An etchant consisting of a few per cent of concentrated nitric acid in ethanol or methanol.
| 单词 | θ216768 |
| 释义 | society > occupation and work > materials > derived or manufactured material > materials used in metallurgical processes > [noun] > substance used for testing > types of (2) nital1925 An etchant consisting of a few per cent of concentrated nitric acid in ethanol or methanol. picral1928 An etchant consisting of a solution of about 2 to 5 per cent of picric acid in ethyl alcohol. |
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