The fatty acids of neem oil and their reduction products

Skellon, J. H.; Thorburn, S.; Spence, John W.; Chatterjee, Soumendranath

doi:10.1002/jsfa.2740131204

Cited by 24 publications

(17 citation statements)

References 2 publications

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“…Neem leaves contain a number of fatty acids like oleic acid, steric acid, palmitic acid, linoleic acid, etc. (Skellon et al, 1962). FTIR measurements also showed the presence of a large number of functional groups, OH, COOH, C O, >C C<, >S O, etc., in Neem leaves and these groups may contribute to the excellent sorption properties of NLP.…”

Section: Effect Of Adsorbate and Adsorbent Massmentioning

confidence: 95%

Adsorption of Chromium (VI) on Azadirachta Indica (Neem) Leaf Powder

2005

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A novel adsorbent was developed from mature leaves of the Neem tree (Azadirachta Indica) for removing metal ions from water. The adsorbent, in the form of fine powder, was found to be very effective in removing chromium (VI) from aqueous solution. The adsorption was carried out in a batch process taking different concentrations of the metal ion in aqueous solution with variation in adsorbent amount, pH, agitation time and temperature. The suitability of the adsorbent was tested with Langmuir and Freundlich isotherms and with various equilibrium kinetic data. A small amount of the Neem Leaf Powder (NLP) (1.6 g dm −3 ) could remove as much as 87% of Cr (VI) in 300 min from a solution of concentration 14.1 mg dm −3 at 300 K. The optimum range of pH for the adsorption process was 4.5-7.5 and since the natural pH of the Cr (VI) solution was 5.5, no addition of acid or alkali was necessary for achieving maximum adsorption. The adsorption coefficients indicated a high potentiality for the NLP to be used as an adsorbent for removing Cr (VI) from water.

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Section: Effect Of Adsorbate and Adsorbent Massmentioning

confidence: 95%

Adsorption of Chromium (VI) on Azadirachta Indica (Neem) Leaf Powder

2005

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“…It is also known to contain a number of fatty acids like oleic acid, steric acid, palmitic acid, linoleic acid, etc. (Skellon et al, 1962). The presence of polar groups on the surface McKay, 1999, 2000;Ho et al, 2001a) is likely to give considerable cation exchange capacity to the Neem leaf powder.…”

Section: Characterization Of the Adsorbentmentioning

confidence: 98%

Azadirachta indica leaf powder as an effective biosorbent for dyes: a case study with aqueous Congo Red solutions

Bhattacharyya

Sharma

2004

Journal of Environmental Management

391

105

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“…Other important constituents of Neem include a number of fatty acids like oleic acid, steric acid, palmitic acid, linoleic acid, etc. [21]. The presence of polar groups on the surface [2,9,11] is likely to give considerable cation exchange capacity to Neem leaf powder.…”

Section: Characterization Of the Adsorbentmentioning

confidence: 99%