The “Invisible Guardians” of Consumer Electronics Glass: How Do High-purity potassium nitrate and sodium Nitrate define New quality Standards

Today, with the increasing popularity of smart phones, tablets and wearable devices, we are often amazed by the brilliant colors, hardness, wear resistance and ultimate touch of their screens. However, few people know that behind this exquisite craftsmanship within such a small space, there are two fundamental yet crucial chemical materials – high-purity potassium nitrate and high-purity sodium nitrate. They are like the “invisible formula” and “quality foundation” in the manufacturing of consumer electronics glass, and their purity directly determines the performance of the final product in terms of light transmittance, strength and yield rate.

Why is “high purity” the key? Impurities are the natural enemies of glass

Will your cover glass withstand daily rigorous tests? Chemical strengthening is the key. Our high-purity potassium nitrate, with its purity of over 99.9% and extremely low water-insoluble substances, ensures sufficient and uniform ion exchange with the glass surface during the chemical tempering process. This significantly improves the glass’s surface compressive stress (CS) and depth of layer (DOL), thereby providing superior impact resistance, bending resistance, and scratch resistance, making your end product more robust and reliable.

Therefore, ordinary industrial-grade raw materials are far from meeting the demands of high-end manufacturing.

Only “high-purity” grade nitrates can ensure the production of flawless electronic glass.

Our high-purity nitrate: Born for ultimate optics and strength

We are well aware of the significance of raw material purity to our customers. Every batch of high-purity potassium nitrate and high-purity sodium nitrate we provide adheres to the pursuit of quality that exceeds industry standards.

The only EU REACH certification in the country

The ingredients of our products have undergone comprehensive assessment and registration, fully meeting the high standards of the European Union for human health and environmental safety.

It is our solemn commitment to ensuring that the product is fully controllable, safe and transparent from the source to the factory.

Choosing us means that the starting point of your supply chain is equipped with international-level quality and safety genes.

Outstanding purity guarantee

The core purity of our products remains stable at over 99.9%, providing a solid foundation for the precise proportioning of core glass components. This means that other functional ingredients in the formula can function more precisely, avoiding unstable product performance caused by fluctuations in the main ingredients.

Extremely low impurity control

Through advanced production and purification processes, we have achieved precise targeting of key impurities:

• The content of heavy metals and colored ions is extremely low, ensuring the colorless and transparent nature of the glass substrate and providing a pure “canvas” for the precise reproduction of displayed colors.
• The content of water-insoluble substances is far below the standard limit, effectively avoiding the formation of bubbles, streaks or stones during high-temperature melting, and significantly enhancing the uniformity and structural strength of the glass.
• All kinds of anions (such as chlorine and sulfate) are strictly controlled, ensuring the chemical stability of the glass melt and the breadth of the process window, making the production process more stable and the yield of good products higher.

Stable performance

A strict quality control system ensures a high degree of consistency between product batches. From pH value to various physical and chemical indicators, our products demonstrate excellent stability, enabling your production line to achieve efficient and continuous production without frequent adjustments to process parameters. Conclusion