For coloring these candles only dye stuffs soluble in oil can be employed. Blue: 23-24 lavender blue, pale or dark, 100-120 parts per 5,000 parts of ceresine. Violet: 26 fast violet R, 150 parts per 5,000 parts of ceresine. Silver gray: 29 silver gray, 150 parts per 5,000 parts of ceresine. Yellow and orange: 30 wax yellow, medium, 200 parts per 5,000 parts of ceresine; 61 old gold, 200 parts per 5,000 parts of ceresine. Pink and red: 27 peach-pink, or 29 chamois, about 100 parts per 5,000 parts of ceresine. Green: 16-17 brilliant green, 33 May green, 41 May green, 200-250 parts per 5,000 parts of ceresine. The above-named colors should be ground in oil and the ceresine tinted with them afterwards.

Manufacture of Composite Paraffine Candles

Three parts of hydroxy-stearic acid are dissolved in 1 part of a suitable solvent (e. g., stearic acid), and the solution is mixed with paraffine wax to form a stock for the manufacture of composite candles.

Transparent Candles

The following are two recipes given in a German patent specification. The figures denote parts by weight:

I

Paraffine wax, 70; stearine, 15; petroleum, 15.

II

Paraffine wax, 90; stearine, 5; petroleum, 5. Recipe I of course gives candles more transparent than does recipe II. The 15 per cent may be regarded as the extreme limit consistent with proper solidity of the candles.

To Prevent the Trickling of Burning Candles

Dip the candles in the following mixture:

Magnesium sulphate 15 parts

Dextrin............ 15 parts

Water............. 100 parts

The solution dries quickly and does not affect the burning of the candle.