- acid alizarine blue-black
- Химия: кислотный ализарин сине-чёрный
Универсальный англо-русский словарь. Академик.ру. 2011.
Универсальный англо-русский словарь. Академик.ру. 2011.
Iron gall ink — Oak galls and iron(II) sulfate, ingredients of iron gall ink Iron gall ink (also known as iron gall nut ink or oak gall ink) is a purple black or brown black ink made from iron salts and tannic acids from vegetable sources. It was the st … Wikipedia