Description

Disodium Stannous Citrate is an organotin compound of significant industrial importance, combining the properties of tin(II) and citrate. This material matters for its role as a versatile reducing agent and stabilizer in specialized chemical syntheses and formulations. It is primarily needed by manufacturers in the pharmaceutical, plating, and polymer industries for applications requiring controlled redox chemistry.

Application

• Pharmaceutical Synthesis: Acts as a specialized reducing agent in the production of certain active pharmaceutical ingredients (APIs).
• Electroplating & Surface Treatment: Used in tin and tin-alloy plating baths to improve deposit quality and stability.
• Polymer Stabilizer: Functions as an antioxidant and heat stabilizer in specific polymer systems, particularly PVC.
• Catalyst Precursor: Serves as a starting material or intermediate in the preparation of organotin catalysts.
• Food Packaging Coatings: Employed in certain barrier coatings for metal packaging due to its corrosion-inhibiting properties.
• Laboratory Reagent: Utilized in analytical chemistry and research as a source of stannous ions in complexometric reactions.

Basic Information

Product Name	Disodium Stannous Citrate
CAS No.	25088-96-4
Molecular Formula	C6H4Na2O7Sn
Molecular Weight	352.78 g/mol
Synonyms	Stannous Citrate Disodium Salt; Tin(II) Citrate Disodium Salt; Disodium Tin Citrate; Disodium Tin(II) Citrate; Sodium Stannous Citrate; Citric Acid, Tin(II) Salt, Disodium Derivative; 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, tin(2+) salt (2:1), sodium salt (1:2)
EINECS	Contact for details

Quality Control

Our Disodium Stannous Citrate is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistent purity and performance. Certificates of Analysis (COA) documenting key parameters such as assay, tin content, and impurity profiles are available upon request to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) and easily oxidized nature, it is recommended to handle under an inert atmosphere for long-term storage and to minimize headspace in opened containers.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (Tin Content)	Min. 32.0%
Purity (HPLC)	Min. 98.0%
Water Content (KF)	Max. 2.0%
Heavy Metals (as Pb)	Max. 20 ppm
pH (5% Solution)	6.0 - 8.0

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