563-68-8 Usage
Chemical Properties
White to off-white fine crystalline powder
Uses
Different sources of media describe the Uses of 563-68-8 differently. You can refer to the following data:
1. Acetic Acid Thallium(1+) Salt, is a Thalum salt, considere to be a hazardous material.It can be used as in Chemical Synthesis, Micro/NanoElectronics, and Materials Science.
2. Rodenticide, insecticide; fireworks dye; in optical glass; depilatory.
3. Thallium acetate is used in high
specific gravity solutions to separate ore constituents by flotation.
It was formerly used as a depilating agent by dermatologists
via oral administration in cases of ringwormof the scalp,
causinga number ofdeathsand poisonings.Thallium(I) acetate
(0.1M) is used to enhance phosphorescence emission on laserinduced
room-temperature phosphorimetry.
Production Methods
Thallium acetate is prepared from thallium(I) hydroxide or
carbonate and acetic acid, which are then evaporated and
recrystallized from alcohol.
Definition
ChEBI: An acetate salt comprising equal numbers of acetate and thallium ions.
General Description
White odorless crystalline solid. Density 3.68 g / cm3. A dangerous poison.
Reactivity Profile
THALLIUM(I) ACETATE gives aqueous solutions that are basic (neutralize acids). These neutralizations generate only a little heat. Neither a strong reducing agent nor oxidizing agent, but can serve as both.
Health Hazard
Thallium is one of the more toxic elements both as an acute and a chronic poison. Effects of exposure are cumulative and onset of symptoms may be delayed 12 to 24 hours. May be fatal if inhaled, ingested or absorbed through the skin. Irritating to skin and eyes. Readily absorbed through the skin and digestive tract. Ingestion of soluble thallium compounds has caused many deaths. Ingestion of sublethal quantities may cause nausea, vomiting, diarhea, abdominal pain, and bleeding from the gut accompanied or followed by drooping eyelids, crossed eyes, weakness, numbness, tingling of arms and legs, trembling, tightness and pain in the chest. Loss of hair may occur in two to three weeks. Severe intoxication may cause prostration, rapid hearbeat, convulsions, and psychosis. Some effects may be permanent.
Safety Profile
Human poison by ingestion. Experimental poison by ingestion, intravenous, intraperitoneal, and subcutaneous routes. An experimental teratogen. Mutation data reported. When heated to decomposition it emits toxic fumes of T1. See also THALLIUM COMPOUNDS.
Check Digit Verification of cas no
The CAS Registry Mumber 563-68-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,6 and 3 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 563-68:
(5*5)+(4*6)+(3*3)+(2*6)+(1*8)=78
78 % 10 = 8
So 563-68-8 is a valid CAS Registry Number.
InChI:InChI=1/C2H4O2.Tl/c1-2(3)4;/h1H3,(H,3,4);
563-68-8Relevant articles and documents
Preparation of cyclic ketones
-
, (2008/06/13)
Cyclic ketones, notably cyclopentanone and 2,2-dimethylcyclopentanone, are simply, economically and efficiently prepared, even on an industrial scale, by decarboxylating/cyclizing a dicarboxylic acid, in liquid phase, in the presence of a catalytically effective amount of a metal or compound thereof selected from among boron, aluminum, gallium, indium, thallium, tin, antimony, bismuth, molybdenum, rubidium, cesium and vanadium.
THALLIUM AND MERCURY IN PYRROLE CHEMISTRY. USE OF C-THALLIATED AND C-MERCURIATED PYRROLE DERIVATIVES FOR SELECTIVE RING FUNCTIONALISATIONS via ipso-DETHALLIATION AND -DEMERCURIATION REACTIONS
Monti, Donato,Sleiter, Giancarlo
, p. 771 - 774 (2007/10/02)
The use of C-thalliated and C-mercuriated pyrroles to achieve selective introduction of various functional groups in a β position is described.High yields of hardly accessible pyrrole derivatives (such as nitropyrrole) can thus be obtained.
Reactions of Monomethylthallium Diacetate and Amines
Knips, Ulrich,Huber, Friedo
, p. 434 - 436 (2007/10/02)
Decomposition of MeTl(OAc)2 (Me = CH3, HOAc = CH3COOH) in methanol in the presence of amines, like 2-, 3- and 4-picoline, benzylamines, dimethylaniline causes mainly N-methylation; the concurring O-methylation of acetate, giving MeOAc, is only a minor importance.The rate of N-methylation increases in the series 2-picoline /= pyridine 3-picoline 4-picoline /= dimethylaniline /= dimethylbenzylamine.Picolinic acid and MeTl(OAc)2 (molar ratio 1:1) react to give 25percent N-methylpicolinic acid and 75percent MeOAc; when the molar ratio was at least 2:1, a 1:1 mixture of N-methylpicolinic acid and the methylester of picolinic acid was produced.These results and rate changes in different solvents are explained by assuming MeTlOAc(+) being the active methylthallium electrophile. - Keywords: Monomethylthallium Diacetate, Amines, Methylation, Reaction Rate
