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Indium

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Name

Indium

EINECS 231-180-0
CAS No. 7440-74-6 Density 7.30
Solubility insoluble Melting Point 156 ºC
Formula In Boiling Point 2000 ºC
Molecular Weight 114.82 Flash Point 2072°C
Transport Information UN 3089 4.1/PG 2 Appearance solid
Safety S9-16-36/37/39-26-45-28 Risk Codes R20/21/22;R36/37/38   
Molecular Structure Molecular Structure of 7440-74-6 (Indium) Hazard Symbols
Synonyms

INE 07PB;Indium element;

 

Indium History

The German chemists Ferdinand Reich and Hieronymous Theodor Richter dissolved the minerals pyrite, arsenopyrite, galena and sphalerite in hydrochloric acid and distilled the raw zinc chloride. As it was known that ores from that region sometimes contain thallium they searched for the green emission lines with spectroscopic methods. They named the element with the blue spectral line indium. Richter went on to isolate the metal in 1864.
Until 1924, only approximately a gram of Indium (CAS NO.7440-74-6) constituted the world's supply.

Indium Consensus Reports

Reported in EPA TSCA Inventory.

Indium Standards and Recommendations

OSHA PEL: TWA 0.1 mg(In)/m3
ACGIH TLV: TWA 0.1 mg(In)/m3

Indium Specification

The Indium, with the cas registry number 7440-74-6, is a kind of silver gray fusible metal. This is insoluble in water, stable chemically but incompatible with strong acids, strong oxidizing agents, sulfur. Its product categories are including Inorganics; Indium; Metal and Ceramic Science; Metals; Catalysis and Inorganic Chemistry; Chemical Synthesis; IndiumMetal and Ceramic Science; IApplication CRMs; ICP CRMs; Alphabetic; Analytical Standards; ICP-OES/-MS; ICPSpectroscopy; Spectroscopy.

The physical properties of this chemical are below: (1)#H bond acceptors: 0; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 0; (4)Polar Surface Area: 0; (5)Exact Mass: 114.903878; (6)MonoIsotopic Mass: 114.903878; (7)Topological Polar Surface Area: 0; (8)Heavy Atom Count: 1; (9)Covalently-Bonded Unit Count: 1

The production method of this chemical is below: all kinds of waste and intermediate products from the production of lead, Zinc, antimony, tin go through the process of enriched oxidation, extraction, metathesis and electrolysis to get this chemical.

As to its usage, it is widely applied in many ways. It could be used as the doping agent in compound semiconductor and high purity semiconductor [semiconducting] material; It could also be used in producing low melting point alloy and indium; Then it could also be applied in electron electroplate industry.

When you are using this chemical, you should be very cautious. For one thing, it is irritant which may cause inflammation to the skin or other mucous membranes, and it is irritating to eyes, respiratory system and skin. For another thing, it is harmful which may cause damage to health. If by inhalation, in contact with skin and if swallowed, it will be harmful. In addition, it is highly flammable which may catch fire in contact with air, only needing brief contact with an ignition source, and it has a very low flash point or evolve highly flammable gases in contact with water. Beside all these, it is corrosive which may destroy living tissue on contact.

Due to so many dangers, you could take the different measures to deal with different cases. Wear suitable protective clothing, gloves and eye/face protection. If in case of contact with eyes, rinse immediately with plenty of water and seek medical advice, and if in case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible). Then when store it, keep container in a well-ventilated place away from sources of ignition. After contact with skin, wash immediately with plenty of soap-suds.

Additionally, you could convert the following datas into the molecular structure:
(1)Canonical SMILES: [In]
(2)InChI: InChI=1S/In
(3)InChIKey: APFVFJFRJDLVQX-UHFFFAOYSA-N 

Below are the toxicity information of this chemical:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LDLo subcutaneous 10mg/kg (10mg/kg)   "Toxicity of Industrial Metals," Browning, E., London, Butterworths, 1961Vol. -, Pg. 144, 1961.

 

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