What's the difference between chromic and chromium?

Chromic


Definition:

  • (a.) Pertaining to, or obtained from, chromium; -- said of the compounds of chromium in which it has its higher valence.

Example Sentences:

  • (1) They based their recommendation on survival results in a group of 23 patients with positive washings who were treated with intraperitoneal radioactive chromic phosphate.
  • (2) Two methods used for the electron microscopic detection of glycoproteins were applied to a variety of cell types in the rat; one involved successive treatment of sections with periodic acid, chromic acid, and silver methenamine; and the other, a brief treatment with a chromic acid-phosphotungstic acid mixture.
  • (3) We propose that a chromic stent can be used to assist in the repair of vas injured before mid-puberty.
  • (4) In one experiment where PEG and chromic oxide (Cr2O3) were fed simultaneously, PEG was excreted faster on average than Cr2O3.
  • (5) Colloidal [51Cr]chromic phosphate uptake is considerably increased by preincubation of P388 ascites leukemia cells with poly(DL-lysine).
  • (6) 10(-6) M. The chromic glycine complex was toxic above 10(-3) M for a 1-week exposure but was not observably toxic after a 1-h treatment.
  • (7) Chromic chloride coupling of antibody was preferred to biotinylation.
  • (8) Chromic oxide was given as a marker with the feeds, and flows of different combined sugars at the duodenum estimated from the values for sugars:marker at this site.
  • (9) Oesophageal tissue reaction to different suture materials (chromic catgut, silk, prolene and stainless steel wire) was analysed and compared in 45 cats with and without reflux oesophagitis.
  • (10) A fatal case of acute chromic acid ingestion is reported.
  • (11) Chromic oxide-impregnated paper was used as an external marker to estimate digestibilities at different sites along the gastrointestinal tract.
  • (12) Sperm reappeared in the ejaculate of all of the dogs in which Silastic had been utilized, but only 33% of the dogs with chromic stents had sperm appearing in the ejaculate.
  • (13) We have reviewed the results of 25 patients who had a resection interposition arthroplasty of the knee using chromicized fascia lata, with a mean follow-up of 22 years.
  • (14) The authors studied the influence of some suture materials (normal and chromic catgut, silk, polygalactic acid and polypropylene) on the process of healing of the small intestine in the rabbit.
  • (15) The increased intake of fat due to feeding tallow caused both increased fat metabolism and fat excretion as based on chromic oxide estimates of digestibility.
  • (16) In conclusion, the finding that adenomas and adenocarcinomas were observed in mice exposed to chromic acid mist suggests the need to give careful attention to the possibility of respiratory cancers in chromium electroplating workers.
  • (17) The possible effects of the apparent stimulation of the lymphoid system by chromic cigarette consumption is considered.
  • (18) The arthroplasty was performed with a minimum of bone resection using chromicized fascia lata (J-K membrane) as an interposition.
  • (19) The nature of the anomeric linkages, established by chromic acid oxidation, was confirmed by 1H-coupled 13C-n.m.r.
  • (20) After fixation during 6-10 days in 10% saline formaldehyde, 4 mm thick blocks of brain are treated with chromic anhydride and sodium potassium tartrate solution for 4 days.

Chromium


Definition:

  • (n.) A comparatively rare element occurring most abundantly in the mineral chromite. Atomic weight 52.5. Symbol Cr. When isolated it is a hard, brittle, grayish white metal, fusible with difficulty. Its chief commercial importance is for its compounds, as potassium chromate, lead chromate, etc., which are brilliantly colored and are used dyeing and calico printing. Called also chrome.

Example Sentences:

  • (1) Seventy-six patients with established atherosclerotic disease were treated daily with either 250 micrograms of chromium orally as chromium chloride or a placebo for a period of 7 to 16 months (mean, 11.1 months).
  • (2) Under standardized conditions, the relationship between antigen content and inhibition of chromium release was linear in a semilogarithmic plot, indicating that the antigen content can be determined from testing two dilutions of a given preparation.
  • (3) The contents of hexavalent chromium, Cr(VI), in grinding dust were undetectable.
  • (4) The subjects were exposed to manganese, iron , chromium compounds, thermal radiation, high temperature and noise.
  • (5) The chromium uptake by the cells in Ca-Mg-free phosphate-buffered solution (PBS(-] was higher than that in other culture media.
  • (6) Following pretreatment with the monoclonal antibodies anti-HNK-1 (anti-Leu-7) or anti-Leu-11b and complement, NK activity against K562 cells was assessed in 4-hr chromium release assays.
  • (7) Values for hair chromium concentration of nulliparous women and parous women who had just given birth to a child were determined by atomic absorption spectrophotometry.
  • (8) Recognition, evaluation and control of hazards were carried out in a typical case where chromium was the major pollutant.
  • (9) Chromium and its compounds have long been generally recognized as having potentially severe occupational health hazards.
  • (10) Kinetic analysis of residue and outflow curves of gamma-emitting indicators such as chromium-51-EDTA and iodide-131-thalamate from skeletal muscle gives the possibility to determine the extraction fraction and the plasma flow, and from these two values the capillary diffusion capacity can be calculated (Sejrsen 1970, preliminary report).
  • (11) Direct detection of chromium in milk, using only argon as purge gas, was inferior.
  • (12) A knee simulator was used to study the wear of carbon fiber reinforced UHMWPE (Poly Two) (Poly Two is a registered trademark of Zimmer, USA) tibial and patellar components against Ti-6A1-4V, titanium nitride (TiN)-coated Ti-6A1-4V, and cobalt-chromium-molybdenum femoral components.
  • (13) Results of the determinations indicated that protective leather gloves contained considerable content of chromium, and chromium-free machine oils and lubricants were polluted with chromium's minute quantities as the oils and lubrications were being used.
  • (14) In 139 persons occupationally exposed to compounds of chromium, formaldehyde and p-phenylenediamine lymphocytic transformation test (ltt) was performed to detect a delayed-type hypersensitivity.
  • (15) A method for preparation of an immune diagnosticum using human erythrocytes of 0 (I) blood group sensitized with hepatitis B surface antigen in the presence of chromium chloride followed by the addition of formalin solution, for detection of antibody to the hepatitis B surface antigen is described.
  • (16) The effects of low-chromium diets containing chromium in the lowest quartile of normal intake on glucose tolerance and related variables in 11 females and 6 male subjects were evaluated.
  • (17) At the same time chromium content was determined quantitatively by atomic absorption.
  • (18) The results of validation tests showed that both Cr(VI) and trivalent chromium, Cr(III), were stable in the collection medium and that samples may be stored for up to 100 days without appreciable loss of Cr(VI).
  • (19) Base metal alloys, principally made of nickel, chromium, and beryllium have gained widespread usage, especially in the United States, due to their lower cost and higher mechanical properties.
  • (20) The amounts of polyethylene and methylmethacrylate debris and the histological reactions in the tissues corresponded closely with those reported in earlier studies of total hip prostheses made of stainless steel or cobalt-chromium alloy.

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