potassium dichromate


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potassium dichromate

n.
A bright yellowish-red crystalline compound, K2Cr2O7, used as an oxidizing agent, and in pyrotechnics, explosives, and safety matches.

potassium dichromate

n
(Elements & Compounds) an orange-red crystalline soluble solid substance that is a good oxidizing agent and is used in making chrome pigments and as a bleaching agent. Formula: K2Cr2O7

potas′sium dichro′mate



n.
an orange-red, crystalline, water-soluble, poisonous powder, K2Cr2O7, used chiefly in dyeing and photography and as a laboratory reagent.
[1880–85]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.potassium dichromate - an orange-red salt used in making dyes and in photography
salt - a compound formed by replacing hydrogen in an acid by a metal (or a radical that acts like a metal)
References in periodicals archive ?
Tenders are invited for Supply of Chemical items and Scientific equipment to SHC, Ballari : Sulphuric acid (CP), Potassium Dichromate, Sucrose (AR), Sodium Bicarbonate, Ammonium Molybdate, Potassium Antimony Tartarate, Activated Charcoal, Potassium Dihydrogen Orthophosphate (AR), Potassium Chloride (AR), Ammonium Chloride, Ethyl Alcohol, MgCl2.
The potassium dichromate oxidation method was used to determine the content of the organic matter in the soil.
Based on the above scheme we have determined the toxicity of aqueous solutions containing the following individual toxicants: potassium dichromate (2.
Vowing revenge, Bond, a laboratory technician, stole the chemical 10-chloro-10H phenoxarsine from the company where she worked and purchased potassium dichromate on Amazon.
During January-February 2011 and 2012, fecal samples from freer-anging animals were collected and placed in 10% formalin (2011) or potassium dichromate (2012).
Polymerization-inhibited juice was prepared by the extraction of polyphenolics, by adsorption onto polyvinylpolypyrrolidone, by the recrystallization of polyphenolics, by oxidation to quinones by potassium dichromate, and by adding 2% TETA and quinones to the juice.
Looking for an Alternative to Potassium Dichromate in the Chemistry Lab.
These characteristics included reproduction when bits of the gyrating liquid mercury would break into two, primitive metabolism with the reaction between the mercury and the acid plus potassium dichromate, and response to a stimulus in the movement caused by the addition of the acidified potassium dichromate to the mercury.
The Walkley-Black organic C method (Walkley and Black 1934) uses the heat of dilution from the addition of sulfuric acid to a potassium dichromate solution to help oxidise the organic matter.
The oxidizable substances in the test sample volume are oxidized by a known quantity of potassium dichromate in the presence of mercuric sulfate and silver catalyst in an environment of concentrated sulfuric acid in a defined time interval.
Potassium dichromate solution was diluted with the growth media (SDA) to obtain varying concentrations from 0.
Ten nauplii added in 3 mL of ASW was used as a negative control while potassium dichromate was used as positive control during the experiment.