Formaldehyde is the other gas which is commonly used for disinfecting the air of a room.
Strehlenert has proposed the addition of formaldehyde , but this is without result .
Formaldehyde is usually sold in solution of about forty per cent.
Formaldehyde has been used very extensively for this purpose.
If formaldehyde is present, there will be a violet coloration.
A green coloration is produced when formaldehyde is present.
If formaldehyde is present, the liquid will be colored violet.
Formaldehyde used in liquid form is an excellent disinfectant.
But you ought to have seen him go for the bread and tincture of formaldehyde.
Her talk these days was of formaldehyde, benzoate of soda, and salicylic acid.