📚 noun • entry_id 23746
oxalic acid
Meanings (ES + gloss)
ácido oxálico
A colourless, crystalline dicarboxylic acid, (COOH)₂, found in rhubarb, spinach and other plants, often as crystals of the calcium salt.
If not sufficiently purified, a little hydrochloric or oxalic acid, or caustic potash may be put in the water, according as the stains are from grease or from ink.
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