99.99% High Purity Silicon Metal Element 14 Semiconductor Monocrystalline Si Block (50g)

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About 99.99% High Purity Silicon Metal Element 14

1. High purity polysilicon element information 1.1 elements conform to: Si 1.2 atomic number: 14 1.3 melting point: 1410 ℃ 1.4 boiling point: 2355 ℃ 1.5 density: 2.33g/cm3 1.6 chemical property: insoluble in water, nitric acid and hydrochloric acid. 1.7 physical properties: semiconductor properties. 2. Classification standard and preparation technology 2.1 according to the grade, it can be divided into solar silicon grade (4-6 9S) and electronic silicon grade (9-11 9S) 2.2 the preparation methods include the synthesis of silicon compounds, the dispersion of silicon compounds, the purification of silicon compounds, the gas-solid deposition of polysilicon by hydrogen reduction of silicon compounds, etc. 3. Specifications and dimensions 3.1 irregular block: 40-80mm 4. Quality requirements 4.1 the purity is produced in strict accordance with the requirements of customers 4.2 the dimensional tolerance shall be strictly controlled within the normal range 4.3 the surface of the product shall be flat and clean, without grain, crack, inclusion and other stains