perchloric acid


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per·chlo·ric acid

 (pər-klôr′ĭk)
n.
A colorless, corrosive liquid, HClO4, explosively unstable under some conditions, that is a powerful oxidant used as a catalyst and in explosives.

perchloric acid

(pəˈklɔːrɪk)
n
(Elements & Compounds) a colourless syrupy oxyacid of chlorine containing a greater proportion of oxygen than chloric acid. It is a powerful oxidizing agent and is used as a laboratory reagent. Formula: HClO4. Systematic name: chloric(VII) acid

per·chlo·ric acid

(pər-klôr′ĭk)
A clear, colorless liquid, HClO4, that is very corrosive and, under some conditions, extremely explosive. It is a powerful oxidant and is used as a catalyst and in explosives.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.perchloric acid - a powerful oxidizing agent; forms perchlorates
acid - any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
Translations
perklorsyra
References in periodicals archive ?
In Scheme 2, the phosphonates 7a-e are resulted by the reaction of hydrazide 5 with formic acid under reflux to get the corresponding aldehyde 6 which is participated in three-component reaction with triphenyl phosphite and amine in the presence of perchloric acid to afford the products.
5% vanillin-acetic acid reagent (400 [micro]L) and perchloric acid (1000 [micro]L) were added, and the tube was placed in a water bath for 30 min at 65[degrees]C.
Each brain structure was homogenized in 4 equivalents of water, and again after the addition of 4 M perchloric acid before centrifugation (12 000xg, 10 min, 4[degrees]C).
To measure rate of net nitrate uptake, 50u l filtrate and 950u l of 5% perchloric acid were mixed and absorbance was taken at 204nm by UV visible spectrophotometer.
0.65 ml of 70% perchloric acid was added and then the tubes were placed in hot sand bath for about 30 min or until complete clearness.
Perchlorate is an inorganic anion and strong oxidizer and can contaminate water and soil due to the dissolution of solid salts of ammonium (N[H.sup.4.sup.+]), potassium ([K.sup.+]), magnesium ([Mg.sup.2+]), and sodium ([Na.sup.+]) perchlorate and perchloric acid (HCl[O.sub.4]) in water [1, 2].
Chromatographically pure acetonitrile (ACN) was obtained from Fisher Scientific (Pittsburgh, USA) and perchloric acid was obtained from Merck (New Jersey, USA).
The tube was warmed to 200oC so the white thick vapor of perchloric acid (HClO4) vanished.
Guaranteed reagents grade hydrochloric acid (37%), perchloric acid (70%), acetic acid, potassium chloride, ammonium acetate, sodium acetate, sodium tetraborate, boric acid, sodium carbonate, sodium bicarbonate, ammonia solution and ammonium chloride were from E-Merck, Dramstadt, Germany.
Sample pretreatment consisted of a one-step Protein Precipitation (PPT) with methanol and perchloric acid (HCI[O.sub.4]) of 0.10 ml plasma.
For instance, some organics (such as methanol) are very volatile, light weight and are not effectively adsorbed on the organic filter; whereas some acids (like perchloric acid) present special hazards and should be used in a specialized fume hood.
The perchloric acid was neutralized by adding 2 M potassium bicarbonate, was shaken gently for 1 min, and was stored for a minimum of 5 min in a refrigerator (4[degrees]C).