PRODUCTS
‹
›
‹
›
CAS No.: 151-21-3
Molecular Weight：288.378
Modify Date.: 2023-04-07 14:14
Introduction: White to pale yellow paste or liquid with a mild odor. Sinks and mixes with water.
PRODUCT DESCRIPTION
- Name
- Sodium dodecyl sulfate
- Synonyms
205-788-1 Dodecyl sodium sulfate,Dodecyl sulfate sodium salt,Lauryl sulfate sodium salt DODECYL SULFATE SODIUM Dodecyl sulfate sodium salt,DNAse,RNAse and Protease free DODECYL SULFATE, SODIUM SALT DODECYLSULFURIC ACID SODIUM SALT IPC-SDS K-12 lipopolysaccharide LAURYL SULFATE NA-SALT Lauryl sulfate, sodium salt SDS Sodium dodecylsulfate
Chemical & Physical Properties
Purification Methods
- Purify this detergent by Soxhlet extraction with pet ether for 24hours, followed by dissolution in acetone/MeOH/H2O 90:5:5(v/v) and recrystallisation [Politi et al. J Phys Chem 89 2345 1985]. It has been purified by two recrystallisations from absolute EtOH, aqueous 95% EtOH, MeOH, isopropanol or a 1:1 mixture of EtOH/isopropanol to remove dodecanol, and dried under vacuum [Ramesh & Labes J Am Chem Soc 109 3228 1987]. SDS has also been purified by repeatedly foaming whereby a 0.15% aqueous solution is made to foam and the foam is discarded, then the H2O is removed in vacuo and the residue is diluted to the required concentrations [see Cockbain & McMullen Trans Faraday Soc 47 322 1951] or by liquid-liquid extraction [see Harrold J Colloid Sci 15 280 1960]. Dry it over silica gel. For DNA work it should be dissolved in excess MeOH passed through an activated charcoal column and evaporated until it crystallises out. It has also been purified by dissolving in hot 95% EtOH (14mL/g), filtering and cooling, then drying in a vacuum desiccator. Alternatively, it is crystallised from H2O, vacuum dried, washed with anhydrous Et2O and dried in vacuum again. These operations are repeated five times [Maritato J Phys Chem 89 1341 1985, Lennox and McClelland J Am Chem Soc 108 3771 1986, Dressik J Am Chem Soc 108 7567 1986]. [Beilstein 1 IV 1847.]
Usage
- Sodium dodecyl sulfate has excellent detergency, emulsification and foaming power, can be used as detergents and textile auxiliaries, and is also used as an anionic surfactant, toothpaste foaming agent, mine fire extinguishing agents, foaming agents for fire extinguishers, emulsion polymerization emulsifiers, emulsifying and dispersing agents for medical use, shampoo and other cosmetic products, wool detergent, detergent for silky class fine fabrics and flotation agent for metal beneficiation. GB 2760-96 stipulates as processing aids for food industry. It used as foaming agents; emulsifying agents; and anionic surfactants. It is used for cakes, drinks, proteins, fruits, fruit juice, and edible oil, and so on. It is used as surfactants, detergents, foaming agents, and wetting agents, and so on.It is used as relatively low-level ion-pairing reagents, and is cheaper than sodium heptanesulfonate and sodium pentanesulfonate when less demanding.It is used as raw material for modifying materials.It is used as additives in capillary electrophoresis analysis and is generally used as molar solution.It is also used in other analysis such as flow column analysis.
COMPANY PROFILE
Jinan KINDS Industrial Technology Co., Ltd. is engaged in the field of organic biology and focuses
on the research and development, production and sales of organic biological products.
Its products are oriented to pharmaceutical excipients and agricultural organic science.
The company has a variety of production lines and other advanced production and testing equipment and
high-quality technical personnel, mature technology, quality control technology and design and R&D groups,
and ensures the excellence and stability of its products through the ISO9001 product quality system.
MESSAGE
PRODUCTS RECOMMENDED
Chat Online