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  • Tetrakis(hydroxymethyl)phosphonium Sulfate (THPS) CAS 55566-30-8
  • Tetrakis(hydroxymethyl)phosphonium Sulfate (THPS) CAS 55566-30-8

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

Tetrakis(hydroxymethyl)phosphonium Sulfate, commonly abbreviated THPS, CAS 55566-30-8, is an aqueous industrial active supplied as a 75% solution for water-treatment, oilfield and paper-process formulations. Confirm the required grade, then request a quotation with COA/TDS/SDS for bulk supply.

  • CAS: 55566-30-8
  • Synonyms: THPS, Bis[tetrakis(hydroxymethyl)phosphonium] Sulfate
  • Einecs: 259-709-0
  • Molecular Formula: C₈H₂₄O₁₂P₂S
  • Grade: 75% aqueous industrial grade
  • Package: 200 L HDPE drums; 1000 L IBC totes by agreement
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Product Description

Tetrakis(hydroxymethyl)phosphonium Sulfate (THPS) CAS 55566-30-8 is bis[tetrakis(hydroxymethyl)phosphonium] sulfate, with EC 259-709-0 and molecular formula C₈H₂₄O₁₂P₂S.

Synonyms: THPS; Bis[tetrakis(hydroxymethyl)phosphonium] Sulfate.

CAS: 55566-30-8.

Molecular formula: C₈H₂₄O₁₂P₂S.

It is supplied as a 75% aqueous solution.

It is positioned as an aqueous industrial active for water-treatment, oilfield and paper-process formulations.

It is not a ready-to-dose field product or a complete microbiological-control program.

It is used in industrial water-treatment and process-water formulations.

It is used in oilfield injection-water, drilling, completion and production-treatment programs.

It is used in paper-manufacturing process formulations where THPS is specified.

It is used in specialty industrial systems requiring a THPS aqueous-active component.

It is used as a biocidal active in industrial cooling and process-water treatment and oilfield systems.

Commercial THPS 75% solution is generally acidic with a pH around 2.5-5.5 and density around 1.35-1.42 g/cm3.

The solution is usually sold with at least 75% active THPS and a total-phosphorus level around 11-12%.

Confirm active THPS content, pH, density, iron limit and the stated industrial application.

Store in tightly closed containers in a cool, dry, well-ventilated area.

Use suitable PPE when handling and follow the current SDS.

The page is an RFQ entry point and does not state stock, price, MOQ, or fixed lead time.

For an RFQ, state the intended application, required grade, quantity, packaging, destination, and document needs.

FAQ - Technical & Supply Chain

  • Q:

    What is Tetrakis(hydroxymethyl)phosphonium Sulfate THPS CAS 55566-30-8?

    A: Tetrakis(hydroxymethyl)phosphonium Sulfate, commonly abbreviated THPS, is a phosphonium salt with molecular formula C8H24O12P2S. This product is supplied as a 75% aqueous solution for use as an active component in industrial water-treatment, oilfield and paper-process formulations.
  • Q:

    What are the main applications of THPS 75%?

    A: THPS is used as a biocidal active in industrial cooling and process-water treatment, oilfield injection and production-water systems, and paper-manufacturing process formulations. It is blended into site-specific treatment programs rather than applied directly as a complete program.
  • Q:

    What pH and density can be expected for THPS 75%?

    A: Commercial THPS 75% solution is generally acidic with a pH around 2.5-5.5 and density around 1.35-1.42 g/cm3. These solution properties affect dosing, materials compatibility and blending with other water-treatment chemicals.
  • Q:

    Why is active content important for THPS solution?

    A: The solution is usually sold with at least 75% active THPS and a corresponding total-phosphorus level around 11-12%. Formulation dosage must be based on active THPS content rather than total liquid volume to achieve the intended microbial-control rate.
  • Q:

    Is THPS the same as THPC or THP chloride?

    A: No. THPS is the sulfate salt of the tetrakis(hydroxymethyl)phosphonium cation, while THPC is a chloride-based product and THP may refer to other phosphonium derivatives. The anion, active content, handling and compatibility can differ, so they should not be interchanged.

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