China (Mainland)
Assessedsupplier 
Silicon CAS NO.7440-21-3
- Min.Order: 1 Kilogram
- Payment Terms: L/C,T/T,Other
- Product Details
Keywords
- Silicon PRICE
- Silicon CAS 7440-21-3
- Silicon supplier in China
Quick Details
- ProName: Silicon
- CasNo: 7440-21-3
- Molecular Formula: H4Si
- Appearance: grey lustrous solid or grey powder
- Application: Is a raw material for manufacturing th...
- DeliveryTime: 15 days after order confirmed
- PackAge: 5Kg/bag, 1MT/bag or as your requiremen...
- Port: Shanghai, Ningbo, Tianjin, etc
- ProductionCapacity: 1 Metric Ton/Month
- Purity: 99%
- Storage: Stored in cool, dry and ventilation pl...
- Transportation: by courier door to door or by sea
- LimitNum: 1 Kilogram
Superiority
Superior quality, moderate price & quick delivery.
Details
| Silicon Chemical Properties |
| mp | 1410 °C(lit.) |
| bp | 2355 °C(lit.) |
| density | 2.33 g/mL at 25 °C(lit.) |
| storage temp. | Flammables area |
| form | powder |
| Water Solubility | INSOLUBLE |
| Merck | 13,8565 |
| Stability: | Stable. Fine powder is highly flammable. Incompatible with oxidizing agents, bases, carbonates, alkali metals, lead and aluminium oxides, halogens, carbides, formic acid. |
| CAS DataBase Reference | 7440-21-3(CAS DataBase Reference) |
| NIST Chemistry Reference | Silicon(7440-21-3) |
| EPA Substance Registry System | Silicon(7440-21-3) |
| Safety Information |
| Hazard Codes | T,F |
| Risk Statements | 11 |
| Safety Statements | 26-36/37-45-7/9-33-16-36 |
| RIDADR | UN 2922 8/PG 2 |
| WGK Germany | 2 |
| RTECS | VW0400000 |
| TSCA | Yes |
| HazardClass | 4.1 |
| PackingGroup | III |
| Hazardous Substances Data | 7440-21-3(Hazardous Substances Data) |
| MSDS Information |
| Provider | Language |
|---|---|
| SigmaAldrich | English |
| ACROS | English |
| ALFA | English |
| Silicon Usage And Synthesis |
| Chemical Properties | grey lustrous solid or grey powder |
| General Description | A dark brown powder. Insoluble in water and denser than water. Burns readily when exposed to heat or flames, and may be difficult to extinguish. Water may not be effective in extinguishing flames. Used to make computer microchips. |
| Air & Water Reactions | Highly flammable. Insoluble in water. A significant dust explosion hazard. |
| Reactivity Profile | Silicon is a reducing agent. Ignites in fluorine gas at ordinary temperatures [Mellor 2:11-13 1946-47]. Burns spontaneously in gaseous chlorine. A mixture of silicon, aluminum, and lead oxide explodes when heated [Mellor 7:657 1946-47]. When heated with an alkali carbonate, a vigorous reaction attended by incandescence occurs [Mellor 6:164 1946-47]. Reacts violently with silver fluoride [Mellor 3:389 1946-47]. Reacts with sodium-potassium alloy to form sodium silicide, which is spontaneously flammable in air [Mellor 2 Supp. 2:564 1961]. |
| Health Hazard | Oxides from metallic fires are a severe health hazard. Inhalation or contact with substance or decomposition products may cause severe injury or death. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may cause pollution. |
| Fire Hazard | May react violently or explosively on contact with water. Some are transported in flammable liquids. May be ignited by friction, heat, sparks or flames. Some of these materials will burn with intense heat. Dusts or fumes may form explosive mixtures in air. Containers may explode when heated. May re-ignite after fire is extinguished. |
| Silicon Preparation Products And Raw materials |
| Preparation Products | Chlorotrimethylsilane-->Silicon dioxide-->Dichlorodimethylsilane-->Trichlorosilane-->Silicon tetrahydride-->Methyltrichlorosilane-->Phenyltrichlorosilane-->SILICON NITRIDE-->1,2-Diphenylhydrazine-->Dichlorodiphenylsilane-->Dichlorosilane-->Dichloromethylsilane-->3-Glycidoxypropyltrimethoxysilane |
| Raw materials | Hydrogen-->Cuprous chloride-->Graphite-->Silicon dioxide-->CALCIUM CARBONATE-->Argon-->METALLURGICAL COKE-->Trichlorosilane-->SG Cat Sand |