| 释义 |
Definition of sulphate in English: sulphate(also sulfate) nounˈsʌlfeɪt Chemistry A salt or ester of sulphuric acid, containing the anion SO₄²⁻ or the divalent group —OSO₂O—. Example sentencesExamples - Comprised primarily of soot, sulfates, nitrates, fly ash, and organic particles, aerosols both absorb significant amounts of light and scatter sunlight back into the atmosphere.
- The Podolia ash beds consist largely of clay minerals accompanied by a variety of primary volcanogenic crystals and secondary sulphides, sulphates, oxides, carbonates, and silicates.
- Leachate typically contains organic compounds together with metal chlorides and sulphates, and has a high chemical oxygen demand due to the presence of reducing species.
- It occurs in all kinds of minerals, such as oxides, carbonates, nitrates, sulfates, and phosphates.
- Black smokers, debouching fluids at 350°C into the overlying sea water sit atop a mound of hydrothermal minerals, including sulphides, sulphates, oxides, and silicates.
- Herbicides include a wide range of compounds, such as common salt, sulfates, and ammonium and potassium salts.
- They have a somewhat chalky flavor, which is indicative of sulfates, but rules out regular sodium chloride.
- Oxygen levels also had significant effects on ocean chemistry: increasing continental weathering rates and providing sulfates and nitrates as nutrients.
- Biodiesel reduces emissions of unburned hydrocarbons, carbon monoxide, sulfates, polycyclic aromatic hydrocarbons, nitrated polycyclic aromatic hydrocarbons and particulates.
- Common among these are bicarbonates, calcium, chlorides, fluorides, magnesium and sulfates - all of which can cause salt stress if found in excessive amounts.
- The technique can identify iron-bearing phases (such as oxides, silicates, sulfides, sulfates, and carbonates), as well as the amount of iron in each phase and the presence of iron in various oxidation states.
- Organic sulfates are esters and are formed by reacting an alcohol with cold sulfuric acid or by the reaction of sulfuric acid with a double bond in an alkene.
- Tiny particles of soot or chemical compounds like sulphates reflect sunlight and they also promote the formation of bigger, longer lasting clouds.
- The magnesium corrosion control rod present in many hot water heaters can chemically reduce naturally occurring sulfates to hydrogen sulfide.
- These minerals can be supplemented in the diet as inorganic oxides, sulfates, or organic chelates with the mineral bound to an amino acid or peptide complex.
- The respirable portion of particulates can include acid condensates, sulfates, nitrates, and organic compounds.
- Other contaminants include arsenic, chromium, cyanides, phenols, sulphates, gases and ‘combustible materials’.
- They are immediately downwind of coal-burning electric plants in the Ohio and Tennessee valleys, and their high elevation makes them extremely susceptible to sulfates and nitrates moving through the atmosphere.
- The oils are first reacted with sulfuric acid, which converts them into sulfates.
- Inorganic anions such as chloride, nitrate and sulphate can be separated in about five minutes.
Origin Late 18th century: from French sulfate, from Latin sulphur (see sulphur). |