High Purity Silanes 6n Colorless Gas for Semiconductor Applications

• 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, upon exposure to air, spontaneously combusts, creating a dense, white amorphous silica smoke. This ignition not only releases this impressive visual effect but also presents a considerable health hazard due to the risk of severe, life-threatening burns. Moreover, if flames or extreme heat reach the gas cylinder before the valve is cut off, it can result in a catastrophic explosion. Rapid or high-pressure release of silane may lead to an explosive event after a delay, posing significant dangers. It's crucial to address any silane leak immediately, even if there's no initial combustion, as it presents a serious threat. Emergency personnel must be equipped with appropriate fire-retardant protective clothing when dealing with such situations. It's essential never to attempt to cut off the gas supply until the fire is fully controlled.

Silane gas is a colorless, toxic, and highly flammable substance, characterized by a distinctive, pungent garlic-like odor, making it easily recognizable.

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 an essential asset for the electronics industry, underpinning diverse material production processes and enjoying widespread application in solar cell manufacturing.

 

Application
Silane and its derivatives are pivotal in numerous industrial and medical sectors. They serve as coupling agents, enhancing the strength of composite materials by bonding glass or carbon fibers to polymer matrices. Additionally, silane is utilized in coating glass fibers to improve adhesion to polymers. In the medical field, it assists in creating bio-inert layers on titanium implants. Furthermore, silanes function as water repellents, protect masonry, and aid in graffiti control. In semiconductor fabrication, silane is indispensable for depositing polycrystalline silicon layers on wafers. By the late 1990s, the semiconductor industry was using approximately 300 metric tons of silane annually. The burgeoning production of cost-effective solar photovoltaic modules has further 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, continuous 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 crucial, especially in supersonic combustion ramjets, where it helps ignite fuel within compressed air streams. Its unique ability to combust with carbon dioxide makes it a candidate for fuels in Mars-based engines. However, the reaction produces solid byproducts such as silicon dioxide and carbon, limiting its use to specific applications like liquid-fuel rockets using liquid CO2, ramjets, or advanced reaction engines.

Company Information:
Founded in 2016, Jiangsu Deo Gas Co., Ltd. has quickly emerged as a leading innovator in manufacturing, establishing its reputation as a top-tier global exporter. Our impressive array of industrial, specialty, electronic, and medical gases is vital across a multitude of sectors, including chemical, shipbuilding, electronics, and more. Our offerings are crucial to industries such as optical fiber communications, machinery manufacturing, food and medical sectors, solar photovoltaics, LED technology, aerospace, and extensive scientific research. We proudly provide a comprehensive selection of cylinder gases, electronic gases, and cutting-edge systems, featuring the latest in gas tanks, advanced panels, innovative valves, and precision fittings. Our esteemed engineering services are available worldwide. Our enduring mission is to build strong global partnerships by delivering state-of-the-art, dependable products, supported by specialized services and tailored solutions.
Our extensive product portfolio features an impressive range of gases, including H2, O2, N2, Ar, CO2, propane, acetylene, helium, and advanced laser gas mixtures. We also offer SiH4, SiH2Cl2, SiHCl3, SiCl4, NH3, CF4, NF3, SF6, HCl, N2O, and doped gas mixtures (including TMB, PH3, and B2H6), alongside xenon, neon, krypton, and a broad array of other innovative gases.

Detailed Photos

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.