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Description
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A white or pale yellow powder or crystals
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Solubility
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Freely soluble in water; forming an opalescent solution; partly soluble in ethanol (95%)
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Identification 'A' ( by IR)
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The spectrum of the sample should be concordant with spectrum of Sodium lauryl sulphate IPRS or with the reference spectrum of Sodium lauryl sulphate
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Identification 'B'
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The dichloromethane layer should be intensely blue
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Identification 'C'
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A white, crystalline precipitate should be produced
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Identification 'D'
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It should give reaction B of sodium salts
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Alkalinity
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Not more than 0.5 ml of 0.1 M hydrochloric acid should be required to change the colour of the solution
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Non-esterified alcohols
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NMT 4.0 %
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Sodium chloride and Sodium sulphate
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NMT a total of 8.0%
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Assay (as C12H25NaO4S)
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NLT 85.0%
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