Description

Stannous Pyrophosphate is an inorganic compound of tin, valued for its unique chemical properties as a source of stannous (tin(II)) ions. This compound is essential in industrial processes where controlled reactivity and specific ionic characteristics are required. It serves as a critical raw material for manufacturers in sectors such as electroplating, catalysis, and specialty chemical synthesis.

Application

• Electroplating & Surface Treatment: Used as a key component in tin and tin-alloy plating baths to deposit uniform, corrosion-resistant coatings on metals.
• Catalyst & Reagent: Acts as a catalyst or precursor in various organic synthesis and polymerization reactions.
• Ceramic & Glass Production: Employed as an opacifier and to modify the physical properties of glasses and ceramic glazes.
• Stabilizer for Plastics: Functions as a heat and light stabilizer in specific PVC and other polymer formulations.
• Laboratory & Research: Serves as a standard or reagent in analytical chemistry and materials science research.
• Specialty Pigments: Used in the formulation of certain inorganic pigments and colorants.

Basic Information

Product Name	Stannous Pyrophosphate
CAS No.	15578-26-4
Molecular Formula	Sn₂P₂O₇
Molecular Weight	411.36 g/mol
Synonyms	Tin(II) Pyrophosphate; Ditin Pyrophosphate; Stannous Diphosphate; Pyrophosphoric Acid, Tin(2+) Salt (1:2); Tin Pyrophosphate; Stannous Diphosphate (Sn2P2O7); Tin(2+) Diphosphate
EINECS	239-635-1

Quality Control

Our Stannous Pyrophosphate is manufactured under a stringent quality management system. Each batch undergoes comprehensive analysis to ensure it meets precise chemical and physical specifications, including assay, impurity profile, and particle size distribution where applicable. A Certificate of Analysis (COA) documenting these results is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be kept away from moisture and incompatible substances such as strong acids and strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (SnO basis)	≥ 95.0 %
Chloride (Cl)	≤ 0.1 %
Sulfate (SO₄)	≤ 0.1 %
Iron (Fe)	≤ 0.01 %
Lead (Pb)	≤ 0.01 %
Loss on Drying	≤ 1.0 %

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