KSIĄŻKI POWIĄZANE ZE SŁOWEM «TURMERIC PAPER»
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1
Turmeric: The genus Curcuma
Turmeric paper, prepared by soaking unglazed white paper in turmeric tincture
and then dried, serves as a reagent for test for alkalinity. Turmeric paper is also
used as a test for boric acid (Yoshida et al., 1989). Colorimetric method using ...
P. N. Ravindran, K. Nirmal Babu, Kandaswamy Sivaraman, 2007
2
Experimental Researches in Electricity: Series 1-14 [Phil. ...
A piece of turmeric paper a fig. 50, and a piece of litmus paper b, were dipped in
solution of sulphate of soda, put together so as to form one moist pointed
conductor, and supported on wax between two needle points, one p connected
by a ...
3
Analytical Methods for a Textile Laboratory
Boric acid forms a red-brown color when dried on turmeric paper. When this is
aftertreated with 1% NaOH, a green-black color is obtained. Similar treatment
with Na2CO, solution produces a blue-black color (59, 60). Reagent. Turmeric
paper ...
4
The London, Edinburgh and Dublin Philosophical Magazine and ...
The end of a decomposing wire proceeding from the prime conductor rested on
the turmeric paper. The machine being put in action, positive electricity passed
through the decomposing wire, in at one end of the turmeric paper, and out again
...
5
Food Analysis: Quality, Adulteration, and Tests of Identity
3. Pipettes. 4. Test tubes. REAGENTS 1. Concentrated HC1. 2. Turmeric paper:
Add 100 ml 80% alcohol to 1.5-2.0 g turmeric powder in 250 ml conical flask.
Shake 5 minutes and filter. Dip sheets of Whatman No. 2 paper into the clear
filtrate.
Food and Agriculture Organization of the United Nations, 1986
6
The Chemical Gazette, Or, Journal of Practical Chemistry, in ...
when the solution of boracic acid is mixed with another acid, and then dried upon
turmeric-paper. All acids have this action, but the stronger, acids as muriatic acid,
nitric acid, and even tartaric acid, but especially dilute sulphuric acid, in a far ...
7
The Chemical Gazette: Or, Journal of Practical Chemistry, in ...
Thus, — The neutral potash-salts of the acids of the first group do not give a
brown colour to turmeric paper, or acquire a yellow colour with the aetherial
solution. Those of the second group give a brown colour to turmeric paper, but do
not ...
William Francis, Henry Croft, 1856
8
The Journal of Science and the Arts
23. Singular Property of Boracic Acid.— I mentioned in the 6th vol. of this Journal,
p. 152 (1819), the property possessed by boracic acid in all states of dilution, of
reddening turmeric paper in the manner of an alkali. Since then the attention of ...
9
The Quarterly journal of science, literature and art
152, and XI. p. 403, I have shewn the effect of boracic acid, in reddening turmeric
paper. Mr. South, I believe, first shewed, that the sub-acetate of lead reddened
turmeric, and this has been considered sufficient evidence by many, that the
oxide ...
23. Singular Property of Boracic Acid.— I mentioned in the 6th vol. of this Journal,
p. 152 (1819), the property possessed by boracic acid in all states of dilution, of
reddening turmeric paper in the manner of an alkali. Since then the attention of ...
