+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

Study on one-step method for preparing pyrogallol from tara powder

Study on one-step method for preparing pyrogallol from tara powder

Chemistry and Industry of Forest Products 16(2): 7-12

Pyrogallol was prepared by a one-step method from tara powder (from the pods of Caesalpinia spinosa). The optimum conditions of reaction were found to be: ratio of tara powder to water: 1:3 by weight, quantity of calcium oxide added: 15-25% of tara powder, reaction temperature: 200 degrees C, and reaction time: 3 h. The product, after purification with xylene, met the requirement of reagent standards of pyrogallol. The content of pyrogallol was 99.0% (HPLC method).

(PDF emailed within 1 workday: $29.90)

Accession: 002970143

Download citation: RISBibTeXText

Related references

Method of preparing mixed electrolyte powder for bicarbonate dialysis and powder mixture formed us patent 4655941 april 7 1987. 1987

Method for preparing dehydrated tomato powder for examination by the Howard mold count method. Journal - Association of Official Analytical Chemists 55(1): 73-75, 1972

Study on the analysing methods of tannin of Tara (Caesalpinia spinosa Kuntze, Tara). Southwest China Journal of Agricultural Sciences 20(4): 782-786, 2007

Method of preparing echinacea powder. Official Gazette of the United States Patent & Trademark Office Patents 1245(3), Apr 17, 2001

Method for preparing a non)-hygroscopic lactulose-containing powder. British Patent: (1 583 313), 1981

Imitation cocoa powder and method of preparing same. United States Patent: (US 4 335 153), 1982

Method for preparing a non-hygroscopic lactulose-containing powder. United States Patent: (4 142 916), 1979

Hide powder method of preparing pure tannin. J. sci. industr. Res, India., 12B: 569-70. bibl. 10, 1953

Method for preparing a mixture of finely crystallized fat and a powder. United States Patent: (3 973 046), 1976

Method and a device for preparing a quickly soluble powder. United States Patent: (3 687 681), 1972

Method for preparing a basic powder mixture for ice cream manufacture. Neth. Pat. Appl, 6 904 091,, 1970

Edibility of tara fine powder. 2008

Comparison study of urine protein methods using a new benzethonium chloride method with a pyrogallol red method. Clinical Chemistry 38(6): 1049, 1992

Method for preparing capillary tube samples for X-ray diffraction powder analysis. Review of Scientific Instruments 20(5): 373-373, 1949