JPH01245093A - Fuel generating colored flame - Google Patents

Abstract

PURPOSE:To easily obtain an illumination flame colored in red, blue or yellow color, etc., by dissolving a specific small amount of a metal compound acting as a flame-colorant in a lower alcohol and burning the alcohol with an alcohol lamp having a lamp-wick. CONSTITUTION:A metal compound acting as a flame-colorant [e.g. cupric chloride (bluish green) or sodium chloride (yellow)] is dissolved in an amount of 0.01-1wt.% in a lower alcohol such as methanol or ethanol. The alcohol is burnt with an alcohol lamp having a lamp-wick.

Description

[Detailed Description of the Invention] A. Field of Industrial Application The purpose of the present invention is to easily color the flames of lighting placed on a dining table in red, blue, yellow, etc. in order to add splendor to a dining table at a banquet. do.

Conventional Techniques Although lighting with candles has often been done in the past to add elegance to the dining table, it is also necessary to color the flames to create a gorgeous atmosphere. However, it is nearly impossible to dissolve the colorant in the candle, and even if colorant powder is mixed into the wax, when the melted wax rises due to capillary action, the colorant will precipitate on the top of the wick. The flame does not last because it prevents the wax from being sucked up.Furthermore, in the flame of a candle, the wax decomposes and precipitates fine particulate carbon, which is heated and produces a yellow glow, so the color of the colorant does not appear clearly. The same applies to oil lamps.

You can easily achieve your goal by using an electrolyte and covering the light bulb with colored glass, but it is cumbersome as it requires wiring.

C. Problems to be Solved by the Invention The present invention aims to stop the use of fuel that generates brilliance from the flame, and when used in a combustor that uses a lamp wick, the problem is that the fuel suction field due to the capillary action of the lamp wick is prevented. The objective was to determine the optimal concentration of colorant so as not to interfere with the process.

2. Means for Solving the Problems The present invention selects methanol, ethanol, or a mixture thereof as a fuel that does not generate sparkle in the flame, and uses lithium chloride as a coloring agent that generates a red flame and is soluble in lower alcohols. Or lithium hydroxide. Strontium and rubidium are substances that color flames red, but none of these compounds were found to be soluble in lower alcohols. A coloring agent that colors the flame blue-green is cupric chloride. It is well known that copper compounds color flames blue-green, but this coloration requires trace amounts of chlorine. The reason why the flame turns blue-green when touched by a copper piece is due to the salt in the sweat secreted from the fingertips.

The present inventor discovered cupric chloride as a substance that contains copper and chlorine and is well soluble in lower alcohols. Compounds of sodium are most effective in coloring flames yellow, but very few sodium compounds dissolve well in lower alcohols, although common salt does.

As will be described later, the required concentration of the coloring agent in alcohol is very small, so common salt can be used as the yellow coloring agent.

Various methods can be considered to burn lower alcohols, but an alcohol lamp using a wick, which is used by doctors and chemical laboratories, is simple and inexpensive. If a wick is used, as mentioned above, the colorant will remain on the top of the wick and prevent continuous uptake of fuel. Therefore, it was decided to limit the concentration of colorant in the alcohol. Since the amount of colorant required to color the flame is vll, there must be a concentration that will color the flame without clogging the wick.

E. By varying the concentration of colorant in the working alcohol and measuring the time that combustion continues without shrinking the flame, a colorant concentration that is almost practical was determined.

Example Concentration of colorant in alcohol, duration of combustion without flame shrinkage.

1% (weight) Approximately 30 minutes 0.1% (weight Ml) Approximately 1 hour 0.01% (weight I) 2 hours or more Effects of the invention: This easily and sustainably colors the flame of an alcohol lamp. It became possible.

Claims (1)

[Claims] In order to color the flame of a lower alcohol such as methanol or ethanol, a method of dissolving 0.01% to 1% by weight of a metal compound as a flame coloring agent in the alcohol and burning this with an alcohol lamp using a wick. .