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Sodium Dodecyl Sulfate or Sodium Lauryl Sulfate Sulphate Specifications of Commercial Pure & BP Ph Eur EP JP USP IP Analytical Reagent FCC Food Grade Manufacturers & Exporters Please visit Sodium Dodecyl Sulfate or Sodium Lauryl Sulfate Sulphate USP NF ACS BP Ph Eur EP JP IP Analytical reagent FCC Food grade Manufacturers our associates world class FDA-GMP approved, ISO-9001 Certified facility Anmol Chemicals Sodium Dodecyl Sulfate or Sodium Lauryl Sulfate Sulphate CAS Number 151-21-3 Sodium Lauryl Sulfate USP NF Grade Specifications: Sulfuric acid monododecyl ester sodium salt; Sodium monododecyl sulfate CAS 151-21-3 DEFINITION Sodium Lauryl Sulfate is a mixture of sodium alkyl sulfates consisting chiefly of sodium lauryl sulfate [CH3(CH2)10CH2OSO3Na]. It contains NLT 85.0% of sodium alkyl sulfates calculated as C12H25NaO4S. IDENTIFICATION A. Identification Tests-General, Sodium: To pass the test. B. Identification Tests-General, Sulfate: To pass the test. C. Sample: 0.1 g Analysis: Dissolve the Sample in 10 mL of water and shake. Acceptance criteria: A copious foam is formed. D. Sample: Solution prepared for Identification test C Analysis: To 0.1 mL of the Sample, add 0.1 mL of a 1 g/L solution of methylene blue and 2 mL of sulfuric acid, diluted. Add 2 mL of methylene chloride and shake. Acceptance criteria: An intense blue color develops in the methylene chloride layer. Sodium Chloride: Fluorescein sodium solution: Dissolve 0.2 g of fluorescein sodium in water to 100 mL. Dilute nitric acid: Dilute 105 mL of nitric acid with water to 1000 mL. Sample solution: 100 mg/mL of Sodium Lauryl Sulfate in water Analysis: Neutralize 50 mL of Sample solution with Dilute nitric acid, using litmus paper as the indicator. If necessary, add exactly 5.0 mL of 0.1 N sodium chloride and titrate with 0.1 N silver nitrate VS (indicator: 2 drops of Fluorescein sodium solution) to the first appearance of turbidity with solution color change from yellow green to orange through yellow. Perform a blank determination and make any necessary correction. Each mL of 0.1 N silver nitrate is equivalent to 5.844 mg of sodium chloride. Acceptance criteria: The combined content of sodium chloride and sodium sulfate is NMT 8.0%. Sodium Sulfate: Sample solution: 100 mg/mL of Sodium Lauryl Sulfate in water Analysis: To 10 mL of Sample solution, add 100 mL of alcohol and heat at a temperature just below the boiling point for 2 h. Pass through a glass filter (pore size equivalent to 5 to 10 µm) while hot, and wash with 100 mL of boiling alcohol. Dissolve the precipitate by washing with 150 mL of water, collecting the washings in a beaker. Add 10 mL of hydrochloric acid, diluted, heat to boiling, add 25 mL of barium chloride and allow to stand overnight. Collect the precipitate and wash with water until the last washing shows no opalescence with 0.1 N silver nitrate. Dry the precipitate, ignite to constant mass between 500C and 600C by raising the temperature gradually, and weigh as barium sulfate (BaSO4; 233.39). Amount (mg) of sodium sulfate (Na2SO4) = amount (mg) of barium sulfate (BaSO4) x 0.6086 Acceptance criteria: The combined content of sodium chloride and sodium sulfate is NMT 8.0%. Alkalinity: Sample solution: Dissolve 1.0 g in 100 mL of water, add 0.1 mL of phenol red TS, and titrate with 0.10 N hydrochloric acid. Acceptance criteria: NMT 0.5 mL for neutralization Total Alcohols: Transfer 5 g to an 800-mL Kjeldahl flask, and add 150 mL of water, 50 mL of hydrochloric acid, and a few boiling chips. Attach a reflux condenser to the Kjeldahl flask, heat carefully to avoid excessive frothing, and boil for 4 h. Cool the flask, rinse the condenser with ether, collecting the ether in the flask, and transfer the contents to a 500-mL separator, rinsing the flask twice with ether and adding the washings to the separator. Extract the solution with two 75-mL portions of ether, evaporate the combined ether extracts in a tared beaker on a steam bath, dry the residue at 105C for 30 min, cool, and weigh. Acceptance criteria: The residue represents the total alcohols and is NLT 59.0% of the weight of Sodium Lauryl Sulfate taken. Unsulfated Alcohols: Sample solution: Dissolve 10 g in 100 mL of water and add 100 mL of alcohol. Analysis: Transfer the solution to a separator, and extract with three 50-mL portions of petroleum ether. If an emulsion forms, sodium chloride may be added to promote separation of the two layers. Wash the combined petroleum ether extracts with three 50-mL portions of water, and dry with anhydrous sodium sulfate. Filter the petroleum ether extract into a tared beaker. Evaporate on a water bath until the odor of petroleum ether no longer is perceptible, dry the residue at 105C for 30 min, cool, and weigh. Acceptance criteria: The weight of the residue is NMT 4.0% of the weight of Sodium Lauryl Sulfate taken. Packaging and Storage: Preserve in well-closed containers. Specifications of Sodium Lauryl Sulphate BP Ph Eur Grade Ph Eur Sodium Dodecyl Sulphate Sodium Laurilsulfate, Ph Eur Action and use: Anionic emulsifying agent. DEFINITION Mixture of sodium alkyl sulphates consisting chiefly of sodium dodecyl sulphate (C12H25NaO4S; Mr 288.4). Content: sodium alkyl sulphates: minimum 85.0 per cent, expressed as C12H25NaO4S. CHARACTERS Appearance: White or pale yellow, powder or crystals. Solubility: Freely soluble in water giving an opalescent solution, partly soluble in ethanol (96 per cent). IDENTIFICATION A. Dissolve 0.1 g in 10 ml of water R and shake. A copious foam is formed. B. To 0.1 ml of the solution prepared for identification test A, add 0.1 ml of a 1 g/l solution of methylene blue and 2 ml of dilute sulphuric acid. Add 2 ml of methylene chloride and shake. An intense blue colour develops in the methylene chloride layer. C. Mix about 10 mg with 10 ml of anhydrous ethanol. Heat to boiling on a water-bath, shaking frequently. Filter immediately and evaporate the ethanol. Dissolve the residue in 8 ml of water, add 3 ml of dilute hydrochloric acid, evaporate the solution to half its volume and allow to cool. Separate the congealed fatty alcohols by filtration. To the filtrate add 1 ml of barium chloride solution. A white, crystalline precipitate is formed. D. Ignite 0.5 g. The residue gives reaction of sodium. TESTS Alkalinity: Dissolve 1.0 g in 100 ml of carbon dioxide-free water and add 0.1 ml of phenol red solution. Not more than 0.5 ml of 0.1 M hydrochloric acid is required to change the colour of the indicator. Non-esterified alcohol: Maximum 4 per cent. Sodium chloride and sodium sulphate: Maximum 8.0 per cent for the total percentage content. Sodium chloride: Dissolve 5.00 g in 50 ml of water, add dilute nitric acid dropwise until the solution is neutral to blue litmus paper, add 2 ml of potassium chromate solution and titrate with 0.1 M silver nitrate. 1 ml of 0.1 M silver nitrate is equivalent to 5.844 mg of NaCl. Sodium sulphate: Dissolve 0.500 g in 20 ml of water, warming gently if necessary, then add 1 ml. SDS MSDS of Sodium Dodecyl Sulfate or Sodium Lauryl Sulfate Sulphate BP Ph Eur EP JP USP NF IP ACS Analytical Reagent FCC Food grade Manufacturers

Crystal Clear Products and the group companies are manufacturing chemicals since several decades. We have automatic vacuum operated titanium evaporators and SS316 equipments to produce top grade of chemical products. We have toll manufacturers and representatives in China, UAE, Europe, Canada & USA and agents & customers in all countries like USA, Canada, Europe, UAE, South Africa, Tanzania, Kenya, Egypt, Nigeria, Uganda, Turkey, Mexico, Brazil, Chile, Argentina, Bangkok Thailand, Kaula Lumpur Malaysia, Dubai UAE etc. & sales representative in Chicago, Houston New York & Los Angeles, USA. Associated units are FDA-GMP certified, Halal and/or Kosher certified, REACH registered, ISO-9001, ISO-22000 HACCP certified, Crisil Rated.

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Crystal Clear Products
Plot No-C1-1031-9, GIDC Estate, Panoli, Ankleshwar, Gujarat - 393002. India
Telephone Mobile: 91-7506449333; e-mail: info@crystalclearproducts.org

e-mail: info@crystalclearproducts.org

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