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Updated: June 11, 2025
For this purpose the following formula, prepared by Rotch, of modified cow's milk is considered the best: Milk 2 ounces Cream 3 ounces Water 10 drams Milk-sugar 6 3/4 drams Lime-water 1 ounce To make one pint of the mixture for use in the twenty-four hours, take the milk and cream as soon as it comes in the morning, and mix as above directed.
"It's ruinous, but I suppose you must have it your way." Myra Nell shook her head gloomily. "No not if you are going to feel like that. Of course, if she were here she could cut off my hair when I take to my bed; she could bathe my face with lime-water when my beauty goes; she could listen to my ravings and understand, for she is a woman. But no, I'm not worth it.
Purify melted mutton tallow by throwing in powdered quicklime, then add 2 parts of wax to 1 of tallow. A most beautiful article of candle, resembling wax, will be produced by the mixture. Dip the wicks in lime-water and saltpetre on making.
Hold a long glass tube over a candle, so that the stream of hot air from it may go up through the tube. Hold a jar over the end of the tube to collect some of the stream of hot air. Put some lime-water, which looks quite clear, into the jar; stop the jar, and shake it up. The lime-water, which was quite clear before, turns milky.
Here, then, is the carbon obtained from the carbonic acid, as a common black substance; so that you have the entire proof of the nature of carbonic acid as consisting of carbon and oxygen. And now, I may tell you, that whenever carbon burns under common circumstances, it produces carbonic acid. Suppose I take this piece of wood, and put it into a bottle with lime-water.
Let them remain one night to cool; then warm them a little to loosen them, draw them out, and when they are hard, put them in a box in a dry and cool place. To make dipped candles, cut the wicks of the right length, double them over rods, and twist them. They should first be dipped in lime-water or vinegar, and dried.
When the water has been violently agitated for fifteen or twenty minutes in the battery, by taking a little of the liquor up in a plate it will appear full of small grain or curdled; then you are to let in a quantity of lime-water kept in a vat for the purpose, to augment and precipitate the faeculae, still continuing to stir and beat vehemently the indigo water, till it becomes of a strong purple colour, and the grain hardly perceptible.
Observe, that will not happen with air merely. Here is a bottle filled with air; and if I put a little lime-water into it, neither the oxygen nor the nitrogen, nor anything else that is in that quantity of air, will make any change in the lime-water.
Hence clear lime-water forms a good test for the presence of bicarbonates of lime or iron in a water. But water may be hard from the presence of other salts, other lime salts. For example, certain parts of the earth contain a great deal of gypsum, or natural sulphate of lime, and this is soluble to some extent in water.
By this liming process, also, the iron of the water dissolved likewise in ferruginous streams, etc., by carbonic acid, would be precipitated. To show this deposition I will now add some clear lime-water to the solution I made of chalk with the carbonic acid of my breath, and a precipitate is at once formed, all the lime and carbonic acid together depositing as insoluble chalk.
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