Results 41 to 50 of about 666 (170)
A Critical review about Haratala ( Orpiment )
Journal of Ayurveda and Integrated Medical Sciences (JAIMS), 2017 Haratala (Arsenic trisulphide) is an inorganic compound with the formula As2S3. The Haratala is used without proper purification the toxic effects are Daha (burning sensation), Kampaka (tremors), Toda (pricking pain), Kshobha, Pida, Raktadusti (vitiates blood), Kushta (skin disease), Malinikaroti Gatram, Vata Kapha Prakopatamaka Roga, Mrtyusankakara ...
Pranav K. Shah +3 more
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Engineered ScienceTraditional architectural paintings, particularly those in the Qinghai-Tibetan Plateau, face significant color fading due to high UV radiation, threatening their artistic and cultural value. This study investigates Stellera chamaejasme L., a native plant,
Ting Huang +6 more
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MULTI-INSTRUMENTAL IDENTIFICATION OF ORPIMENT IN ARCHAEOLOGICAL MORTUARY CONTEXTS [PDF]
Journal of the Chilean Chemical Society, 2014 This paper reports on an unknown yellowish mineral compound found in an archaeological context from Chorrillos cemetery (Calama, Chile) dating to the Early Formative period (800 - 200 B.C.). We used optic microscopy, SEM, EDX, ¹H-RMN, 13C-RMN, and infrared (IR) and Raman spectroscopy to tease out the chemical and molecular composition of the sample ...
Ugalde, J.P. +6 more
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International Journal of Speleology, 2011 Orpiment, tamarugite and pickeringite occur in close association above the surface of thermal water cave pools in the active sulfuricacid caves of Aghia Paraskevi on the Kassandra peninsula, northern Greece.
Lazarides Georgios +2 more
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Physico-Chemical Modeling of the Sulfo-Arsenide System of Gold Bearing Ore Deposits [PDF]
International Journal of Economic and Environment Geology, 2010 The existence of gold-arsenic mineralization, the presence of enhanced concentrations of gold in arsenopyrite, especially in its fine grain varieties showing positive gold-arsenic ratios in gold-quartz and gold-pyritic ores indicate the important role of
N. V. VILOR, L.A. KAZMIN
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Heritage Science, 2019 Efforts to read medieval manuscript waste recycled as bookbinding material in the sixteenth and seventeenth centuries have resulted in the chemical analysis of four books housed at the University Library of Southern Denmark and the Smithsonian Libraries ...
Thomas Delbey +8 more
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Heritage, 2023 The Virgin Hodegetria, located in the Cathedral of Santa Maria Nuova in Monreale, near Palermo (Italy), probably dating the first half of the 13th century, is one of the earliest examples of medieval panel painting in Sicily.
Maria Letizia Amadori +6 more
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ChemPlusChem, Volume 90, Issue 7, July 2025.Hungarian mine green, a pigment precipitated from drainage water containing basic copper sulfates and carbonates, represented an important product for painters with the peak of its production in the 16th and 17th centuries in the Banská Bystrica region (Slovakia).
Markéta Žůrková +4 more
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The Crystal Structure of Orpiment
X-RAYS, 1949 The structure of orpiment (As2S3) has been analysed using X-ray methods (Weissenl erg and oscillation photographs, Co Ka, λ=1.79A) . The unit cell has the dimensions, a=11.46A, b=9.66A, c=4.21A, β=90°, containing four molecules of As2S3. The space groap is C52A-P21/n, with reflexions (hOl) and (OkO) being absent respectively when h+l.
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Occurrence of sulphur, orpiment, and realgar in the Yellowstone National Park [PDF]
American Journal of Science, 1891 n ...
Weed, W. H., Pirsson, L. V.
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