noun
COLLOCATIONS FROM OTHER ENTRIES
nitrous oxide
COLLOCATIONS FROM CORPUS
■ ADJECTIVE
ferric
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That is many times smaller than crystals of conventional ferric oxide , and about one ten-thousandth the diameter of a human hair.
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In nephrite it occurs exclusively as ferrous and in jadeite as ferric oxide .
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Ferrite, the low-cost non-cobalt material made of ferric oxide and barium or strontium carbonate, was launched in the 1950s.
iron
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The addition of iron oxide produced a darker brown colour in the glaze under reducing conditions.
nitric
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Oxyhaemoglobin, a scavenger of nitric oxide , also abolished the relaxations but methaemoglobin had no such effect.
nitrous
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For instance, he taught me how to use nitrous oxide for its effect in combating physical pain.
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A can of whipped cream uses nitrous oxide , an anesthetic, as a propellant.
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Increasing atmospheric levels of nitrous oxide currently stand at about eight percent above pre-industrial levels.
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Other reactive trace gases such as nitrous oxide and methyl iodide also remain at elevated and aberrant levels.
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Once produced, nitrous oxide remains in the atmosphere for about 150 years.
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It would also reduce sulphur dioxide and nitrous oxide emissions, which cause acid rain, by 42,000 tonnes.
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The cocktail of greenhouse gases includes chlorofluorocarbons, methane, nitrous oxide and carbon dioxide.
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The researchers have found nylon production to be responsible for up to 10 percent of the increase in nitrous oxide .
■ NOUN
calcium
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Some glazes contain elevated magnesia which increases their durability; this was certainly necessary given the low calcium oxide levels.
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Another very unusual feature of these glasses is that they contain very low calcium oxide levels-c. 1 %.
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When calcium carbonate is heated it decomposes into calcium oxide and carbon dioxide.
emission
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To avoid further damage to sensitive ecosystems, sulphur and nitrogen oxide emissions must be cut by 90 percent.
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Nitrogen oxide emissions from vehicles are rising every year because of the huge growth in the number of cars.
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Both countries would also limit nitrogen oxide emissions through stricter controls on motor vehicles.
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Nitrogen oxide Forty percent of nitrogen oxide emissions in Britain come from vehicles.
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It would also reduce sulphur dioxide and nitrous oxide emissions , which cause acid rain, by 42,000 tonnes.
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The Government gave way in 1988, then went back on deal to cut nitrous oxide emissions by 30 percent.
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A model system relates energy consumption to emissions of sulphur and nitrogen oxide emissions.
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Traffic now accounts for 51 percent of total nitrogen oxide emissions , compared to 31 percent in 1980.
lead
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When low levels of lead oxide are present there can be a problem of dissolving the copper in the glass.
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With a few exceptions most of the translucent glasses contain below 1 % lead oxide .
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The white glass also contained 12.0010 of lead oxide: this would have made it softer and therefore easier to cut.
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The sulphur was burned off, thus producing a lead oxide which then had to be reduced leaving behind the pure lead.
level
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Some glazes contain elevated magnesia which increases their durability; this was certainly necessary given the low calcium oxide levels .
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They contain between 0.6 % and 0.8 % magnesia and contain low potassium oxide levels .
manganese
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Some scientists are concerned about long-term exposure to low levels of manganese oxides from car exhaust fumes.
metal
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How can we tell whether carbon or another metal will reduce a metal oxide ?
nitrogen
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To avoid further damage to sensitive ecosystems, sulphur and nitrogen oxide emissions must be cut by 90 percent.
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First, the nitrogen oxides are toxic to animals.
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Both countries would also limit nitrogen oxide emissions through stricter controls on motor vehicles.
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Global warming occurs when carbon dioxide and some other gases, such as methane and nitrogen oxides , accumulate in the atmosphere.
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Reduction of nitrogen oxides from cars will need more expensive vehicles - or mean less use.
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The nitrogen oxides are almost as effective as dust at screening out sunlight.
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Nitrogen oxide Forty percent of nitrogen oxide emissions in Britain come from vehicles.
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The situation is exacerbated by unusually low levels of nitrogen oxides , which inhibit ozone destruction.
tin
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The waste contains tin oxide , in proportions too minute for last century's miners to recover.
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Flotation is important in separating particles of tin oxide less than about 40 micrometres in diameter.
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The chemicals have to be carefully selected so that they affect only the tin oxide and nothing else.
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Into these flowed more molten rock, carrying minerals such as tin oxide .
■ VERB
contain
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The waste contains tin oxide , in proportions too minute for last century's miners to recover.
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Unlike conventional glass, it contains no silicon oxide .
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The white glass also contained 12.0010 of lead oxide: this would have made it softer and therefore easier to cut.
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They contain between 0.6 % and 0.8 % magnesia and contain low potassium oxide levels.
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Another very unusual feature of these glasses is that they contain very low calcium oxide levels-c. 1 %.
reduce
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Thus, at 1000 K magnesium will reduce aluminium oxide , whereas at 2000 K aluminium reduces magnesium oxide.
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The gas was to reduce iron oxide to make iron which could later be fed to a steel works.
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How can we tell whether carbon or another metal will reduce a metal oxide ?
EXAMPLES FROM CORPUS
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At a given temperature, the oxide with the higher line will be the one that is reduced.
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Both countries would also limit nitrogen oxide emissions through stricter controls on motor vehicles.
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However, the oxide mineral content of the rocks is generally low, at 5-10 percent.
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It would also reduce sulphur dioxide and nitrous oxide emissions, which cause acid rain, by 42,000 tonnes.
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Moreover, a strong presence of ferrous oxide in the walls gives them a red color.
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Nitrous oxide is also responsible for about six percent of the greenhouse effect.
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Reduction of nitrogen oxides from cars will need more expensive vehicles - or mean less use.
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Traffic now accounts for 51 percent of total nitrogen oxide emissions, compared to 31 percent in 1980.