Lauryl Glycoside

Lauryl Glycoside - Names and Identifiers

Name	D-Glucopyranose, oligomeric, C12-14-alkyl glycosides
Synonyms	Alkyl glycoside APG-1214 Lauryl Glycoside C12-14-Alkyl glycosides oligomer D-Glucopyranose, oligomers, C12-14-alkyl glycosides D-Glucopyranose, oligomeric, C12-14-alkyl glycosides alkyl poly glycoside
CAS	157707-88-5
EINECS	500-395-4

Lauryl Glycoside - Physico-chemical Properties

PH	11.5~12.5
Physical and Chemical Properties	This product is a colorless to light yellow liquid or milky white paste, with no abnormal odor. It is insoluble in common organic solvents and has good solubility in water. The aqueous solution has no turbidity and will not form gel. Low surface tension, good detergency and compatibility, and can synergize with various ionic and non ionic surfactants. Good foaming property, rich and delicate foam. Resistant to strong alkalis and electrolytes, with good thickening ability. Non toxic, non irritating, and easily biodegradable.
Use	This product is easily soluble in alkaline solutions and is suitable for preparing high alkaline liquid cleaning agents. For example, high alkaline refining agents are formulated with 20% branched polyoxyethylene ether, 10% APG, and 10% AES. Its permeability is good and its cleaning performance is excellent. When used in dyeing process, the solution is not easy to produce foam, which can reduce the stain, especially suitable for high-temperature refining agent, high-temperature dyeing dispersant and leveling agent. When used for refining processing, adding APG can prevent over refining. APG itself has no electrolyte thickening effect, but its viscosity increases when mixed with anionic surfactants (especially lauryl polyglycosides), which can replace commonly used alkanolamides and do not cause environmental pollution. APG can also replace Pingpingjia as a paraffin emulsifier in the textile industry.

Lauryl Glycoside - safety

Open Data Verified Data

Alkyl glycoside products are aqueous solutions and should be stored in a well ventilated warehouse with an ambient temperature of no less than 0 ℃ and no more than 45 ℃, to avoid rainwater and exposure to sunlight. During the shipping process, the seal should be facing upwards to prevent exposure to sunlight and rain.

Last Update：2023-09-16 15:37:01

Lauryl Glycoside - Preparation method

Open Data Verified Data

Catalyst preparation

Dilute a certain amount of TiCl4 with water until there is no white smoke, then add ZrOCI2 · 8H2O of equal mass, stir and dissolve, adjust the pH of the solution to 10-11 with ammonia water, age the precipitate for 10 hours, filter, wash the precipitate with distilled water until there is no CI - (tested with 0.1mol/LAgNO3), and dry the precipitate with air at 110 ℃ for 12 hours to produce 80-100 mesh powder. Immerse 0.5-0.55mol/L H2SO4 solution for 6 hours, filter, dry, and calcine at a temperature of 500-550 ℃ for 3.5-4.0 hours to obtain a composite solid superacid catalyst.

Preparation of APG

Add a certain amount of lauryl alcohol and glucose monohydrate in the reaction kettle, with n (lauryl alcohol): n (glucose)=4.5:1, start stirring, reduce pressure and raise temperature to 80 ℃, fully stir to disperse the raw materials evenly, and add a certain amount of catalyst and 5% (mass fraction) of EDTA based on the amount of catalyst in proportion. m (catalyst): m (glucose)=(0.015-0.020): 1, raise temperature to 120 ℃, and react for about 3.5 hours at 4.5-5.5kPa, After the reaction is completed, filter while hot, recover the catalyst, and then adjust the pH value to 8-10 with a 2mol/L Na2CO3 solution. Distill excess alcohol under reduced pressure. The crude product is bleached with 30% (mass fraction) H2O2 to obtain the product. The catalyst can be reused 5 times. The yield of glycosides is above 150%.

Last Update：2024-01-02 23:10:35

Lauryl Glycoside - Uses and synthesis methods

Alkyl glycosides

alkyl glycoside, Alkyl Polyglucoside (APG for short). It is dehydrated by the hemiacetal hydroxyl group and fatty alcohol hydroxyl group of glucose under catalytic action. Alkyl glycoside (APG) is a new type of high-efficiency, non-toxic, and biodegradable non-ionic surfactant with good surface activity. The raw materials required for its production are glucose and fatty alcohol derived from renewable natural resources. After compounding, it can form the best surfactant at present. APG has very excellent performance, strong foaming force, stable foam, good wetting, excellent compatibility, low irritation to human body, and extremely low toxicity, it can rapidly biodegrade and is currently the only variety in the world that can be called non-toxic. Therefore, APG is known as a "world-class" surfactant for its superior performance.

alkyl glycosides can be used in daily chemical industry, textile industry, pesticide industry, food industry, oil extraction industry, etc.

Nonionic Surfactants

Alkyl glycosides (APG) are non-ionic surfactants and have the properties of both non-ionic and anionic surfactants (acid and alkali resistance, good compatibility, high stability, and good decontamination, foaming, dispersion, emulsification, wetting and other characteristics). Alkyl glycosides (APG) are synthesized from natural fatty alcohols (hydrogenated after hydrolysis of natural oils) and glucose (starch hydrolysate) under the action of acidic catalysts. It is a new type of high-efficiency, non-toxic, biodegradable non-ionic surfactant with good surface activity. After compounding, it can form the best surfactant at present. Alkyl glycosides have very excellent performance, low surface tension, strong foaming force, stable foam, good wettability, excellent compatibility, and little irritation to human body. Since the raw materials for the production of alkyl glycosides come from renewable agricultural products, mainly starch hydrolysate glucose, vegetable oil hydrogenation product higher fatty alcohol, so it can be rapidly biodegraded and is currently the only non-toxic in the world. The variety is known as a "world-class" surfactant.

Alkyl glycosides are used in many industries and fields, such as washing industry, makeup industry, food processing industry, textile printing and dyeing, pesticides, pharmaceuticals and many other fields. As a raw material for non-ionic neutral detergents, they have a very broad application prospect and can be used as high-end clothes cleaning agents. In addition, alkyl glycosides have broad-spectrum antibacterial activity against gram-negative bacteria, gram-positive bacteria and fungi. Therefore, it has more advantages as tableware cleaning agent, shampoo, skin cleaning agent and toilet cleaning agent. Alkyl glycosides can also be used as emulsifiers, wetting agents, foaming agents, thickeners, dispersants and dust inhibitors. In recent years, good application results have been achieved in pesticide emulsifiers.

Application of liquid handmade soap

many people feel that the liquid is not sticky enough after dissolving soap seeds. for soap makers who advocate nature, it is a big problem to find a non-toxic, harmless and efficient thickener. Alkyl glycosides can definitely satisfy soap makers in terms of safety, because many children's shampoos and shower gels are indispensable for AGP. For manual liquid soap, liquid soap itself belongs to anionic surfactant and has the properties of anionic surfactant, such as decontamination, foaming, dispersion, emulsification, wetting and other characteristics. For AGP, it has the properties of non-ionic and anionic surfactants, so it is very compatible with liquid soap. In addition, when AGP is added to the handmade soap, the characteristics of non-ionic surfactants will be introduced to the handmade soap, that is, it has high stability and can resist acid and alkali. And the better thing for soaps is that it can increase the anti-hard water performance of soap. However, AGP also has its disadvantages. It is similar to traditional surfactants. AGP is alkaline and belongs to the type with relatively low cleaning ability of nonionic surfactants. Due to its relatively high price and low detergency, it is best to compound with other emulsifiers to achieve the ideal effect (it will be better to use betaine, AES, amino acid surfactants, etc.).

Last Update：2024-04-09 21:01:54