Germaniumtetrahydrid Chemische Eigenschaften,Einsatz,Produktion Methoden
ERSCHEINUNGSBILD
FARBLOSES KOMPRIMIERTES GAS MIT STECHENDEM GERUCH.
PHYSIKALISCHE GEFAHREN
Das Gas ist schwerer als Luft und kann sich am Boden ausbreiten. Fernzündung m?glich.
CHEMISCHE GEFAHREN
Kann sich beim Kontakt mit Luft spontan entzünden. Zersetzung oberhalb von 350°C und bei Kontakt mit Oxidationsmitteln wie Salpeters?ure.
ARBEITSPLATZGRENZWERTE
TLV: 0.2 ppm (als TWA); (ACGIH 2008).
MAK: IIb (nicht festgelegt, aber Informationen vorhanden) (DFG 2008).
AUFNAHMEWEGE
Aufnahme in den K?rper durch Inhalation.
INHALATIONSGEFAHREN
Eine gesundheitssch?dliche Konzentration des Gases in der Luft wird beim Entweichen aus dem Beh?lter sehr schnell erreicht.
WIRKUNGEN BEI KURZZEITEXPOSITION
WIRKUNGEN BEI KURZZEITEXPOSITION: Die Substanz reizt die Augen, die Haut und die Atemwege. M?glich sind Auswirkungen auf das Blut mit nachfolgenden Blutzellsch?digungen. Exposition kann zum Tod führen.
LECKAGE
Gefahrenbereich verlassen! Fachmann zu Rate ziehen! Belüftung. Pers?nliche Schutzausrüstung: Vollschutzanzug mit umgebungsluftunabh?ngigem Atemschutzger?t.
R-S?tze Betriebsanweisung:
R17:Selbstentzündlich an der Luft. Spontaneously flammable in air.
R21/22:Gesundheitssch?dlich bei Berührung mit der Haut und beim Verschlucken.
R23:Giftig beim Einatmen.
S-S?tze Betriebsanweisung:
S16:Von Zündquellen fernhalten - Nicht rauchen.
S24:Berührung mit der Haut vermeiden.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn m?glich, dieses Etikett vorzeigen).
Chemische Eigenschaften
Germane is a colorless, flammable gas.
Pungent odor.
Verwenden
It is used to produce high-purity germaniummetal and as a doping substance for electroniccomponents.
Definition
A germanium hydride of the general
formula GenH2n+2.
Allgemeine Beschreibung
GERMANE 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 Reaktionen
Highly 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].
Reaktivit?t anzeigen
Hydrides, 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 Hazard
Germane is a moderately toxic gas. Itexhibits acute toxicity, lower than that ofstannane, but much greater than that ofsilane. By contrast, its poisoning effects aresomewhat similar to the group VB metalhydrides, arsine, and stibine, while beingmuch less toxic than the latter two compounds.Exposure to this gas can cause injuryto the kidney and liver. A 1-hour exposure toa concentration of 150–200 ppm in air wasfatal to test animals, including mice, guineapigs, and rabbits. Inhalation of the gas canalso cause irritation of the respiratory tract.
Brandgefahr
Flammable; 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.
Sicherheitsprofil
Poison by inhalation.
Moderately toxic by ingestion. A hemolytic
gas. Ignites spontaneously in air.
Incompatible with Brz. See also
HYDRIDES, GERMANIUM
COMPOUNDS, and GERMANIUM.
m?gliche Exposition
This material is used as a doping
agent in solid state electronic component manufacture.
Versand/Shipping
UN2192 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.
Inkompatibilit?ten
Pyrophoric; 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 disposal
Return 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.
Germaniumtetrahydrid Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte