China Factory Supply High Quality Gas Geh4 Gas Cylinder Germane
Product Description
Germane gas (GeH4) is a colorless, flammable, and highly toxic gas. It is the simplest compound of germanium, an element with the atomic number 32. Here are some key points about germane gas:
-
Chemical Composition: Germane gas is composed of one germanium atom bonded to four hydrogen atoms (GeH4).
-
Properties: Germane gas possesses several important properties:
-
Flammability: Germane is a highly flammable gas. It can form explosive mixtures with air or oxygen, presenting a fire hazard.
-
Toxicity: Germane gas is highly toxic and poses health risks upon inhalation. It can cause severe respiratory irritation and damage to the lungs.
-
Odor: Germane gas has a foul and unpleasant odor, similar to that of rotten eggs.
-
-
Production: Germane gas can be produced through various methods, including:
-
Chemical Reaction: It can be synthesized by reacting germanium tetrachloride (GeCl4) with hydrogen gas (H2) in the presence of a catalyst.
-
Thermal Decomposition: Germane can also be generated by thermally decomposing germanium hydrides, such as digermane (Ge2H6), at elevated temperatures.
-
-
Uses: Germane gas has limited practical applications due to its toxicity and flammability. However, it finds some use in specialized areas:
-
Semiconductor Industry: Germane gas is used in the production of semiconductors, particularly for the deposition of germanium-containing thin films. It can be employed in the chemical vapor deposition (CVD) process to create germanium layers in electronic devices.
-
Research and Laboratory Applications: Germane gas is utilized in research laboratories for experimental purposes, such as studying the properties of germanium compounds or as a precursor in chemical reactions.
-
-
Safety Considerations: Germane gas is highly hazardous and requires strict safety precautions when handling or using it. Some important safety measures include:
-
Ventilation: Germane gas should only be used in well-ventilated areas or under fume hoods to prevent the accumulation of toxic or flammable concentrations.
-
Flammability Precautions: As a flammable gas, germane should be handled with caution, ensuring that ignition sources are avoided and that appropriate fire safety measures are in place.
-
Toxicity Protection: Proper personal protective equipment, such as respiratory protection and chemical-resistant gloves, should be worn when working with germane gas to prevent inhalation or skin contact.
-
Storage and Handling: Germane gas cylinders should be stored and handled according to specific guidelines provided by the manufacturer to ensure safety.
-
Due to its high toxicity and flammability, germane gas should be handled by trained professionals in controlled environments, adhering to all necessary safety protocols.
Basic Info.
| Model NO. | GeH4 | Constituent | Germane 99.999% |
| Grade Standard | Electronic Grade | Chemical Property | Inflammable Gas |
| Trademark | CMC | Transport Package | 44L |
| Specification | 99.999 | Origin | China |
| Germane - ( GeH4 ) | |||
| Description | |||
| Germane is a flammable , colorless gas with characteristic pungent ,nauseating odor .Its boiling point is - 90°C. It is unstable and can decompose explosively when heated to greater than 330°C. | |||
| Specifications | |||
| Purity , % | 99.999 | ||
| Oxygen + Argon | ≤0.5 ppmv | ||
| Nitrogen | ≤2.0 ppmv | ||
| Carbon Dioxide | ≤2.0 ppmv | ||
| Carbon Monoxide | ≤1.0 ppmv | ||
| Methane | ≤1.0 ppmv | ||
| Water | ≤1.0 ppmv | ||
| Chlorogermanes | ≤5.0 ppmv | ||
| Digermane* | ≤20.0 ppmv | ||
| Germoxanes | ≤5.0 ppmv | ||
| Hydrogen* | ≤50.0 ppmv | ||
| Trigermane | ≤1.0 ppmv | ||
| Ship | |||
| DOT Shipping Name | Germane | ||
| DOT Classification | 2.3 | ||
| DOT Label | Toxic Gas, Flammable Gas | ||
| UN Number | UN2192 | ||
| CAS No. | 7782-65-2 | ||
| CGA/DISS/JIS | 350/632/W22-14L | ||
| Shipped as | Compressed Gas | ||
| Technical Information | |||
| Cylinder State @ 21.1°C | Gas | ||
| Flammable Limits In Air | 0.5-100% | ||
| Auto Ignition Temperature (°C ) | 54.4 | ||
| Molecular Weight (g/mol) | 76.62 | ||
| Specific gravity (air =1) | 2.65 | ||
| Critical Temperature ( °C ) | 34.8 | ||
| Critical Pressure ( psig ) | |||
| Applications | |||
| Used for the deposition of epitaxial and amorphous silicon - germanium alloys , and as a component for PECVD of ( Si, Ge )O2 films with controllable refractive index for photonic . |
|||
Detailed Photos
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.




