Description
99.5% Selenium Powder (Elemental Selenium, Se)
99.5% Selenium Powder is high-purity elemental selenium fine powder, chemical symbol Se, CAS No.7782-49-2, dark red to black ultra-fine inorganic powder with minimum 99.5% selenium content. It owns unique light absorption and high-temperature coloring characteristics, the key raw material to produce red series glass and ceramic pigments.
Low-grade selenium powder contains excessive heavy metal impurities, which leads to color deviation, turbidity and unstable firing effect. Our 99.5% grade strictly controls trace impurities to ensure consistent bright red tone for high-end crafts.
Core Application Industries
- Colored Glass & Crystal Craft Exclusive raw material for ruby red glass, pink crystal, amber decorative glass; cooperates with cadmium to form stable transparent red glass body, widely used in art crystal, tableware and optical glass.
- High-End Ceramic Glaze & Underglaze Pigment Produce rose red, coral red, pink underglaze colorants for luxury porcelain, art ceramics and sanitary ware; bright color, fade-resistant under high firing temperature.
- Metallurgy Alloy Additive Improve machinability and wear resistance of copper, lead and stainless steel alloys, refine metal internal grain structure.
- Photovoltaic & Electronic Industry Manufacture selenium solar cells, photoelectric sensors, rectifiers and semiconductor thin film components, utilize its excellent photoconductive property.
- Chemical & Rubber Auxiliaries Catalyst for organic synthesis; vulcanization modifier and anti-aging additive for special rubber products.
Our 99.5% selenium powder features narrow particle distribution, loose powder without hard agglomeration, good dispersion in glass melt and glaze slip, stable selenium content batch by batch.
Key Specifications
- Chemical Name: 99.5% Selenium Powder / Elemental Selenium
- Symbol: Se
- CAS Number: 7782-49-2
- Selenium Purity: ≥99.5%
- Appearance: Dark Red / Black Superfine Powder
- Core Features: Unique Red Coloring, Photoconductive Property, Low Trace Impurity, Good Dispersion
- Main Applications: Ruby Red Glass, Pink Ceramic Glaze, Art Crystal, Alloy Additive, Solar Cell, Semiconductor Devices
Safety Reminder
Selenium powder is toxic if inhaled or ingested. Wear dust mask, chemical gloves and protective goggles during operation. Store sealed in cool dry warehouse, isolated from food and oxidants. Waste disposal must comply with local hazardous substance regulations.
Our Advantages
- Full spectrum impurity testing, complete COA, MSDS and element analysis reports supplied for customs clearance
- Customizable fineness mesh, vacuum inner bag + iron drum outer packaging to prevent oxidation and moisture
- Factory direct bulk supply for glass, ceramic pigment and electronic manufacturers in Asia & Africa
- Small test samples available for glass melting and glaze firing color matching, stable delivery cycle
If you source premium 99.5% selenium powder for ruby glass and high-end red ceramic pigment production, send inquiry to get latest factory quotation and technical datasheet.









