Dr Richardson says of this latter it is not so quick in its action as the methylene chloride, but that it is safer.
Bichloride of methylene has been used for ansthetic purposes.
Ehrlich has used a double stain with neutral red and methylene blue.
If hydrogen sulphide is passed through a solution of methylene blue the dye is very quickly reduced and becomes colorless.
The stains of most importance are carmine, methylene blue, hmatoxylin, gold chloride and Bismarck brown.
This reduction is brought about under conditions similar to those necessary for the reduction of dyes, such as methylene blue.
By the action of nitrous acid the blue is converted into a green known as “methylene green.”
Chloride of methylene is a colourless mobile fluid, having a smell like chloroform, and a burning taste.
methylene blue can be reduced by the H2 and the hypophosphite oxidized.
There is no reduction if the milk, methylene blue, and aldehyde are agitated with air.
methylene meth·yl·ene (měth'ə-lēn')
n.
A bivalent hydrocarbon radical, CH2, that is a component of unsaturated hydrocarbons and is derived from methane by the removal of two hydrogen atoms.
