| 释义 |
Definition of calcium oxide in English: calcium oxidenoun mass nounA white caustic alkaline solid, commonly produced in the form of quicklime. 氧化钙，生石灰 Chemical formula: CaO Example sentencesExamples - Common soda-lime glass contains about 12% calcium oxide, while high-melting aluminosilicate glass contains about 20% calcium oxide.
- Glass was first made from sand and sodium carbonate, found in dry lake beds around Alexandria, and later improved greatly by the addition of lime, calcium oxide.
- The analysis to these materials revealed that they contain mainly silica, alumina and calcium oxide, which they account for 89.57% of the total weight.
- By melting silica mixed with sodium hydroxide or calcium oxide one is able to interrupt the long chains of silicon-oxygen bonds to form more easily melted glasses.
- The process yields carbon dioxide, water, and hydrogen chloride gas, which can easily be removed by injecting powdered lime or by installing a calcium oxide filter.
- To create a limed soil, powdered calcium oxide was added to the soil mix at 1 • 5% by soil dry weight.
- The dissociation of calcium carbonate to calcium oxide and carbon dioxide at 25°C and atmospheric pressure provides an example; raising the temperature or lowering the pressure drives the reaction in the forward direction.
- Drywall replaced cedar lath - sometimes wrapped with chicken wire - and it was covered with cement plaster and had a finish coat of calcium oxide - termed ‘quicklime.’
- The surface quickly becomes dull, however, as calcium reacts with oxygen to form a coating of white or gray calcium oxide.
- Calcium carbide, made by reacting calcium oxide with carbon in the form of coke, is the starting material for the production of acetylene.
Definition of calcium oxide in US English: calcium oxidenoun A white caustic alkaline solid, commonly produced in the form of quicklime. 氧化钙，生石灰 Chemical formula: CaO Example sentencesExamples - The dissociation of calcium carbonate to calcium oxide and carbon dioxide at 25°C and atmospheric pressure provides an example; raising the temperature or lowering the pressure drives the reaction in the forward direction.
- The surface quickly becomes dull, however, as calcium reacts with oxygen to form a coating of white or gray calcium oxide.
- Drywall replaced cedar lath - sometimes wrapped with chicken wire - and it was covered with cement plaster and had a finish coat of calcium oxide - termed ‘quicklime.’
- Glass was first made from sand and sodium carbonate, found in dry lake beds around Alexandria, and later improved greatly by the addition of lime, calcium oxide.
- Calcium carbide, made by reacting calcium oxide with carbon in the form of coke, is the starting material for the production of acetylene.
- The process yields carbon dioxide, water, and hydrogen chloride gas, which can easily be removed by injecting powdered lime or by installing a calcium oxide filter.
- By melting silica mixed with sodium hydroxide or calcium oxide one is able to interrupt the long chains of silicon-oxygen bonds to form more easily melted glasses.
- To create a limed soil, powdered calcium oxide was added to the soil mix at 1 • 5% by soil dry weight.
- The analysis to these materials revealed that they contain mainly silica, alumina and calcium oxide, which they account for 89.57% of the total weight.
- Common soda-lime glass contains about 12% calcium oxide, while high-melting aluminosilicate glass contains about 20% calcium oxide.
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