Description

Pentasodium 2-Phosphonatobutane-1,2,4-Tricarboxylate is a high-performance, multi-functional phosphonate-based chelating agent and scale inhibitor. This compound is engineered to deliver superior sequestration of metal ions, particularly calcium and magnesium, under demanding alkaline conditions. It is essential for industrial water treatment, detergent formulation, and cleaning product manufacturing where scale prevention and dispersion are critical. Its robust performance makes it a key component for formulators seeking to enhance product efficacy and process stability.

Application

• Industrial Water Treatment: Primary application as a highly effective scale and corrosion inhibitor in cooling water systems, boiler water, and reverse osmosis membranes.
• Detergent & Cleaning Formulations: Acts as a powerful builder and sequestrant in laundry detergents, dishwashing liquids, and industrial cleaners to inactivate water hardness ions and improve surfactant performance.
• Pulp & Paper Processing: Used as a chelating agent in bleaching processes to stabilize peroxides and control metal ion catalysed decomposition.
• Textile Auxiliary: Employed in dyeing and bleaching baths to sequester metal ions that can cause shade variation or fabric damage.
• Personal Care Products: Incorporated into formulations such as shampoos and liquid soaps as a chelant to enhance stability and shelf life.
• Oilfield Chemicals: Utilized in scale squeeze treatments and as an additive in drilling fluids to prevent mineral scale deposition.

Basic Information

Product Name	Pentasodium 2-Phosphonatobutane-1,2,4-Tricarboxylate
CAS No.	67170-90-5
Molecular Formula	C7H4Na5O10P
Molecular Weight	427.04 g/mol
Synonyms	PBTC, Pentasodium 2-Phosphonobutane-1,2,4-Tricarboxylate; 2-Phosphonobutane-1,2,4-Tricarboxylic Acid, Pentasodium Salt; Phosphonobutane Tricarboxylic Acid, Sodium Salt; PBTC-Na5; Bayhibit AM; Dequest 7000; 1,2,4-Butanetricarboxylic Acid, 2-Phosphono-, Pentasodium Salt
EINECS	266-622-6

Quality Control

Our Pentasodium 2-Phosphonatobutane-1,2,4-Tricarboxylate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for active content, pH, and impurity profiles. Certificates of Analysis (COA) are provided with each shipment to guarantee traceability, consistency, and compliance with industry standards for water treatment and detergent applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); ensure containers are kept tightly sealed after opening to prevent absorption of atmospheric moisture and caking.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Active Content (as PBTC Acid)	≥ 50.0 %
pH (1% aqueous solution)	6.0 - 8.0
Density (20°C)	1.30 - 1.40 g/cm³
Iron (Fe)	≤ 10 ppm
Chloride (Cl)	≤ 100 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.