Description

Tin Oxide CAS NO 1332-29-2 is a high-purity inorganic compound, also known as stannic oxide, valued for its exceptional hardness, chemical inertness, and optical properties. It serves as a critical functional material in numerous high-tech manufacturing processes where durability and specific surface characteristics are paramount. This product is essential for industries including ceramics, electronics, optics, and surface treatment, where it acts as an opacifier, polishing agent, conductive component, and catalyst support.

Application

• Ceramics & Glass Manufacturing: Primary use as an opacifier to produce white, opaque glazes and enamels, and as a colorant for pink and maroon shades.
• Optical & Precision Polishing: Key abrasive material for polishing optical glass, lenses, and advanced technical ceramics due to its fine, uniform particle size and hardness.
• Electronic Materials: Used in the formulation of conductive pastes, electrodes, and varistors. Acts as a precursor for transparent conductive oxides (TCOs) like indium tin oxide (ITO).
• Catalysis & Chemical Synthesis: Functions as a catalyst and catalyst support in oxidation reactions and organic synthesis processes.
• Surface Coatings & Paints: Imparts abrasion resistance, durability, and specific reflective properties to industrial and protective coatings.
• Gas Sensors: Utilized as a sensitive material in semiconductor gas sensors for detecting combustible and toxic gases.
• Specialty Pigments: Employed in the production of heat-stable and chemically resistant pigments for plastics and coatings.

Basic Information

Product Name	Tin Oxide
CAS No.	1332-29-2
Molecular Formula	SnO₂
Molecular Weight	150.71 g/mol
Synonyms	Stannic Oxide; Tin(IV) Oxide; Tin Dioxide; Flowers of Tin; Cassiterite (mineral form); White Tin Oxide; Tin Peroxide; SnO2
EINECS	215-138-9

Quality Control

Our Tin Oxide is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications, including purity, particle size distribution, and impurity limits. Certificates of Analysis (COA) documenting these results are provided and available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep the container sealed to minimize exposure to atmospheric moisture and contaminants. Separate from strong acids and strong reducing agents.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (SnO₂)	≥ 99.0 %
Particle Size (D50)	Contact for details
Loss on Drying	≤ 0.5 %
Acid Insoluble Matter	≤ 0.1 %
Heavy Metals (as Pb)	≤ 20 ppm
Iron (Fe)	≤ 50 ppm

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