Turmeric paper is a term used in chemistry to refer to paper that has been impregnated with turmeric for use in identifying alkaline substances. The spelling of turmeric paper is fairly straightforward, with four syllables: tur-mer-ic pa-per. In IPA phonetic transcription, it would be written as /ˈtɜː.mər.ɪk ˈpeɪ.pər/. The first syllable is pronounced with the "ur" sound as in "hurt", and the second syllable has a short "e" sound. The stress is on the first syllable, followed by an unstressed "ic" sound.
Turmeric paper refers to a specialized type of paper that has been treated or impregnated with turmeric powder or a solution of turmeric in a solvent. Turmeric, scientifically known as Curcuma longa, is a yellow-colored spice derived from the roots of the Curcuma plant. This vibrant yellow pigment, called curcumin, is what gives turmeric its characteristic color.
When turmeric is applied to paper, it imparts a yellow hue to the paper, making it useful for various applications. Turmeric paper is commonly used in chemistry experiments and research, specifically in qualitative analysis and chemical identification. It is particularly handy for identifying the presence of alkaloids, some organic compounds, and other chemicals in a substance.
The distinctive yellow color of turmeric paper reacts with certain chemical compounds, resulting in color changes ranging from yellow to reddish-brown, depending on the specific substance being tested. This visual alteration serves as an indicator and aids in identifying the presence or absence of chemical components in a particular sample.
Due to its affordability and simplicity, turmeric paper finds applications in various fields, such as pharmaceuticals, forensic sciences, and research laboratories. It offers a quick and convenient method for detecting specific chemical reactions or components within a substance.
Overall, turmeric paper serves as a versatile tool in chemistry, providing researchers and analysts with an easily accessible means of visually assessing chemical reactions and identifying the presence of particular compounds.
Paper stained yellow with a solution of turmeric, used as a test for free alkali, which changes its yellow to a brown.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "turmeric" originated from the Latin word "terra merita", which means "meritorious earth". Turmeric is a yellowish-orange spice derived from the root of the Curcuma longa plant, primarily grown in India and other parts of Asia. The term "turmeric" was first used in English in the 13th century.
The term "turmeric paper" refers to a piece of paper that has been treated with a solution of turmeric powder and alcohol. The paper is used for various purposes, such as indicating the presence of alkalis or detecting the acidity or pH of a substance. The etymology of "turmeric paper" simply combines the word "turmeric" with the term "paper" to describe the specific type of paper treated with turmeric solution.