an instrument for determining the purity or strength of acids,founded on the principle that the strength of any sample of acid is proportionate to the quantity of carbonanic acid gas which it disengage from a carbonanate of soda or potash.
Acid bath:
An acid solution for cleansing the surfaces of gold , silver ,copper ,brass and zinc objects,preperatory to electroplating; acid pickle.
Acid depolarized:
An acid ,such as nitric acid , sometimes introduced into a primary cell to prevent polarization.
Acidity:
A freequent property of acids , through not invariably a characteristic; moreover , many substances which are not acids within the usual defination are sour. Paper stained wth blue litmus is common test for acidity , an acid liquid giving it a reddish tint. Alkalies or alkaline substances restore the blue colour.
Acid process:
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