High Purity Silanes Gas for Advanced Semiconductor Applications and Electronics

• CAS No.: 7803-62-5
• Formula: Sih4
• EINECS: 232-263-4
• Model NO.: Sih4
• Constituent: Industrial Pure Air
• Grade Standard: Electronic Grade
• Purity: High Purity
• Appearance: Colorless Gas, with a Disgusting Smell of Garlic
• Molecular Weight: 32.117
• Density: 1.114 Kg/M³
• Transport Package: 20L, 40L, 280L and Customizable
• Specification: 99.9999%
• Trademark: Deo
• Origin: Suzhou
• HS Code: 28141000
• Production Capacity: 600tons/Year

Product Description

Product Description

Basic Info.

Model NO.	Sih4
Origin	Suzhou, China
Production Capacity	50000kg/Month

Transport Package

Cylinder

Trademark	Deo
HS Code	2812190091

Product Description

Product Descriptions:

Silane is a colorless, highly reactive gas that demands respect and caution. Upon exposure to air, it spontaneously ignites, producing a dense, white amorphous silica smoke, a spectacular yet perilous occurrence. This ignition is not just visually arresting but also poses a severe health hazard due to the potential for life-threatening burns. Should flames or extreme heat reach the gas cylinder before the valve is securely shut, the result could be a devastating explosion. Rapid or high-pressure release of silane may cause an explosive event after a delay, presenting significant dangers. It is essential to address any silane leak immediately, even without initial combustion, as it poses a serious risk. Emergency personnel must be equipped with top-tier fire-retardant protective clothing when managing such volatile situations. Never attempt to cut off the gas supply until the fire is fully controlled.

Silane gas, a colorless, toxic, and extremely flammable substance, is distinguished by its unique, pungent garlic-like odor, making it easily identifiable and necessitating diligent handling.

Physical Properties

Project	Attribute
Character	Colorless and smells disgusting garlic
Gas density(g/mL,25°C)	1.44
Relative density of steam(g/mL,air=1)	1.1
Melting point(ºC)	-185
Boiling point(ºC, atmospheric pressure)	-111.9
Boiling point(ºC,760mmHg)	-112
Heat of evaporation(KJ/mol)	12.5
Heat of fusion(KJ/mol)	0.67
Generate heat(KJ/mol)	32.6
Specific heat capacity(KJ/(kg·K),25ºC)	1.335
Critical temperature(ºC)	-3.5
Critical pressure(MPa)	4.864

Typical Technical Data

Item	Impurities(ppm)
SiH4 purity(%) ≥99.9999
Ar	≤0.05
Chlorosilane	≤0.15
Si2H6	≤0.5
He	≤1
CO	≤0.05
O2	≤0.05
N2	≤1
H2	≤20
CO2	≤0.05
CH4	≤0.05
C	≤0.2
SiH2Cl2	≤0.5
CH3Si	≤0.5
Metals	≤0.03

Our premium SiH4 gas stands as an indispensable asset in the electronics industry, seamlessly supporting various material production processes. It finds extensive application in the manufacturing of solar cells, underscoring its pivotal role in the advancement of renewable energy solutions.

 

Application
Silane and its derivatives are crucial across numerous industrial and medical sectors. In industry, they act as coupling agents, bolstering the strength of composite materials by binding glass or carbon fibers to polymer matrices. Silane is also integral in coating glass fibers to enhance adhesion to polymers. In the medical realm, it enables the creation of bio-inert layers on titanium implants. Furthermore, silanes serve as water repellents, protect masonry, and contribute to graffiti control. In semiconductor fabrication, silane is vital for depositing polycrystalline silicon layers on wafers. By the late 1990s, the semiconductor industry was utilizing approximately 300 metric tons of silane annually. The expanding production of economical solar photovoltaic modules has broadened silane's applications, notably in depositing hydrogenated amorphous silicon on substrates like glass, metal, and plastic. Despite the PECVD process's inefficiency, which wastes about 85% of silane, ongoing recycling efforts aim to minimize waste and lessen the environmental impact of a-Si:H-based solar cells.

In the realm of advanced propulsion systems, silane plays a vital role, particularly in supersonic combustion ramjets, where it aids in fuel ignition within compressed air streams. Its unique ability to combust with carbon dioxide positions it as a potential candidate for fuels in Mars-based engines. However, the reaction produces solid byproducts such as silicon dioxide and carbon, which limits its use to specific applications like liquid-fuel rockets using liquid CO2, ramjets, or advanced reaction engines.

Company Information:
Established in 2016, Jiangsu Deo Gas Co., Ltd. has rapidly ascended as a pioneering innovator in gas manufacturing. Renowned as a premier global exporter, we boast a remarkable array of industrial, specialty, electronic, and medical gases, essential across a diverse range of sectors, including chemical, shipbuilding, and electronics. Our offerings are indispensable to industries such as optical fiber communications, machinery manufacturing, food and medical sectors, solar photovoltaics, LED technology, aerospace, and extensive scientific research. We proudly offer a comprehensive selection of cylinder gases, electronic gases, and state-of-the-art systems, featuring the latest in gas tanks, advanced panels, innovative valves, and precision fittings. Our esteemed engineering services are globally accessible. Our unwavering mission is to forge robust global partnerships by providing cutting-edge, reliable products, supported by specialized services and tailored solutions.
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FAQ

Q: What's your product price?
A: Pricing for each gas is influenced by market supply and demand, quantity, and purity, making it difficult to set a fixed price. If you are interested in any specific gas, please provide your detailed requirements, and I would be happy to offer you a tailored quote.
Q: What is the minimum order quantity?
A: Minimum order quantities vary across different products. Please share your specific requirements with us, and we will provide the relevant details.
Q: What is the delivery time?
A: If the cylinder is in stock and only requires gas filling, delivery is approximately 7-10 days ex-works after receiving the deposit. Custom cylinder orders require about 15-35 days ex-works post-deposit, depending on the quantity.
Q: How do you ensure gas quality?
A: Our cylinders undergo a thorough treatment process, including cleaning, drying, vacuum pumping, and replacement before gas filling to ensure they are clear and dry. Each treated cylinder is tested for internal purity. After filling, all gases are tested once more. If the gas fails to meet standards, it is reprocessed. Finally, we provide a qualified gas test report.
Q: Are all cylinders recyclable?
A: Typically, seamless steel cylinders are recyclable. However, disposable cylinders are intended for single use only.
Q: Can we send back cylinders to China for refilling?
A: Yes, you can send back our cylinders for refilling. Inform us before exporting, and we will manage all necessary import customs clearance formalities.