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GERMANE

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Products Intro: Product Name:Germane
CAS:7782-65-2
Package:10g
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Products Intro: Product Name:GERMANE, 10% in hydrogen (v/v)
CAS:7782-65-2
Package:10g Remarks:GEG5001-H1
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Products Intro: Product Name:GerMane
CAS:7782-65-2
Purity:electronic grade, >=99.997% Package:15G
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Products Intro: Product Name:Germane
CAS:7782-65-2
Purity:99.9+ Package:50L
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Products Intro: Product Name:Germane
CAS:7782-65-2
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GERMANE Basic information
Introduction Reaction Preparation Toxicity
Product Name:GERMANE
Synonyms:germaniumtetrahydride;Monogermane;GERMANE, 99.997+%, ELECTRONIC GRADE;GERMANE 99.99+%;Tetrahydridegermanium;Einecs 231-961-6;Germane [un2192] [poison gas];Un2192
CAS:7782-65-2
MF:GeH4
MW:76.64
EINECS:231-961-6
Product Categories:Inorganics;Chemical Synthesis;Compressed and Liquefied GasesVapor Deposition Precursors;Gases;Precursors by Metal;Synthetic Reagents
Mol File:7782-65-2.mol
GERMANE Structure
GERMANE Chemical Properties
Melting point -165°C
Boiling point -88°C
density 1,53 g/cm3
vapor density 1.53 (142 °C, vs air)
form colorless gas
Water Solubility insoluble H2O; soluble liquid ammonia, slightly soluble hot HCl [HAW93]
Merck 13,4418
CAS DataBase Reference7782-65-2
Safety Information
Hazard Codes F,T,T+,F+
Risk Statements 17-21/22-23-26-22-12
Safety Statements 16-24-26-36/37/39-45
RIDADR 2192
WGK Germany 3
RTECS LY4900000
TSCA Yes
HazardClass 2.3
MSDS Information
GERMANE Usage And Synthesis
IntroductionGermanium forms several tetravalent hydrides that have the general formula GenH2n+2 similar to alkanes and silicon hydrides. The formulas and CAS Registry numbers of the three common hydrides are:
Name                                            CAS No.                Formula
Monogermane (the tetrahydride)             [7782-65-2]               GeH4
Digermane                                         [13818-89-8]              Ge2H6
Trigermane                                        [14691-44-2]              Ge3H8
Monogermane is used to produce high purity germanium metal. It also is used as a doping substance for electronic components.
ReactionGermanium hydrides are less stable than the corresponding hydrides of carbon and silicon. Thermal decomposition produces germanium and hydrogen. Monogermane decomposes at 350°C, while digermane and trigermane decompose to their elements at 210° and 190°C, respectively, at 200 torr. At elevated temperatures the hydrides dissociate, depositing mirror-like germanium crystals on container surfaces. Heating with oxygen yields germanium oxide. GeO2:
GeCl4 + 2O2→GeO2 + 2H2O
PreparationPolygermanes may be prepared by the reaction of magnesium germanide, Mg2Ge, with dilute hydrochloric acid in an atmosphere of hydrogen. Monogermane, GeH4, may be prepared by various methods, such as: (1) Reduction of germanium tetrachloride, GeCl4, with lithium aluminum hydride in ether, (2) Electrolysis of a solution of germanium oxide, GeO2, in sulfuric acid using lead electrodes, and (3) Reaction of magnesium germanide and ammonium bromide, NH4Br, in liquid ammonia.
ToxicityMonogermane is moderately toxic. Inhalation causes irritation of the respiratory tract. Chronic exposure can induce kidney and liver damage.
Chemical PropertiesColorless gas, decomposes at 350C, insoluble in water, soluble in liquid ammonia, slightly soluble in hot hydrochloric acid.
Chemical PropertiesGermane is a colorless, flammable gas. Pungent odor.
DefinitionA germanium hydride of the general formula GenH2n+2.
General DescriptionGERMANE is a colorless gas with a pungent odor.The gas is heavier than air and a flame can flash back to the source of leak very easily. GERMANE is toxic by inhalation. Prolonged exposure of the containers to fire or intense heat may result in their violent rupturing and rocketing. GERMANE is used in making electronics.
Air & Water ReactionsHighly flammable. Pyrophoric, the germanium hydrides are spontaneously flammable in air [Merck 1989]. Germanium has an exothermic reaction when dropped in water accompanied by crackling [Bretherick's 5th edition].
Reactivity ProfileHydrides, such as GERMANE, are reducing agents and react rapidly and dangerously with oxygen and with other oxidizing agents, even weak ones. Thus, they are likely to ignite on contact with alcohols. Hydrides are incompatible with acids, alcohols, amines, and aldehydes.
Health HazardTOXIC; may be fatal if inhaled or absorbed through skin. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control may cause pollution.
Fire HazardFlammable; may be ignited by heat, sparks or flames. May form explosive mixtures with air. Vapors from liquefied gas are initially heavier than air and spread along ground. Vapors may travel to source of ignition and flash back. Some of these materials may react violently with water. Cylinders exposed to fire may vent and release toxic and flammable gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket. Runoff may create fire or explosion hazard.
Safety ProfilePoison by inhalation. Moderately toxic by ingestion. A hemolytic gas. Ignites spontaneously in air. Incompatible with Brz. See also HYDRIDES, GERMANIUM COMPOUNDS, and GERMANIUM.
Potential ExposureThis material is used as a doping agent in solid state electronic component manufacture.
First aidIf this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. If this chemical has been inhaled, remove from exposure, begin res cue breathing (using universal precautions, including resusci tation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility.
ShippingUN2192 Germane, Hazard Class: 2.3; Labels: 2.3-Poisonous gas, 2.1-Flammable gas, Inhalation Hazard Zone B. Cylinders must be transported in a secure upright position, in a well-ventilated truck. Protect cylinder and labels from physical damage. The owner of the compressed gas cylinder is the only entity allowed by federal law (49CFR) to transport and refill them. It is a violation of transportation regulations to refill compressed gas cylinders without the express written permission of the owner.
IncompatibilitiesPyrophoric; may ignite spontaneously in air. Attacks hydrocarbon and fluorocarbon lubricants. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from oxidizing and nonoxidizing acids, ammonia, aqua regia, sulfuric acid, carbonates, halogens, and nitrates. Explosive reaction or ignition with potassium chlorate, potassium nitrate, chlorine, bromine, oxygen, and potas sium hydroxide in the presence of heat.
Waste DisposalReturn refillable compressed gas cylinders to supplier. Dispose of contents and container to an approved waste disposal plant. All federal, state, and local environmental regulations must be observed.
GERMANE Preparation Products And Raw materials
Tag:GERMANE(7782-65-2) Related Product Information
Trichloro(phenyl)germane,Germane, trichlorophenyl- Germane, bromotrimethyl- Germane,tetrachloro ETHYLGERMANIUM TRICHLORIDE Germane, chlorotriphenyl- TRIETHYLGERMANIUM CHLORIDE TRIPHENYLGERMANIUM BROMIDE AMMONIUM HEXAFLUOROGERMANATE Germane, dichlorodimethyl- METHYLGERMANIUM TRICHLORIDE DIETHYLGERMANIUM DICHLORIDE HEXAPHENYLDIGERMOXANE Germanium oxide TRIMETHYLGERMANIUM CHLORIDE DI-N-BUTYLGERMANIUM DICHLORIDE TETRAPHENYLGERMANE DIPHENYLGERMANIUM DICHLORIDE TRIMETHYLGERMANIUM IODIDE