Hi purity Silicon |
| 04-10 16:46:27 来源： 作者： |
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Hi purity Silicon Inquiry (采购产品): Hi purity Silicon Dear Sir: We are in need of elemental polycrystalline silicon in substantial quantity. It should have the following specs.: Use: solar panel Purity: 99.9999% Si P, As, Sb (ASTM 138900 LT-FTPL) <300 ppta B, Al (do.) <100 ppta C (ASTM 139193 LT_FTPL) <250 ppba Total metals (Fe, Cu, Ni, Cr, Zn, Na NAA) <2 ppbw Surface Metal: (all in ppbw, by GC-MS, GF AAS) Fe <10 Cr, Ni, Cu < 1 Zn < 2 Na < 6 Particle Size: Not critical, but prefer lumps Quantity: 1. start with kilogram-quantity, say, 1-10 metric tons/month 2. long term: 100 metric tons/month Please quote price, delivery time, payment method(s), long-term supply possibility, etc. as soon as possible. Sincerely, Tze Chao Cierra Technology, Inc. Newark, Delaware **** Hidden Message ***** Dr. Chao DE 19711 USA Company: E. I. Du Pont Co. E-mail: tzechao@aol.com **** Hidden Message ***** tzechao@aol.com |
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