99.6% high-purity potassium nitrate powder is a high-quality raw material specially used for chemical strengthening of optical glass and mobile phone glass

99.6% high-purity potassium nitrate powder for optical glass manufacturing is a chemically strengthened raw material specially designed for high-end optical glass, precision optical components and glass assemblies of optoelectronic equipment. The product complies with optical-grade material standards, featuring ultra-high transparency, outstanding chemical stability and extremely low impurity content. It can significantly enhance the mechanical strength, surface hardness and weather resistance of optical glass, while maintaining excellent optical properties.

Core advantages of the product

Optical grade purity standard

• Purity ≥ 99.6%, strictly controlled heavy metal ion content
• Ultra-low chloride ion concentration (< 10ppm) to prevent glass surface corrosion
• Extremely low calcium and magnesium impurities to ensure optical uniformity

Outstanding optical performance guarantee

• The light transmittance loss of the strengthened optical glass is less than 0.5%. • Effectively control stress birefringence to ensure imaging quality. • There is no white fog or rainbow pattern phenomenon during the strengthening process

Improve efficiency and yield

High-purity raw materials mean less impurity interference, which can effectively reduce the defect rate during the glass strengthening process and bring higher output efficiency and economic benefits to your production line.

Parameter (Latest）

Application field

• Consumer electronics optical glass
• Precision optical instruments
• Industrial and special optics

Packaging, Storage and Safety Instructions

• Packaging: 25/50 kilograms or 1ton per bag
• Storage: Keep in a cool, dry and well-ventilated warehouse. Keep away from fire sources, heat sources and reducing substances.
• Safe Operation: During the operation of the molten salt system, the medium must be kept clean. It is strictly forbidden to come into contact with water, organic matter and reducing substances to avoid triggering violent chemical reactions.
• Strictly control the heating rate to avoid sudden cooling and heating of the system.

Why choose us?

• Professional and reliable suppliers: We have stable cooperation with well-known domestic glass cover plate enterprises such as Lens Technology, Bern Optics, and BOE. Our products are supplied in large quantities to the supply chain systems of domestic and foreign brand mobile phones such as Apple, Samsung, and Huawei.
• Technology and Quality Benchmarks: As one of the drafters of national standards, we continuously invest in technological research and development to ensure the leading and stable quality of our products.
• Comprehensive quality assurance: The product has passed the HF and RoHS certifications of the authoritative third-party SGS company , meeting strict international environmental protection and safety standards.

FAQ

Q: What are the differences between this product and ordinary industrial-grade potassium nitrate?

A:Optical-grade potassium nitrate has stricter requirements in terms of purity, impurity control, and heavy metal content, and is specially developed to meet the specific needs of optical glass.

Q:What quantity is recommended to purchase for the first use?

A:It is recommended to take samples for testing first, purchase in small quantities for process verification, and sign a long-term supply agreement after stability.

Q:What are the advantages of glass-grade high-purity potassium nitrate compared to regular high-purity potassium nitrate?

A:Glass, especially optical glass, is extremely sensitive to coloring ions such as iron and chromium. Our high-purity potassium nitrate ensures that these impurities are controlled at the ppm level, preventing them from absorbing specific wavelengths of light and causing the glass to appear greenish or bluish, thus ensuring the finished product’s ultra-high light transmittance and purity.