Specialty Gas Silanes High Purity Sih4 for Electronics Manufacturing

• 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 gas known for its reactive nature when exposed to air, which can lead to a choking hazard. Upon contact with air, silane ignites, producing a stark, white amorphous silica smoke. Its primary health risk stems from its spontaneous combustion, posing severe thermal dangers that can result in significant injuries or even be life-threatening. The intense heat generated before the cylinder valve can lead to explosive busts. Uncontrolled discharge pressure may also result in delayed explosions. Any leakage of non-spontaneously combusting silane is perilous and must remain unsealed. Personnel handling emergencies must be equipped with suitable protective gear tailored to the specific fire scenario. It is crucial not to attempt gas cutoff before extinguishing the fire.

Silane gas is a colorless, toxic, and flammable substance with a distinctive garlic-like odor that can be quite irritating.

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 high-quality SiH4 gas finds its pivotal role in the electronics industry, facilitating diverse material production and extensively applied in the realm of solar cell technology.

 

Application
Silane and its functionalized counterparts boast a wide array of industrial and medical applications. Notably, silanes serve as coupling agents that adhere fibers, such as glass and carbon fibers, to specific polymer matrices, thereby enhancing the stability of composite materials. Silane coats these fibers to ensure superior adhesion to the polymer matrix. Additionally, silanes are employed to couple bio-inert layers on titanium implants and are integral to water repellent formulations, masonry protection, and graffiti control. They play a vital role in applying polycrystalline silicon layers on silicon wafers in semiconductor manufacturing. The late 1990s saw the semiconductor industry consume approximately 300 metric tons of silane annually. More recently, the surge in affordable solar photovoltaic module production has markedly increased silane consumption for hydrogenated amorphous silicon (a-Si:H) deposition on various substrates like glass, metal, and plastic. The PECVD process, however, is notably inefficient, with about 85% of silane being wasted. Efforts to diminish this waste and the ecological footprint of a-Si:H-based solar cells have led to the development of several recycling initiatives.

In the realm of supersonic combustion ramjets, silane plays a crucial role in igniting combustion within the compressed air stream. Its capability to burn utilizing carbon dioxide as an oxidizer renders it a promising fuel candidate for engines operating on Mars. However, since this reaction produces solid byproducts such as silicon dioxide and carbon, its applications are restricted to liquid-fuel rockets (using liquid carbon dioxide), ramjets, or other reaction engines.

Company Information:
Established in 2016, Jiangsu Deo Gas Co., Ltd. has rapidly ascended as a trailblazing leader in the manufacturing sector, securing a prestigious position as a premier global exporter. Our expansive range of industrial, specialty, electronic, and medical gases is integral to a multitude of industries, including chemical, shipbuilding, electronics, and more. Our products are indispensable in numerous domains, such as optical fiber communications, machinery manufacturing, food and medical applications, solar photovoltaics, LED technology, aerospace, and beyond, supporting extensive scientific research. We proudly offer a comprehensive assortment of cylinder gases, electronic gases, and advanced systems, encompassing state-of-the-art gas tanks, sophisticated panels, innovative valves, and precision fittings. Our esteemed engineering services serve both domestic and international patrons. Our unwavering mission is to forge robust global partnerships by delivering cutting-edge, dependable products complemented by tailored support and bespoke solutions.
Our extensive product lineup includes a diverse array of gases: H2, O2, N2, Ar, CO2, propane, acetylene, helium, advanced laser gas mixtures, SiH4, SiH2Cl2, SiHCl3, SiCl4, NH3, CF4, NF3, SF6, HCl, N2O, and doped gas mixtures (such as TMB, PH3, and B2H6), alongside xenon, neon, krypton, and a wide variety of other pioneering gases.

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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.