Product Overview

This product is ultra-high purity sodium sulfide, designed specifically for electronic industry applications. By adopting special synthesis processes and purification techniques (such as ion exchange, membrane filtration, zone melting, etc.), the content of metal impurities, particulate matter, and anions is strictly controlled to meet the stringent requirements for key sulfur sources or precipitants in semiconductor manufacturing, photovoltaic cells, advanced display materials, and other processes. The product form can provide specific specifications of solid particles according to customer needs/Block or high-purity solution.

chemical formula: Na₂S · xH₂O (It usually exists in the form of pentahydrate,x≈5)
CASnumber: [1313-82-2] (Anhydrous substance) / [1313-83-3] (Nonahydrate)
Molecular weight:78.04 (Anhydrous substance)

Product Features

Mainstream product purity≥99.999%  high end customized products can achieve higher purity levels; The content of impurities such as iron and sodium sulfite needs to be controlled withinppmBelow grade, with iron content ≤0.001%The content of by-products such as sodium sulfite and sodium thiosulfate is ≤0.01%Meet the strict requirements for raw material purity in electronic component production.

Scope of application

In the field of semiconductors and electronic components: Can be used as a removal agent for metal impurities in semiconductor device production, which can react with alkali soluble heavy metal impurities such as zinc on the surface of electronic components such as circuit boards to improve the stability of electronic components; At the same time, it can participate in the preparation of semiconductor packaging materials to enhance the corrosion resistance of the packaging layer. In addition, it can also be used for cleaning electronic components, removing grease and dirt from the surface of circuit boards, and ensuring the conductivity of circuits.

In the field of photovoltaic cells: As an auxiliary material for the preparation of photovoltaic cell electrodes, it can optimize the bonding performance between electrodes and substrates, improve the photoelectric conversion efficiency of photovoltaic cells, and meet the production needs of core components of solar power generation systems.

In the field of electronic chemical synthesis: Used for synthesizing electronic grade sulfur-containing compounds as precursors for electronic specialty chemicals, such as preparing thiosulfates specifically for the electronic field, and can also be used as raw materials for high-end electronic cleaning agents.