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单词 sulphate
释义
sulphatesul‧phate British English, sulfate American English /ˈsʌlfeɪt/ noun [countable, uncountable] Examples
EXAMPLES FROM THE CORPUS
  • During the bacterial reduction of one mole of sulphate, four moles of hydrogen are consumed.
  • For many years ferrous sulphate was used as a supplement.
  • In marine sediments and faeces, sulphate reducing bacteria outcompete methanogenic bacteria because of their higher affinity for such substrates.
  • Sulphur bacteria may be present below the anoxic zone, reducing sulphate ions and liberating hydrogen sulphide.
  • The calcium sulphate was probably concentrated by evaporation of shallow lakes, though wind-borne gypsum dust may have contributed in places.
  • Thus, the amount of sulphate given in this study can be reached by dietary means in a proportion of people.
  • We conclude that methanogenesis is regulated by dietary sulphate if sulphate reducing bacteria are present.
word sets
WORD SETS
acetate, nounacid, nounacidic, adjectiveacidify, verbactive, adjectiveadditive, nounagent, nounalchemy, nounalcohol, nounalkali, nounalkaline, adjectiveamalgam, nounantioxidant, noun-ate, suffixatomic number, nounbase, nounbauxite, nounbeaker, nounbenzene, nounbiochemistry, nounbitumen, nounbleach, nounbond, nounbonding, nouncalcify, verbcarbohydrate, nouncarbonate, nouncarbon dioxide, nouncarbonize, verbcatalyst, nouncaustic, adjectivechain reaction, nounchemical, nounchemical, adjectivechemical reaction, nounchemist, nounchemistry, nounchlorinate, verbcitric acid, nouncombustion, nounconcentration, nouncondense, verbcontaminant, nouncontaminate, verbcontaminated, adjectivecorrode, verbcorrosion, nouncorrosive, adjectivecrucible, nouncrystal, nouncrystallize, verbcyanide, nounDDT, noundecay, verbdecay, noundecompose, verbdegrade, verbderive, verbdetoxification, noundextrose, noundioxin, noundispersion, noundissolve, verbdistill, verbeffervesce, verbeffervescent, adjectiveelectrolysis, nounelectrolyte, nounelectroplate, verbemulsify, verbemulsion, nounenzyme, nounexpand, verbfatty acid, nounferment, verbferment, nounflashback, nounflask, nounformaldehyde, nounformula, nounfructose, nounfungicide, nounfuse, verbgas, noungaseous, adjectiveglucose, noungranular, adjectivegraphite, nounhallucinogen, nounhelium, nounherbicide, nounhydrate, nouninert, adjectiveinsoluble, adjectiveinsulin, nounion, nounionize, verblactic acid, nounlimescale, nounlitmus, nounlitmus paper, nounlitmus test, nounmethane, nounmixture, nounmolecule, nounneon, nounnerve gas, nounneutralize, verbneutron, nounnitric acid, nounnucleic acid, nounnucleus, nounnutrient, nounorganic chemistry, nounosmosis, nounoxidize, verboxyacetylene, nounoxygenate, verbozone, nounpart, nounpectin, nounpesticide, nounpestle, nounpetrochemical, nounpH, nounphotosynthesis, nounplasma, nounpolyunsaturated, adjectivepotash, nounprecipitate, verbprecipitate, nounprecipitation, nounproduct, nounprussic acid, nounquicklime, nounradioactive, adjectiveradioactivity, nounradiology, nounreact, verbreaction, nounreactive, adjectivereagent, nounresidue, nounretort, nounriboflavin, nounsalt, nounsaltpetre, nounsaturate, verbsaturated, adjectivesaturation, nounsaturation point, nounsemiconductor, nounsoft, adjectivesolid, nounsolution, nounsolvent, nounstability, nounstabilizer, nounstable, adjectivestarch, nounsteam, nounsucrose, nounsulphate, nounsulphide, nounsulphur, nounsulphur dioxide, nounsulphuric acid, nounsulphurous, adjectivesurface tension, nounsuspension, nounsynthesize, verbsynthetic, adjectivetannin, nountartaric acid, nounTNT, noununstable, adjectivevalence, nounvitamin, nounvolatile, adjectivevulcanize, verbwater softener, nounwater-soluble, adjectivewater vapour, nounwetting agent, noun
Collocations
COLLOCATIONS FROM THE CORPUSNOUN
· Mixed with water, aluminium sulphate becomes increasingly acid.· Most of the aluminium contamination is due to aluminium sulphate added to water to remove cloudiness.· The low-level, continuous exposure arising from aluminium sulphate in water purification is very worrying.
· Anhydrite was used in the production of ammonium sulphate and cement.· In this assay, bacteria with higher surface hydrophobicity agglutinated at lower ammonium sulphate concentrations.· This can be avoided by the addition of ammonium sulphate.
· In man, the principal routes are via methanogenesis or dissimilatory sulphate reduction.· In three of the six subjects, sulphate reduction rates were low and did not show any change throughout the study.· It is clear from studies in man that either methanogenesis or dissimilatory sulphate reduction predominate in some populations.· This is probably not enough to allow significant dissimilatory sulphate reduction.
· Pulp, paper, viscose and fine chemical industries generate huge volumes of sodium sulphate byproduct.· From day 11 to day 20, 15 mmol sodium sulphate was added to the diet.
a salt formed from sulphuric acid:  copper sulphate
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