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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/7221

Title: Chemical Studies on the Composition of Natural Paint Pigment Materials from the Kassena-Nankana District of the Upper East region of Ghana
Authors: Abagale, S.A.
Twumasi, S.K.
Awudza, J.A.M
Keywords: ochres
Paint
pigments
rocks
hematite
Issue Date: 2013
Publisher: Chemistry and Materials Research
Citation: Chemistry and Materials Research, Vol.3 No.1, 2013
Abstract: Three materials used in traditional paint making were analysed for their physical and chemical properties. Equipment employed were pH meter, AAS, Flame Photometer and X-ray diff ractometer. The “kugsabla” has a density of 0.5, and is sparingly soluble in water. The “kugpela” has a density of 0.6, and is very sparingly soluble in water. The “zigmolgo” has a density of 0.46, and is sparingly soluble in water. Aqueous solutions of all the three materials were mild basic, having pH values of 7.98, 7.99 and 7.91 respectively. The X-ray diffraction results showed that the black pigment contained quartz, [SiO2], Muscovite, [KAl2(Si3Al)O10(OH)2] and graphite, [C]; the white pigment contains Nimite, [(Ni,Mg,Al)6(Si,Al)4O10(OH)8], a nameless compound [Ni3Si4O10(OH)2], and Talc [Mg3Si4O10(OH)2], whilst the brown-red pigment contains hematite [Fe2O3] with 3 other peaks which could not be assigned – indicating also the presence of other substance(s). The “kugsabl a” had an Iron content of 4440.754 mg/Kg. It also contains 211.939 mg/Kg of Lead, 233.214 mg/Kg of Magnesium and 39.428 mg/Kg of arsenic. The “kugpel a” had 2802.065 mg/Kg Iron, 205.336 mg/Kg of Lead, 277.539 mg/Kg of Magnesium and the Arsenic content was 34.828 mg/Kg. The “zigmolgo” had 4886.976mg/Kg Iron content, 205.689mg/Kg of Lead, 15.569 mg/Kg of Magnesium and 36.244 mg/Kg Arsenic content. Zinc, Nickel, Calcium, and Potassium were also present in all the three pigments in amounts ranging from 55.988-107.057, 89.895-106.014, 50.150-342.011, and 25.473-871.275 mg/kg respectively.
Description: Article published in Chemistry and Materials Research,Vol.3 No.1, 2013.
URI: http://hdl.handle.net/123456789/7221
ISSN: 2225- 0956
Appears in Collections:College of Science

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