonium] sulfate
Phosphonium, tetrakis(hydroxymethyl)-, sulfate (2:1)
Retardol S
Pyroset TKO
CCRIS 316
HSDB 4215
NCI-C55050
EINECS 259-709-0
UNII-5I8RSL9E6S
Tetrakis(hydroxymethyl)phosphonium sulphate(2:1)
tetrakis (hydroxymethyl) phosphonium sulfate
EC 259-709-0
SCHEMBL195676
DTXCID001331
CHEMBL1549844
YIEDHPBKGZGLIK-UHFFFAOYSA-L
Tox21_200928
AKOS016010449
Tetrakis(hydroxymethyl)phosphoniumsulfate
NCGC00091951-01
NCGC00091951-02
NCGC00258482-01
CAS-55566-30-8
FT-0659692
T1089
J-519902
Q27262300
TETRAKIS(HYDROXYMETHYL)PHOSPHONIUM SULFATE [HSDB]