Specialty High Purity Sih4 Gas for Semiconductor Manufacturing Needs

• 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 that reacts with the air and can be hazardous. Upon contact with air, it ignites and releases a dense white amorphous silica smoke. The primary health risk involves its spontaneous combustion, which can cause severe thermal burns and may be fatal. Additionally, if high temperatures or flames occur near the silane cylinder valve, explosions could ensue. High or rapid discharge pressure can also lead to delayed explosions. Silane leaks, even if not ignited, pose serious dangers and should not be neglected. Personnel handling emergencies must use appropriate protective equipment tailored for fire scenarios. Extinguish the fire before attempting to shut off the gas supply.

Silane gas is a colorless, toxic, and highly flammable substance with a distinctive, pungent garlic-like odor.

Physical propertie

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-grade SiH4 gas is extensively utilized in the electronics industry for creating various materials and is prominently featured in the production of solar cells.

 

Application
Silane and its functionalized derivatives have diverse industrial and medical applications. They serve as coupling agents, binding fibers such as glass and carbon to polymer matrices, thus fortifying composite materials. For example, silane enhances adhesion by coating glass fibers, which improves the bond with polymer matrices. They also couple a bio-inert layer on titanium implants. Furthermore, silane applications include water repellents, masonry protection, graffiti control, and the application of polycrystalline silicon layers on silicon wafers during semiconductor manufacturing. In the late 1990s, 300 metric tons of silane were used annually by the semiconductor industry. The rise of economical solar photovoltaic module production has amplified silane consumption for depositing hydrogenated amorphous silicon (a-Si:H) on substrates like glass, metal, and plastic. However, PECVD processes are inefficient, wasting about 85% of silane. Efforts in recycling have emerged to minimize waste and environmental impact of a-Si:H-based solar cells.

Silane also finds utility in supersonic combustion ramjets for initiating ignition within compressed air streams. Its ability to burn with carbon dioxide as an oxidizer makes it an innovative candidate for Mars-based engine operations. However, due to solid byproducts such as silicon dioxide and carbon, its use is restricted to liquid-fuel rockets, ramjets, and other reaction engines.

Company Information:
Founded in 2016, Jiangsu Deo Gas Co., Ltd. has swiftly risen as a pioneering leader in manufacturing, carving its niche as a premier global exporter. Our diverse array of industrial, specialty, electronic, and medical gases is indispensable across fields like chemical processing, shipbuilding, and electronics. Our gases are integral in optical fiber communications, machinery production, food and medical sectors, solar power, LED technology, aerospace, and scientific research. We offer an extensive range of cylinder gases, electronic gases, and sophisticated systems, including cutting-edge gas tanks, advanced panels, innovative valves, and precision fittings. Our distinguished engineering services cater to both domestic and international markets. Our unwavering mission is to establish robust global partnerships, delivering innovative, reliable products with expert support and bespoke solutions.
Our vast product portfolio encompasses: 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 (including TMB, PH3, and B2H6), alongside xenon, neon, krypton, and an extensive range of other cutting-edge gases.

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Company Profile

Packaging & Shipping

Certifications

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.