Antimonous hydride

As stibine (SbH₃) is very similar to arsine (AsH₃), it is also detected by the Marsh test. This sensitive test detects arsine generated in the presence of arsenic.This procedure, developed around 1836 by James Marsh, is based upon treating a sample with arsenic-free zinc and dilute sulfuric acid: if the sample contains arsenic, gaseous arsine will form. The gas is swept into a glass tube and decomposed by means of heating around 250 – 300 °C. The presence of arsenic is indicated by formation of a deposit in the heated part of the equipment. The formation of a black mirror deposit in the cool part of the equipment indicates the presence of antimony.
In 1837 Lewis Thomson and Pfaff independently discovered stibine. It took some time before the properties of the toxic gas could be determined, partly because a suitable synthesis was not available. In 1876 Francis Jones tested several synthesis methods, but it was not before 1901 when Alfred Stock determined most of the properties of stibine.

Antimony and its compounds are on the Community Right-To-Know List.

OSHA PEL: TWA 0.1 ppm
ACGIH TLV: TWA 0.1 ppm
DFG MAK: 0.1 ppm (0.52 mg/m³)
DOT Classification:  2.3; Label: Poison Gas, Flammable Gas

For occupational chemical analysis use NIOSH: Stibine, 6008.

The Stibine, with the CAS registry number 7803-52-3, is also known as Antimony hydride. This chemical's molecular formula is H₃Sb and molecular weight is 124.78. What's more, its systematic name is called Stibane. Stibine is used in the semiconductor industry to dope small quantities of antimony via the process of chemical vapour deposition (CVD). Reports claim the use of this chemical as a fumigant but its instability and awkward preparation contrast with the more conventional fumigant phosphine.

Physical properties about Stibine are: (1)#H bond acceptors: 0; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 0; (4)Polar Surface Area: 0 Å².

Preparation of Stibine: this chemical can be prepared by the reaction of Sb³⁺ sources with H^– equivalents.

4 SbCl₃ + 3 NaBH₄ → 4 SbH₃ + 3 NaCl + 3 BCl₃

You can still convert the following datas into molecular structure:
(1) SMILES: [Sb]
(2) InChI: InChI=1S/Sb.3H
(3) InChIKey: OUULRIDHGPHMNQ-UHFFFAOYSA-N

The toxicity data is as follows:

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
cat	LCLo	inhalation	40ppm/1H (40ppm)	LUNGS, THORAX, OR RESPIRATION: ACUTE PULMONARY EDEMA	Journal of Industrial Hygiene and Toxicology. Vol. 28, Pg. 167, 1946.
dog	LCLo	inhalation	40ppm/1H (40ppm)	LUNGS, THORAX, OR RESPIRATION: ACUTE PULMONARY EDEMA	Journal of Industrial Hygiene and Toxicology. Vol. 28, Pg. 167, 1946.
guinea pig	LCLo	inhalation	92ppm/1H (92ppm)	KIDNEY, URETER, AND BLADDER: "CHANGES IN TUBULES (INCLUDING ACUTE RENAL FAILURE, ACUTE TUBULAR NECROSIS)"	"Toxicity of Industrial Metals," Browning, E., London, Butterworths, 1961Vol. -, Pg. 30, 1961.
mouse	LCLo	inhalation	100ppm/1H (100ppm)		"Toxicity of Industrial Metals," Browning, E., London, Butterworths, 1961Vol. -, Pg. 30, 1961.