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| CAS号 : | 7440-21-3 |
精确质量 : | 27.98000 |
| 分子式 : | Si |
logP : | 0.00000 |
| 分子量 : | 28.09000 |
PSA : | 0.00000 |
硅 | |
silicon atom | |
7440-21-3 | |
Si | |
28.09000 | |
0.00000 | |
0.00000 | |
27.98000 |
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银色-灰色固体
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2355ºC
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1410ºC
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2.33
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Stable. Fine powder is highly flammable. Incompatible with oxidizing agents, bases, carbonates, alkali metals, lead and aluminium oxides, halogens, carbides, formic acid.
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Flammables area
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GHS02 | |
警告 | |
H228 | |
P210 | |
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VW0400000
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2
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4.1
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S16-S33-S7/9
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III
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UN 2922 8/PG 2
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2804690000
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F
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R11
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2933990090
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2933990090. 其他仅含氮杂原子的杂环化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0% | |
2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
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主要用作制多晶硅、单晶硅、硅铝合金及硅钢合金的化合物。 |
