Place of Origin: | China |
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Brand Name: | Newradar Gas |
Certification: | ISO/DOT/GB |
Model Number: | N/A |
Minimum Order Quantity: | 1 pcs |
Price: | negotiation |
Packaging Details: | Packed in 40L-50L, 440L cylinder or packed according to the demands. |
Delivery Time: | 15-25 working days after received your payment |
Payment Terms: | L/C, , T/T, Western Union, MoneyGram |
Supply Ability: | 2000 pcs per month |
Product Name: | Silane | Purity: | 99.9999% |
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CAS No.: | 7803-62-5 | EINECS No.:: | 232-263-4 |
Molar Mass: | 32.12 G/mol | Density: | 1.342 G/cm3 |
MF: | SiH4 | UN No.: | 2203 |
High Light: | electric gas,purity plus specialty gases |
Nitrgoen Silane Mixture Gas Semiconductor Application
Description:
Silane is an inorganic compound with chemical formula, SiH4, making it a group 14 hydride. It is a colourless, flammable gas with a sharp, repulsive smell, somewhat similar to that of acetic acid. Silane is of practical interest as a precursor to elemental silicon.
The most commonly used catalysts for this process are metal halides, particularly aluminium chloride. This is referred to as a redistribution reaction, which is a double displacement involving the same central element. It may also be thought of as a disproportionation reaction even though there is no change in the oxidation number for silicon. However, the utility of the oxidation number concept for a covalent molecule, even a polar covalent molecule, is ambiguous. The silicon atom could be rationalized as having the highest formal oxidation state and partial positive charge in SiCl4 and the lowest formal oxidation state in SiH4 since Cl is far more electronegative than is H.
Specifications:
1. Physical properties
Item | Specifications |
Purity | ≥99.9% |
Silicon tetrachloride | ≤300ppm |
Chlorine | ≤10ppm |
Conclusion | The results conforms with Enterprise standards |
2. Typical technical data
Item | Purity | ||
Silane (SiH4) | 99.99% | 99.999% | 99.9999% |
Oxygen+Argon (O2+Ar) |
≤1 ppmv | ≤0.4 ppmv | ≤0.1 ppmv |
Nitrogen (N2) | ≤1 ppmv | ≤0.2 ppmv | ≤0.1 ppmv |
Helium (He) | / | ≤10 ppmv | ≤10 ppmv |
Moisture (H2O) | ≤1 ppmv | ≤0.2 ppmv | ≤0.1 ppmv |
Hydrogen (H2) | ≤50 ppmv | ≤30 ppmv | ≤20 ppmv |
Total Hydrocarbons (THC) | ≤0.2 ppmv | ≤0.2 ppmv | ≤0.1 ppmv |
CO2+CO | ≤0.4 ppmv | ≤0.2 ppmv | ≤0.1 ppmv |
Chlorosilanes | ≤15 ppmv | ≤0.2 ppmv | ≤0.1 ppmv |
Disiloxane | ≤1 ppmv | ≤0.2 ppmv | ≤0.1 ppmv |
Didilane | ≤1 ppmv | ≤0.2 ppmv | ≤0.1 ppmv |
3. Package
47Ltr Cylinder /440Ltr Y Cylinder
Filling Net Weight/Cyl: 10Kgs /125Kgs
QTY Loaded in 20'Container: 216 Cyls/ 8Cyls
4. Applications:
Several industrial and medical applications exist for silane and functionalized silanes.
1 | silanes are used as coupling agents to adhere fibers such as glass fibers and carbon fibers to certain polymer matrices, stabilizing the composite material. |
2 | They can also be used to couple a bio-inert layer on a titanium implant. |
3 | Other applications include water repellents, masonry protection, control of graffiti, applying polycrystalline silicon layers on silicon wafers when manufacturing semiconductors, and sealants. |
4 | Silane is also used in supersonic combustion ramjets to initiate combustion in the compressed air stream. As it can burn using carbon dioxide as an oxidizer it is a candidate fuel for engines operating on Mars. |
5 | Silane and similar compounds containing Si—H bonds are used as reducing agents in organic and organometallic chemistry. |
6 | Silane methacrylates are used in dentistry as part of tooth-colored, composite filling material. Silane methacrylates act as a coupling agent between the hard, silicate-based, ceramic filler and the organic, resin-based oligomer matrix. |