The Creation Wiki is made available by the NW Creation Network
Watch monthly live webcast - Like us on Facebook - Subscribe on YouTube

Stibine

From CreationWiki, the encyclopedia of creation science
Jump to: navigation, search
Stibine
Stibine.pngStibine-3D-vdW.png
General
Systematic name Stibine
Other names Antimony trihydride
Molecular formula H3Sb
SMILES [Sb]
Molar mass Molar mass::124.784 g/mol
Appearance colourless gas
CAS number CAS number::7803-52-3
Properties
Density and phase Density::5.48 g/L,
Solubility in water insoluble
Melting point Melting point::-88°C
Boiling point Boiling point::-17°C
Structure
Molecular shape Trigonal pyramidal
Hazards
MSDS Material safety data sheet
Main hazards

Harmful (Xn)
Dangerous for the environment (N)

NFPA 704

NFPA 704 svg.png

4
4
2
 
Flash point Flammable gas
R/S statement R: R20/22 R50/53
S: (S2) S61
RTECS number WJ0700000
Except where noted otherwise, data are given for
materials in their standard state (at 25 °C, 100 kPa)
Disclaimer and references

Stibine is a chemical compound that remains a gas with no color. The chemical formula for Stibine is H3Sb, and is also known as Antimony hydride. It wasn't until 1837 that Lewis Thomson and Pfaff ultimately discovered Stibine. It took quite a long time to find properties of this toxic gas because a suitable synthesis was not available at the time. A man named Francis Jones tested several synthesis methods in 1876, but Alfred Stock determined the properties in 1901.[1]

Properties

Stibine is a colorless gas that produces a very strange odor. This happens when antimony containing lead charges with a battery. Stibine's physical state is gas that occupies the same odor of hydrogen sulfide. But seemingly there was no odor threshold data located.[2] The properties of Stibine are very similar to those of Arsine. It is very unstable and typical of heavy hydride. The preparation of Stibine can be created by the reaction of Sb3+ sources with H- equivalents.[1]

Production

Stibine comes from Antimony and can be produced in different ways. It can be produced when strong reacting agents react with acid solutions of Antimony. It can also be produced when batteries containing lead are charged. These processes unfortunately require Nascent Hydrogen which makes it a bit more difficult to produce. Stibine can be created by dissolving Magnesium-Antimony or Zinc-Antimony in diluted hydrochloric acid. The formation of lead plates is another way in which Stibine can be produced. [2]

Uses

Stibine is a man-made compound which makes the abundance of it, at a minimum. Some of the uses of Stibine are prominently used in the semiconductor industry. Arsine and Stibine are both used in making microchips. It is also used in industrial processes such as welding, soldering, and galvanizing. Stibine is prepared for industrial use by reaction of Antimony compounds with water or hydrochloric acid. Stibine is also used extensively as doping agents. Which means it is added to a pure substance to produce a deliberate change especially with semiconductors and laser crystals. [3] It could also be used in glass dyes or light emitting diodes, but this is yet to be determined. [4]

Hazards and Effects

Stibine can cause death from pulmonary congestion because it is an eye and respiratory irritant. It is also a hemolytic poison which goes into the blood and infects it. Humans get exposed to Stibine in factories where it is produced but suffer more effects from it with Arsine and Sulfuric acid. More harmful effects can occur when breathing in Stibine at production sites, especially when it is produced from the charged batteries.[2] Stibine can be very harmful for fires, the environment, and damage to red blood cells. The release of Stibine exposure usually occurs through activities including welding and soldering. When Stibine is inhaled, it enters the blood by the lungs, while there it attacks and damages red blood cells. Some short term exposure to Stibine and Arsine might cause some of these symptoms: weakness, headache, drowsiness, sickness, abdominal pain, shortness of breath, yellow skin and eyes and red urine. Exposure to high concentrations of this chemical can cause conciseness and death. When people survive a short-term exposure it still can leave long term effects including kidney damage, confusion, memory loss, numbness and pain in the extremities. All of these effects depend on the amount and situation on which Stibine is consumed or exposed. Stibine exposure is very rare to because it is only in a couple production industries, and the public will not be exposed to a high enough level of it. [4]

References

  1. 1.0 1.1 Hangzhou weiku information & Technology Co.. Stibine LookChem. Web. Accessed 30 January 2012.
  2. 2.0 2.1 2.2 Author last, first. This is the preparation formula for Stibine, 4 SbCl3 + 3 NaBH4 → 4 SbH3 + 3 NaCl + 3 BCl3 Page-AEGLs EPA. Web. 6/2008 .
  3. Wiley, John. Doping Agent. Your Dictionary. Web. Accessed 29 January 2012.
  4. 4.0 4.1 Foxall, K. Arsine and Stibine HPA. Web. 2007.