2017
DOI: 10.21577/0100-4042.20170119
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Caracterização Elementar Da Casca De Arroz E Suas Cinzas Por Mip Oes Após Decomposição Ácida Com Sistema De Refluxo

Abstract: determinations in samples of rice husk and rice husk ash by MIP OES. Sample preparation was performed using a reflux system adapted to the digestion tubes. This system allowed the decomposition of the samples without the necessity of replacement of the acids during this step without any loss of volatile elements. The decompositions were performed with 3.6 mL of HNO3 and 1.4 mL of H 2 SO 4 for 205 min in a digester block at 225 o C. The detection limit for determination of respective analytes in both samples we… Show more

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“…The south of Brazil is responsible for 11 millions of ton per year (Irga, 2021). In addition, rice husk is a waste that corresponds to 20% in weight of the rice produced (Lopes et al, 2017). The disposal of this waste is a problem and the husk have been used as combustible material in several industries producing the ash from this husk, that is highly attractive due to its active characteristics as pozzolan (Sensale, 2010;Das et al, 2020).…”
Section: Introductionmentioning
confidence: 99%
“…The south of Brazil is responsible for 11 millions of ton per year (Irga, 2021). In addition, rice husk is a waste that corresponds to 20% in weight of the rice produced (Lopes et al, 2017). The disposal of this waste is a problem and the husk have been used as combustible material in several industries producing the ash from this husk, that is highly attractive due to its active characteristics as pozzolan (Sensale, 2010;Das et al, 2020).…”
Section: Introductionmentioning
confidence: 99%