(n.) One of a class of caustic bases, such as soda, potash, ammonia, and lithia, whose distinguishing peculiarities are solubility in alcohol and water, uniting with oils and fats to form soap, neutralizing and forming salts with acids, turning to brown several vegetable yellows, and changing reddened litmus to blue.
Example Sentences:
(1) Significant amounts of 35S-labeled material were lost during the alkali treatment.
(2) The results also suggest that both alkali metals most probably have been delivered to the suckling pups and some of their toxic effect was retarded.
(3) Rabbits eating Rabbit Chow excreted a very alkaline urine, but rats eating the same diet excreted much less alkali when expressed per kilogram of body weight.
(4) From these findings it is concluded that cardiac performance and carbohydrate metabolism are accelerated in alkali and depressed in acid perfusion, and that myocardial metabolism could be affected by pH not only secondary to the change of performance but also by itself.
(5) Electrophoresis, Sephadex chromatography, and ultrafiltration studies showed that the alkali-soluble, water-soluble cell wall antigen is comprised of lipid, polysaccharide, and protein and has a molecular weight range of 30,000 to 50,000.
(6) [Na+],[Cl-)and[alkali]were determined in the alkaline gastric juice samples (pH greater than 7.0).
(7) Plants placed in pure acid and alkali solutions were also able to neutralize the medium.
(8) TFP produced a more discrete block in the repair of alkali-labile lesions in DNA.
(9) Activation of GV by monochromatic 450-nm radiation causes two specific DNA changes in human P3 cells in culture as shown by alkaline elution techniques: single-strand breaks (i.e., alkali-labile sites plus frank strand scissions) and DNA-to-protein covalent bond crosslinks.
(10) Keratan sulphate was isolated from bovine intervertebral disc and bovine nasal septum after hydrolysis with proteinases and treatment with dilute alkali.
(11) It was necessary to avoid CsCl banding of procapsids in their preparation as this treatment altered both their pI and their sensitivity to alkali dissociation into 14S subunits.
(12) In these muscles, two kinds of mRNA for the cardiac myosin alkali light chain, identical with those in ventricular muscle, were expressed and their relative amount in each tissue was almost the same as that in ventricular muscle.
(13) The enzymes were detected and characterized by agarose gel electrophoresis of alkali-denatured digestion products.
(14) The alkali cations selectivity sequence induced by ETH1811 is Li+ (1) greater than Na+ (0.08) greater than K+ (0.02) greater than Cs+ (0.008).
(15) When the monomer was further dissociated into constituent subunits in strong alkali or at high concentrations of SDS, the CD spectrum disappeared almost completely, indicating loss of the asymmetric interactions of the chromophoric heme a with its immediate environments, consisting of the subunit assembly.
(16) Addition of alkali to the culture media results in decrease of cell GAD activity, whereas increase of enzyme level occurs only in cells growing in unbuffered media.
(17) Chain breaks as measured in alkali were also measured and found to be enhanced by the dye; the ratio of breaks per iodine loss was 0.9.
(18) Alkali hydrolysates of elastins contained a radioactive peak that was eluted between proline and leucine.
(19) Under limiting concentration conditions, BLM and NCS induce alkali-labile sites in DNA without a subsequent cleavage of the chain.
(20) Hydrolysis with mild alkali yields anhydroretinol, as it does for synthetic retinyl phosphate, with absorption maxima at 388, 368, and 346 nm.
Potash
Definition:
(n.) The hydroxide of potassium hydrate, a hard white brittle substance, KOH, having strong caustic and alkaline properties; -- hence called also caustic potash.
(n.) The impure potassium carbonate obtained by leaching wood ashes, either as a strong solution (lye), or as a white crystalline (pearlash).
Example Sentences:
(1) The purpose of this study was to determine the clinical, epidemiological and evolutive characteristics of interdigital and plantar intertrigo of the feet among people working in a coking plant, a potash mine and a motorcar factory.
(2) Fast "inactivation" of the potassium current is seen with patch pipettes fabricated from soft glass (soda glass or potash lead glass), and is probably caused by block of the potassium channels by di- or multivalent cations released from the glass.
(3) The prevalence of pleural calcification and pneumoconiosis in talc workers with 15 or more years of employment was higher than in potash miners.
(4) When rotary (drum) filters are used for phase splitting and rotary driers for drying the moist potash fertilizers the emission rate of chlorohydrogen lies between 300 and 1,000 mg m-3.
(5) The Palestinian economy could earn $918m (£571m), 9% of 2011 GDP, if minerals such as potash and bromine were harvested from the Dead Sea.
(6) The GCA RDM 101-1 has been evaluated using aerosols of coal, Arizona road dust, silica, potash, and rock (copper ore) particles.
(7) Symptoms were only slightly more prevalent in talc workers when compared to potash miners.
(8) From January 1986 through 1990, 70 children (42 boys, 28 girls) with esophageal stricture resulting from ingestion of caustic potash underwent simultaneous esophagectomy and colonic interposition utilizing the transhiatal esophageal approach.
(9) Danakali’s managing director Paul Donaldson said , “The Danakil region of East Africa is recognised as an emerging potash [potassium salts] province, and to date over 10bn tonnes of potassium bearing salts have been identified.” Online intelligence magazine Geeska Afrika explained : “Eritrea has many benefits it can offer potential investors.
(10) The mine, which sits on protected moorland overlooking Whitby and Robin Hood’s Bay, aims to produce up to 20m tonnes a year of a potassium-rich mineral called polyhalite, a type of potash fertiliser described by Sirius as a “fertiliser of the future”.
(11) On the basis of investigations in the potash mining industry of GDR were formulated the starting conditions for experiments in a simulation chamber.
(12) Three commonly used fertilizers, urea, single superphosphate and muriate of potash, induced chromosome and chromatid breaks in the metaphase chromosomes of bone marrow cells of fertilizer-fed Swiss albino mice, Mus musculus.
(13) A small corner of one of Britain’s most stunning national parks will be dug up to make way for a £1.7bn potash mine after locals were wooed with promises of more than 1,000 jobs – and the idea of restoring the proud mining heritage of the north-east of England.
(14) Cells from hardened formalin-fixed human hearts were isolated with potash lye.
(15) Two examples are a potash mine in the North York Moors National Park, which is expected to create up to 2,000 jobs, and the new Hitachi plant in Newton Aycliffe constructing superfast trains, which aims to bring in 730 workers.
(16) The dispute followed the collapse this month of a Russia-Belarus sales cartel that controlled two-fifths of the $20bn global market for potash, an ingredient used in mineral fertilisers.
(17) The method was compared with Beohringer's method (n = 50) using hydrolysis of alcoholic potash.
(18) Derek Quinn, who has just retired after 34 years at North Yorkshire’s existing potash mine, in nearby Boulby, said: “From what I understand, I think it will be excellent for the area.
(19) After a four-year planning wrangle, members of the North York Moors National Park Authority were cheered on Tuesday when they narrowly gave the green light to UK firm Sirius Minerals – via its subsidiary York Potash – to dig a mile-deep shaft under heavily protected moorland overlooking Whitby and Robin Hood’s Bay.
(20) The cutaneous sensitivity to benzalkonium chloride, sodium lauryl sulphate and potash soap was determined in 54 monozygotic and 46 dizygotic twin pairs.