Alizarin
Definition
A solid organic substance, crystallized in red-orange needles, insoluble in water, initially extracted from the madder root (Rubia tinctorum) and later obtained synthetically from anthracene. It is widely used in the textile industry as a highly stable dye for coloring in intense shades of red, purple, or black, as well as in medicine or microscopy as a chemical indicator.
Bilingual Equivalents
- Alizarin
- Alizarine
Grammatical & Source Details
| Inflection Type | Feminine noun, regular structural plural variations with standard scientific suffixes. |
| Formation | Neologism borrowed from French (alizarine), based on the commercial root of Arabic origin 'alizari'. |
| Spelling / Pronunciation | [a.li.za.ˈri.nə] |
| Source | Encyclopedia of Organic Compounds and Modern Dye Chemistry |
Contextual Usage Examples
RO: Laboratorul a sintetizat o cantitate pură de alizarină pentru a testa noul tip de fibre sintetice.
EN: The laboratory synthesized a pure amount of alizarin to test the new type of synthetic fibers.
RO: Vopsirea lânii cu alizarină oferă o rezistență remarcabilă la acțiunea razelor solare.
EN: Dyeing wool with alizarin provides remarkable resistance to the action of sunlight.
RO: În manualul de histologie se recomandă folosirea de alizarină pentru colorarea structurilor osoase.
EN: In the histology manual, it is recommended to use alizarin for staining bone structures.
Idioms & Phrases
Roșu de alizarină / Alizarin red
RO: Pigment specific utilizat în pictură și colorare histologică pentru marcarea calciului.
EN: A specific pigment used in painting and histological staining for marking calcium.
Colorant pe bază de alizarină / Alizarin-based dye
RO: Compus industrial capabil să formeze lacuri insolubile cu oxizii metalici pe țesături.
EN: An industrial compound capable of forming insoluble lakes with metallic oxides on fabrics.
Sinteza alizarinei / Synthesis of alizarin
RO: Proces istoric realizat în 1868 care a marcat prima obținere artificială a unui colorant natural.
EN: A historical process achieved in 1868 that marked the first artificial production of a natural dye.
Latest Contextual News
No recent news found for this topic.