Antimonous hydride 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 möglich.
CHEMISCHE GEFAHREN
Die Substanz zersetzt sich langsam bei Raumtemperatur, aber schnell bei 200 °C unter Bildung von metallischem Antimon und Wasserstoff. Erhöhte Feuergefahr. Reagiert sehr heftig mit Chlor, konzentrierter Salpetersäure und Ozon. Feuer- und Explosionsgefahr.
ARBEITSPLATZGRENZWERTE
TLV: 0.1 mg/m?(as TWA) (ACGIH 2007).
MAK: IIb (nicht festgelegt, aber Informationen vorhanden) (DFG 2007).
AUFNAHMEWEGE
Aufnahme in den Körper durch Inhalation.
INHALATIONSGEFAHREN
Eine gesundheitsschädliche Konzentration des Gases in der Luft wird beim Entweichen aus dem Behälter sehr schnell erreicht.
WIRKUNGEN BEI KURZZEITEXPOSITION
WIRKUNGEN BEI KURZZEITEXPOSITION: Schnelle Verdampfung der Flüssigkeit kann zu Erfrierungen führen. Die Substanz reizt stark die Atemwege. Möglich sind Auswirkungen auf das Blut mit Blutzellzerstörung. Exposition oberhalb des Arbeitsplatzgrenzwertes kann zum Tod führen. ärztliche Beobachtung notwendig.
LECKAGE
Gasdichter Chemikalienschutzanzug mit umgebungsluftunabhängigem Atemschutzgerät. Gefahrenbereich verlassen! Fachmann zu Rate ziehen! Belüftung. Zündquellen entfernen.
Chemische Eigenschaften
Stibine is a colorless gas. Characteristic disagreeable odor. It is produced by dissolving zinc/antimony or magnesium-antimony in hydrochloride acid
Verwenden
Has been used as fumigating agent.
synthetische
The electrolytic preparation method of antimonous hydride uses a Pt anode and a Pt/Ir cathode in an electrolyte consisting of 1.7 liters of 4N H2SO4, 80 g of tartaric acid, and 8 g of Sb.
Allgemeine Beschreibung
A colorless gas with a disagreeable odor. A moderate fire hazard that may yield toxic fumes when heated above 392°F. Irritating to skin, eyes, and mucous membranes. Heavier than air. If exposed to prolonged fire or intense heat, the container may rupture violently or rocket.
Air & Water Reaktionen
Highly flammable.
Reaktivität anzeigen
An explosion occurs if Antimonous hydride is heated with ammonia or chlorine. Antimonous hydride and concentrated nitric acid explode [Mellor 9:397 (1946-47)].
Hazard
Toxic.
Health Hazard
TOXIC; 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.
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. Potentially explosive decomposition at 200°C. Flammable when exposed to heat or flame. Explosive reaction with ammonia + heat, chlorine, concentrated nitric acid, ozone. Incompatible with oxidants. The decomposition products are hydrogen and metahc antimony. When heated to decomposition it emits toxic fumes of Sb. Used as a fumigating agent. See also ANTIMONY COMPOUNDS and HYDRIDES.
mögliche Exposition
Stibine is used as a fumigating agent. Exposure to stibine usually occurs when stibine is released from antimony-containing alloys during the charging of storage batteries, when certain antimonial drosses are treated with water or acid, or when antimony-containing metals come in contact with acid. Operations generally involved are metallurgy, welding or cutting with blow torches; soldering, filling of hydrogen balloons; etching of zinc; and chemical processes.
Versand/Shipping
UN2676 Stibine, Hazard Class: 2.3; Labels: 2.3-Poisonous gas, 2.1-Flammable gas, Hazard Zone A. UN3260 Corrosive solid, acidic, inorganic, n.o.s., Hazard class: 8; Labels: 8-Corrosive material, Technical Name Required. 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.
Inkompatibilitäten
A highly flammable gas. Incompatible with acids, halogenated hydrocarbons; oxidizers, moisture, chlorine, ammonia. Reacts violently with chlorine, concentrated nitric acid or ozone. Decomposes in air. Thermally unstable: quick decomposition .190C producing metallic antimony and explosive hydrogen gas.
Waste disposal
Return refillable compressed gas cylinders to supplier. Dissolve in hydrochloric acid; add water to produce precipitate; add acid to dissolve again; precipitate with H2S; filter and dry precipitate and return to supplier.
Antimonous hydride Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
