High Purity Silanes Gas for Electronics and Semiconductor Uses

• 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:

Meet Silane: a seemingly benign yet extraordinarily potent colorless gas that astounds with its intense reactivity. This volatile nature leads to spontaneous combustion upon exposure to air, creating a dramatic spectacle of dense, white amorphous silica smoke. While captivating, it carries significant health risks, presenting the potential for severe, life-threatening burns. If flames or extreme heat reach the gas cylinder without deactivation, the result could be a catastrophic explosion. The rapid or high-pressure release of silane may also initiate a delayed explosive event, marking the grave danger it poses. Immediate response to any silane leak is critical, irrespective of visible combustion, due to the serious threat involved. Emergency personnel must be clad in fire-retardant gear to confront such hazards safely. It's crucial to maintain an active gas supply until the fire is thoroughly extinguished.

Silane gas, notorious for its toxic, highly flammable nature, is easily detectable by its distinctive, pungent garlic-like aroma, serving as a clear warning of its presence.

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 top-tier SiH4 gas is a cornerstone in the electronics industry, playing a pivotal role in material production processes and finding widespread applications in solar cell manufacturing, cementing its status as a vital component of modern technology.

 

Application
Silane and its derivatives are crucial across a vast array of industrial and medical applications. As coupling agents, they notably enhance the strength of composite materials by bonding glass or carbon fibers to polymer matrices. Silane improves adhesion in glass fiber coatings for polymers. In medical fields, it aids in developing bio-inert layers on titanium implants. Additionally, silanes serve as efficient water repellents, safeguarding masonry and assisting in graffiti control. In semiconductor fabrication, silane is indispensable for depositing polycrystalline silicon layers on wafers. By the late 1990s, the semiconductor industry utilized nearly 300 metric tons of silane annually. The burgeoning demand for cost-effective solar photovoltaic modules has further propelled silane's usage, especially for depositing hydrogenated amorphous silicon on substrates like glass, metal, and plastic. Despite the PECVD process wasting about 85% of silane, ongoing recycling efforts aim to reduce waste and mitigate the environmental impact of a-Si:H-based solar cells.

In advanced propulsion systems, silane emerges as a critical element, particularly within supersonic combustion ramjets, where it ignites fuel in compressed air streams. Its unique ability to combust with carbon dioxide offers potential for Mars-based engine fuels. However, the solid byproducts of this reaction, such as silicon dioxide and carbon, restrict its utility to specialized applications, including liquid-fuel rockets using liquid CO2, ramjets, or advanced reaction engines.

Company Information:
Established in 2016, Jiangsu Deo Gas Co., Ltd. has rapidly carved out a niche as a trailblazer in the manufacturing domain, earning a prestigious standing as a leading global exporter. Our expansive range of industrial, specialty, electronic, and medical gases provides essential utility across a multitude of sectors, including chemical manufacturing, shipbuilding, and electronics. Our offerings are crucial in industries such as optical fiber communications, machinery manufacturing, food and medical sectors, solar photovoltaics, LED technology, aerospace, and extensive scientific research ventures. We proudly present a comprehensive array of cylinder gases, electronic gases, and cutting-edge systems, featuring the latest advanced gas tanks, panels, valves, and precision fittings. Our highly regarded engineering services are globally available, driven by an unwavering mission to cultivate strong international partnerships through the delivery of innovative, reliable products, complemented by specialized services and tailor-made 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.