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Перевод: alkalinity

[существительное]
щелочность

Тезаурус:

1. For British lakes with limited alkalinity, critical loads of sulphur are put at 3-;6 kg/S/ha, a level exceeded over most of the country.
2. Major variations in formulation only occur in levels of alkalinity to deal with differing soil load expectations, the proportion and type of sequestrants, to balance the alkalinity and to cope with water hardness and the inclusion of minor ingredients.
3. The use of ozone as a reactant in absorption systems is relatively new but one increasing in popularity as it reportedly requires lower dose rates and reaction times, is less susceptible to changes in water temperature and acidity or alkalinity and produces no harmful by-products.
4. Even such an elementary requirement as the accurate control of acidity and the alkalinity was difficult until, in about 1912, Srensen devised the scale of measurement known as pH, and pioneered the use of solutions which "buffered" changes of pH.
5. Total alkalinity is often modified, downwards, by the use of less aggressive alkalis, such as sodium carbonate or sodium metasilicate, and, not infrequently, especially in dishwashing formulations, chlorine release agents such as di and tri chloroisocyanuric acid salts.
6. That is a scale of acidity and alkalinity based on 14 times the logarithm of the ratio of disassociated hydrogen ions in an aqueous solution measured in grams per litre.
7. The sensor measures alkalinity and when the level falls below a pre-set value it activates a pump that delivers product from a bulk container to the tank in sufficient quantity to make up solution to the desired strength.
8. Permanently acid lakes have a pH below 5.6 and alkalinity close to zero because calcium and magnesium have been washed from the system.
9. Acidity is reckoned on the pH scale of acidity and alkalinity such that distilled water scores 7 at the neutral extreme and battery acid scores 1.
10. The high alkalinity of working concentrations ensures adequate disinfection against brewing yeasts.
11. For the most delicate lake systems of Sweden and Norway even a 100 per cent reduction in deposition is not expected to return them to life; 3-;7 per cent of the lakes in Norway's 1,000 lake study are in this super-sensitive category with a "zero alkalinity" at 100 per cent reduction, and will require liming.
12. Like human skin, they have a natural balance between acidity and alkalinity which is measured on the pH scale (from 0, near battery acid, to 14, equivalent to caustic soda).