Description

Thiophosphoric Acid CAS NO 13598-51-1 is an important organophosphorus compound where sulfur atoms partially replace oxygen in the phosphoric acid structure, offering unique reactivity. This chemical serves as a versatile intermediate and reagent in the synthesis of more complex sulfur- and phosphorus-containing molecules. It is particularly valuable for industries involved in specialty chemical manufacturing, agrochemicals, and materials science where its distinct properties enable novel synthetic pathways.

Application

• Agrochemical Intermediate: Key precursor in the synthesis of certain organophosphate insecticides and herbicides.
• Lubricant & Fuel Additive: Used in the formulation of extreme-pressure additives and anti-wear agents for industrial lubricants.
• Flame Retardant Synthon: Serves as a building block for creating phosphorus-based flame retardants for polymers and textiles.
• Metal Extraction & Surface Treatment: Employed in hydrometallurgical processes and as a component in metal cleaning or phosphating formulations.
• Chemical Research & Development: A valuable reagent for synthesizing novel thiophosphate esters and other specialty chemicals in R&D laboratories.
• Polymer Modification: Can be used to introduce thiophosphate groups into polymer chains to alter material properties.

Basic Information

Product Name	Thiophosphoric Acid
CAS No.	13598-51-1
Molecular Formula	H3O4PS
Molecular Weight	162.05 g/mol
Synonyms	Phosphorothioic Acid; Monothiophosphoric Acid; O,O-Dihydrogen phosphorothioate; Thiophosphoric acid (H3PO3S); Phosphorothioic acid (H3PO3S); Phosphorothioic acid (HO)3PS
EINECS	237-069-5

Quality Control

Our production of Thiophosphoric Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including assay and impurity profile determination, to ensure consistency and reliability for industrial applications. Certificates of Analysis (COA) documenting purity and key specifications are provided with each shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is between 15°C and 25°C. Containers should be kept tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Titration)	≥ 95.0%
Water Content (KF)	≤ 2.0%
Density (20°C)	~1.65 g/mL

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