High Purity Silanes Gas for Electronics and Semiconductor Solutions

• 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 an exceptional colorless gas known for its high reactivity. Upon exposure to air, it spontaneously combusts, producing a dense, white amorphous silica smoke that captivates visually while posing significant health risks due to the potential for severe, life-threatening burns. The presence of flames or intense heat near a silane-filled gas cylinder can precipitate catastrophic explosions unless the valve is swiftly shut off. Rapid or high-pressure release of silane is perilous, potentially leading to explosive events with a dangerous delay. Promptly addressing any silane leak is imperative, even in the absence of immediate combustion, as it remains a serious threat. Emergency personnel must utilize appropriate fire-retardant protective clothing for safety. Ensure that the gas supply is never interrupted until the fire is entirely under control.

Silane gas is a distinct, colorless, and highly toxic substance, notorious for its flammability and unique pungent garlic-like odor, making it easily identifiable.

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 superior SiH4 gas is an invaluable asset in the electronics industry, playing a crucial role in diverse material production processes and achieving significant application in solar cell manufacturing.

 

Application
Silane and its derivatives are indispensable in numerous industrial and medical sectors. They act as coupling agents, enhancing composite materials' strength by firmly bonding glass or carbon fibers to polymer matrices. Additionally, silane is instrumental in coating glass fibers to improve adhesion to polymers. In the medical arena, it is invaluable for creating bio-inert layers on titanium implants. Furthermore, silanes serve as water repellents, protect masonry, and assist in graffiti control. In semiconductor fabrication, silane is essential for depositing polycrystalline silicon layers on wafers. By the late 1990s, the semiconductor industry utilized approximately 300 metric tons of silane annually. The growing production of cost-effective solar photovoltaic modules has significantly expanded silane applications, particularly in depositing hydrogenated amorphous silicon on substrates such as glass, metal, and plastic. Despite the PECVD process's inefficiency, wasting about 85% of silane, ongoing recycling efforts aim to minimize waste and reduce the environmental impact of a-Si:H-based solar cells.

Within advanced propulsion systems, silane's role is pivotal, especially in supersonic combustion ramjets, where it assists in igniting fuel within compressed air streams. Its unique ability to combust with carbon dioxide makes it an intriguing candidate for Mars-based engine fuels. However, the reaction yields solid byproducts like silicon dioxide and carbon, restricting its use to specific applications such as liquid-fuel rockets using liquid CO2, ramjets, or advanced reaction engines.

Company Information:
Established in 2016, Jiangsu Deo Gas Co., Ltd. has rapidly positioned itself as a trailblazer in the manufacturing industry, gaining acclaim as a leading global exporter. Our diverse portfolio of industrial, specialty, electronic, and medical gases is fundamental across a wide array of sectors including chemical, shipbuilding, electronics, and beyond. Our solutions are critical to industries like optical fiber communications, machinery manufacturing, food and medical sectors, solar photovoltaics, LED technology, aerospace, and extensive scientific research. We proudly offer a comprehensive range 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 available. Our unwavering mission is to forge robust global partnerships by delivering 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.