What's the difference between calcination and decomposition?

Calcination


Definition:

  • (n.) The act or process of disintegrating a substance, or rendering it friable by the action of heat, esp. by the expulsion of some volatile matter, as when carbonic and acid is expelled from carbonate of calcium in the burning of limestone in order to make lime.
  • (n.) The act or process of reducing a metal to an oxide or metallic calx; oxidation.

Example Sentences:

  • (1) Infectivity of linear lambdaDNA molecules is proved to be about a hundred times higher in calcinated E. coli K12 (lambai434) than in E. coli K12(lambda-): the levels of transfection were 1-3-10(7) and 1-2-10(5) infective centers per 1 mug DNA, respectively.
  • (2) The lithium content of the tissues was assayed by flame spectrophotometry of calcinated biopsy material taken from the epidermis, the dermis and the subcutaneous adipose tissue from 4 of our 5 cases.
  • (3) For some metals the analysis can be directly achieved by means of atomisation of the biological liquid in a flame or in a graphite furnace; for other metals it is necessary a treatment of the sample to separate the metal from the rest of the matrix, which can be: calcination, microcalcination, mining.
  • (4) The results obtained from the ethanol-treated rats were similar to those obtained in experiments on control rats fed on diets not containing calcinated bone meal.
  • (5) In those working with calcined clay, there was an increased prevalence of abnormality of the FEV1, but not the FVC, when compared to both wet and dry processors and which could not be explained by either cigarette smoking or the presence of pneumoconiosis.
  • (6) Dehydration conditions similar to those employed in wet calcination of gypsum appeared to be produced under atmospheric pressure when NaCl was present.
  • (7) He observed that metals gain weight during their calcination (oxidation) and concluded that air is taken up during this process.
  • (8) The magnitude of abnormality in the calcined clay workers was, however, unlikely to lead to disabling impairment.
  • (9) The results reveal that arsenic contents in pig native copper are about 10 times of those in the calcination samples.
  • (10) TCP capsules with an outer diameter of 0.8 cm and an inner diameter of 0.4 cm were prepared by compressing calcined materials in a cylindrical dye at a compression load of 700 Kg.
  • (11) Administration of vitamin D in a dose of 400 IU and increase of calcium consumption up to 110-120 mg and of phosphorus to 45-57 mg per kg body weight at the expense of calcinated cottage introduction into the diet provide for the optimal levels of 25-hydroxycholecalciferol and calcium in the blood of these children.
  • (12) In Experiment 2, urinary Mg excretion on d 4 and 5 of the collection was lower for sheep fed the brine oxide than for those fed sulfate or oxide from calcined magnesite.
  • (13) The most toxic material tested was BeSO4, followed by BeO calcined at 500 degrees C, then BeO calcined at 1000 degrees C. An in vitro dissolution technique was used to measure the relative solubility of the BeO particles.
  • (14) In CT, diagnosis was based on the detection of a formation with a capsule containing calcinates and air masses.
  • (15) Bodies found in acts of war or natural disasters are sometimes impossible to identify for police or legal purposes, notably because of calcination or putrefaction.
  • (16) Therefore, calcining the two radionuclides together in an aerosol altered the kinetics of both following inhalation in rats, but most dramatically for 244Cm.
  • (17) Hereby the tissue calcination will be defined from the real ossifications and the direct exogene shades.
  • (18) Fetuses were fully calcinated and ash weight and calcium content determined.
  • (19) Although each study suffers from some deficiencies, as is common in such retrospective studies, the findings in concert strongly indicate that nickel emitted from the calcining and sintering operations is a potent carcinogen resulting in nasal and pulmonary cancers.
  • (20) The present paper reports the determination of Fe, Cu, Zn, Mn and As in complex prescription decoctions of ochre and calcined ochre by atomic absorption spectroscopy.

Decomposition


Definition:

  • (n.) The act or process of resolving the constituent parts of a compound body or substance into its elementary parts; separation into constituent part; analysis; the decay or dissolution consequent on the removal or alteration of some of the ingredients of a compound; disintegration; as, the decomposition of wood, rocks, etc.
  • (n.) The state of being reduced into original elements.
  • (n.) Repeated composition; a combination of compounds.

Example Sentences:

  • (1) The ADAM derivative of carnitine was separated from decomposition products of the reagent and related compounds such as amino acid derivatives on a silica gel column eluted with methanol-5% aqueous SDS-phosphoric acid (990:10:1).
  • (2) The decomposition of nafcillin and penicillin G solutions was hastened significantly by magnesium sulphate due to effect on the pH values of the solutions.
  • (3) The UV and IR absorption spectra of compounds present in the eluate were compared with those of model compounds that were assumed to exist in the gel as impurities after the polymerization (monomers and oligomers of hydroxyethyl methacrylate, decomposition products of initiators).
  • (4) The decomposition of nitrosourea is facilitated when a proton or lithium ion is positioned at the oxygen of the nitroso group.
  • (5) Inactivation is due to alkylation by 2-methylene-3(2H)-furanone, a decomposition product of the enzymic product 3'-keto-2'-deoxyuridine triphosphate.
  • (6) During heat treatment, decomposition to isopilocarpine predominated over decomposition to pilocarpic or isopilocarpic acid.
  • (7) The rate of decomposition of cis-4-OHCP was much faster in plasma than in buffer at pH 7.4.
  • (8) Hydroxyapatite thermal decomposition product is a mixture of alpha-tricalcium phosphate and tetracalcium phosphate.
  • (9) A quantitative assay has been developed for putrescine, cadaverine, histamine, and several free amino acids--lysine, arginine, and histidine--as a measure of decomposition.
  • (10) At temperatures of 200-300 degrees C hexamine decomposition is reported to produce mainly ammonia and formaldehyde.
  • (11) The hygienic control of polluted surface waters has to be correlated with measurements of the decomposition rate of heterotrophic microbial populations.
  • (12) Using the malonic acid concentration as a measure of decomposition, this method was used to determine the hydrolytic stability of Meldrum's acid and its skin penetration properties.
  • (13) Their growth development during the treatment agreed very well with the results of decomposition and deodorization.
  • (14) The kinetic 13C isotope effect on the decomposition of carbamoyl phosphate to cyanate and phosphate is 1.058.
  • (15) Enhanced esterification of cholesterol could function as an early primary factor injuring the myelin membrane, the lysocompounds may be involved at a later stage in the pathomechanism of myelin decomposition in the central nervous system.
  • (16) The cholesterol is possibly a decomposition product of the monohydrate.
  • (17) The importance of the decomposition of phosphatidylinosite and of its phosphate esters in binding of certain ligands to receptors is shown.
  • (18) By decomposition of reconstituted receptors with proteases, we demonstrated the homogeneous orientation of the receptor with its extracellular head group pointing to the convex side of the vesicles.
  • (19) The injected decomposition product was found to be solid at the time of sacrifice in all animals.
  • (20) The ion content of heart tissue was measured with flame spectrometer after the decomposition of myocardium by Lumatom tissue solubizer.