| 1. | Aerogels by themselves are hydrophilic, but chemical treatment can make them hydrophobic.
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| 2. | In addition, public acceptance of a new, widespread chemical treatment was lacking.
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| 3. | Either heating or some combination of chemical treatments and filtering is necessary.
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| 4. | Chemical treatment is problematic, since you probably use the rosemary in cooking.
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| 5. | More ecologically-friendly means are being tested as an alternative to chemical treatments.
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| 6. | There was no chemical treatment to further improve the taste or appearance.
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| 7. | The lake also had nuisance aquatic weed growth that has required chemical treatment.
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| 8. | Some chemical treatment techniques include ozone and oxygen gas injection, chemical precipitation, nanomaterials.
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| 9. | The second stage is the actual tawing and other chemical treatment.
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| 10. | Chemical treatments are often used in enclosed storage areas with little air circulation.
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