7803-52-3 Usage
Uses
Used in Fumigation Applications:
Antimonous hydride is used as a fumigating agent. Although its commercial application is limited, an exposure risk may arise when it is formed as a result of mixing an antimony compound with a strong reducing agent in the presence of acid.
Air & Water Reactions
Highly flammable.
Reactivity Profile
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
Stibine is a highly toxic gas; the acuteand chronic effects are similar to those ofarsine. Exposure to 100 ppm in air for 1 hourwas lethal to mice and guinea pigs, causingdelayed death within 1-2 days. Thelethal concentration in air for humans isunknown. Like arsine, stibine is a hemolyticagent, causing injury to the kidney andliver. The toxicity is somewhat lower thanthat of arsine. In severe poisoning, deathcan result from renal failure and pulmonaryedema.Stibine is an irritant to the lung. Othertoxic symptoms from inhaling this gas areheadache, weakness, nausea, and abdominalpain. There is no report on its carcinogenicityin animals or humans. Because of its similarityto arsine in chemical and toxicologicalproperties, stibine is expected to exhibit carcinogenicaction..
Safety Profile
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.
Potential Exposure
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.
Source
Produced accidentally as a result of
the generation of nascent hydrogen in the presence
of antimony; formed when acid solutions
of antimony compounds are treated with
reducing agents.
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.
Incompatibilities
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.
Check Digit Verification of cas no
The CAS Registry Mumber 7803-52-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,8,0 and 3 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 7803-52:
(6*7)+(5*8)+(4*0)+(3*3)+(2*5)+(1*2)=103
103 % 10 = 3
So 7803-52-3 is a valid CAS Registry Number.
