Aluminum sulfide, also called dialuminium trisulfide, is an ionic compound of aluminum and also sulfur stood for by the chemistry formula Al2S3 <1, 2>. It exists in various crystalline forms and hydrolyzes to aluminum hydroxide/oxide <3, 4>.
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Aluminum Sulfide Identification
|CAS Number||1302-81-4 <1, 2>|
|PubChem CID||16684788 <6>|
|ChemSpider ID||140154 <1>|
|EC Number||215-109-0 <1, 2>|
|InChI Key||ZPXDOGRYMSWBBM-UHFFFAOYSA-N <6>|
Aluminum Sulfide Formula
How is Aluminum Sulfide Prepared
Its synthetic through straight heating the aluminum and sulfur can be stood for by the complying with equation <7>:
2Al + 3S → Al2S3
However, the reaction is very exothermic, and it is not desirable to warm the entire mixture <7>. Also, sulfur is a volatile reactant that melts away prior to the reaction takes place <7>. Therefore, lead sulfide is often used for the preparation of Al2S3 <7>:
2Al + 3PbS → Al2S3 + 3Pb
Reactions with other Compounds
Aluminum Sulfide and Water
When aluminum sulfide is exposed to humidity in the atmosphere, it undergoes hydrolysis reaction to type aluminum hydroxide and hydrogen sulfide <5>.
Al2S3 + 6H2O → 2Al(OH)3 + 3H2S
Aluminum Sulfide and Hydrochloric Acid
Aluminum sulfide top top reacting with hydrochloric acid forms hydrogen sulfide and also aluminum chloride, as shown below <8>:
Al2S3 + 6HCl → 2AlCl3 + 3H2S
Aluminum Sulfide Lewis Structure
Properties and Characteristics the Aluminum Sulfide
|Molar Mass/Molecular Weight||150.158 g/mol <1>|
|Color and Appearance||Gray flour or granules <2>|
|Melting Point||1,100 °C, 2,012 °F <2>|
|Boiling Point||1,500 °C, 2,732 °F <2>|
|Density||2.32 g cm-3 <2>|
|State of issue at room temperature (solid/liquid/gas)||Solid <2>|
|Solubility||Insoluble in (CH3)2CO (acetone) <9>|
|Solubility in Water||Reacts and also decomposes in H2O <9>|
|Heat capacity (C)||105.1 J/mol K|
|Standard Molar Enthalpy||-724 kJ/mol <9>|
|Standard Molar Entropy||116.9 J/mol K|
|Crystal Structure||Trigonal, tetragonal, hexagonal <3, 4>|
Aluminum Sulfide crystal Structure
What is It used forProducing organic compounds prefer ethanethiol and chemicals required for tanning and also making paper <10>Preparing hydrogen sulfide that has actually several industrial uses <11>
Is Aluminum Sulfide Toxic
Exposure to aluminum sulfide can cause skin and also severe eye wake up <12>. Inhalation that dust, vapor, or fumes deserve to cause difficulty in breathing <12>.
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