• Process for Preparing Nonionic Surfactant Sorbitan Fatty Acid ...

    The purpose of this work was to determine the course of the esterification reaction of hexitols and a long chain length fatty acid at different temperatures. Sorbitol esters of lauric acid were prepared by the esterification of sorbitol and lauric acid (molar ratio, 1:1) in the presence of p-toluenesulfonic acid as a catalyst.

  • Mannitol - Wikipedia

    Mannitol can be used to form a complex with boric acid. This increases the acid strength of the boric acid, permitting better precision in volumetric analysis of this acid. Other. Mannitol is the primary ingredient of mannitol salt agar, a bacterial growth medium, and is used in others.

  • Trimellitic Anhydride | Drug Information, Uses, Side Effects ...

    Know about technical details of Trimellitic Anhydride like: chemical name, chemistry structure, formulation, uses, toxicity, action, side effects and more at Pharmacompass.com.

  • Sorbitan - Wikipedia

    Sorbitan is a mixture of isomeric organic compounds derived from the dehydration of sorbitol and is an intermediate in the conversion of sorbitol to isosorbide. Sorbitan is primarily used in the production of surfactants such as polysorbates; which are important emulsifying agents, with a total annual demand of more than 10000 tons in 2012.

  • Changzhou ComWin Fine Chemicals Co.,Ltd. is a member of ...

    ComWin Fine Chemicals, founded in 2003, is located in Changzhou City, a beautiful historical and cultural city with a thousand years' history. Its manufacturing facility is situated in Changzhou Hi-Tech Industrial Zone.

  • Illustrated Glossary of Organic Chemistry - Anhydride; acid ...

    Illustrated Glossary of Organic Chemistry Anhydride ( acid anhydride): A functional group characterized by two acyl groups joined by an oxygen atom. When the R groups in the general structure shown below are not the same (i.e., when the anhydride is derived from two different carboxylic acids ) it is called a mixed anhydride .

  • Sorbitol | C6H14O6 - PubChem

    Sorbitol | C6H14O6 | CID 5780 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety ...

  • Preparation of Sorbitan Stearate - IIIS

    sorbitol is first dehydrated to sorbitan and then esterified with acid or alkaline catalysis [8]. Sorbitol for use may be D-sorbitol in the form of white powder. The fatty acid for use may be any fatty acid, Specific example stearic acid. The esterification of sorbitol condensate with fatty acid may be carried out with or without

  • Acid anhydride | Article about acid anhydride by The Free ...

    acid anhydride (ănhī`drīd, –drəd), chemical compound that reacts with water to form an acid (see acids and bases acids and bases, two related classes of chemicals; the members of each class have a number of common properties when dissolved in a solvent, usually water.

  • Sorbitan | definition of sorbitan by Medical dictionary

    sorbitan: ( sōr'bi-tan ), Sorbitol or sorbose and related compounds in ester combination with fatty acids and with short oligo (ethylene oxide) side chains and an oleate terminus to form detergents such as polysorbate 80.


    polysorbates. The sorbitan fatty acid esters are mono-, di-, and triesters of fatty acids (such as lauric, stearic, palmitic and oleic acids) and sorbitan. Sorbitan is a generic name for anhydrides derived from sorbitol, a naturally occurring crystalline hexahydric alcohol found in fruits, seaweed, and algae (CIR 2000).

  • Manufacture of fatty acid esters of sorbitan as surfactants ...

    A method of making fatty acid esters of sorbitan which comprises reacting the fatty acid directly with sorbitol in the presence of a catalyst system which comprises a phosphorus oxyacid, including a reducing phosphorus oxyacid, and an alkali or alkali earth metal strong base in a molar ratio of acid to base of from 0.9:1 to 1.7:1 and at a ...

  • Sorbitan Esters - Sorbitan Monooleate Exporter from Nagpur

    A mixture of the partial esters of sorbitol and its mono- and dianhydrides with edible commercial palmitic acid. SMP is a nonionic, mid-range HLB surfactant suggested for use as a w/o or an o/w emulsifier. It is slightly soluble in isopropanol, xylene and liquid paraffin, insoluble in water, and non-toxic. CAS No.: 26266-57-9

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  • Polyoxyethylene Sorbitan Fatty Acid Ester TWEEN/80 - Buy ...

    Polyoxyethylene Sorbitan Fatty Acid Ester TWEEN/80, find complete details about Polyoxyethylene Sorbitan Fatty Acid Ester TWEEN/80, Polyoxyethylene Sorbitan Fatty Acid Ester TWEEN/80, Tween Twain 80, Polysorbates 80 - SHIJIAZHUANG CITY HORIZON CHEMICAL INDUSTRY CO.,LTD

  • Isovaleric Anhydride | C10H18O3 | ChemSpider

    Structure, properties, spectra, suppliers and links for: Isovaleric Anhydride, 1468-39-9.

  • Organic acid anhydride - Wikipedia

    A common type of organic acid anhydride is a carboxylic anhydride, where the parent acid is a carboxylic acid, the formula of the anhydride being (RC(O)) 2 O. Symmetrical acid anhydrides of this type are named by replacing the word acid in the name of the parent carboxylic acid by the word anhydride. Thus, (CH 3 CO) 2 O is called acetic anhydride.

  • How do you write anhydride formulas? | Socratic

    How do you write anhydride formulas? ... What is the general formula of a carboxylic acid? What is a carboxyl group? What is an alkane? What is the formula of the ...

  • Sorbitan Oleate

    Sorbitan Oleate is the monoester of oleic acid (a source of omegas) and hexitol anhydrides derived from sorbitol (often used as a humectant). It is used in a variety of formulas used in the cosmetic industry, including skin care products, skin cleansing products, moisturizers, eye makeup and other makeup, according to RealSelf.com.

  • Sorbitol | C6H14O6 | ChemSpider

    The food industry uses D-sorbitol as an additive in the form of a sweetener, humectant, emulsifier, thickener, or dietary supplement. D-Sorbitol has also been found in cosmetics, paper, and pharmaceuticals. Naturally, D-sorbitol occurs widely in plants via photosynthesis, ranging from algae to higher order fruits of the family Rosaceae.

  • Intro to Organic Chemistry: Carboxylic Acids; Carboxylic ...

    name the carboxylic acid and replace word 'acid' with word 'anhydride'; e.g. ethanoic acid becomes ethanoic anhydride (aka acetic acid becomes acetic anhydride) anhydride reaction: hydrolysis react readily with water to give two carboxylic acids.


    It is used for vitamin-C fermentation. It is used as a excipient and intravenous osmotic diuretic in pharmaceutical fields. It is also used in the manufacture of polyethers for polyurethanes and surfactants. The term sorbitan describes the anhydride form of sorbitol, whose fatty acids are lipophilic whereas sorbitol body is hydrophilic.

  • Sorbitol, chemical structure, molecular formula, Reference ...

    A: Dissolve 1g of Sorbitol in 75mLof water.Transfer 3mLof this solution to a 15-cm test tube,add 3mLof freshly prepared catechol solution (1in 10),and mix.Add 6mLof sulfuric acid,mix again,then gently heat the tube in a flame for about 30seconds:a deep pink or wine red color appears.

  • SORBITAN OLEATE - Chemicalland21.com

    The term sorbitan describes the anhydride form of sorbitol, whose fatty acids are lipophilic whereas sorbitol body is hydrophilic. This bifunctionality in one molecule provides the basic properties useful in cleaners, detergents, polymer additives, and textile industry as emulsifiers, wetting agents, and viscosity modifiers.

  • PubChem

    PubChem is the world's largest collection of freely accessible chemical information. Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and physical properties, biological activities, safety and toxicity information, patents, literature citations and more.

  • Acetic Anhydride - Sigma-Aldrich

    Acetic anhydride can be used with a basic catalyst, such as pyridine. This combination promotes smooth reactions and has great solvent power. Pyridine acts as an acceptor for the acid by-product formed in the reaction. Pyridine may also react with acetic anhydride, however, forming N-acetyl-1,2-dihydro-2-pyridylacetic acid. Features/Benefits

  • Solvent-Free Polymerization of Citric Acid and D-Sorbitol

    Solvent-Free Polymerization of Citric Acid and D-Sorbitol KENNETH M. DOLL,1 RANDAL L. SHOGREN,2 J. L. WILLETT,2 GRAHAM SWIFT3 1Food and Industrial Oil Research Unit, National Center for Agricultural Utilization Research, Agricultural Research

  • Acid anhydride

    Functional group is a cyclic acid anhydride therefore suffix = - dioic anhydride Hydrocarbon structure is an alkane therefore -an-; The longest continuous chain is C5 therefore root = pent

  • FDA Amends Regulations for Sorbitol Anhydride Esters

    The Food and Drug Administration (FDA) is amending the food additive regulations to provide for the safe use of sorbitol anhydride esters, an emulsifier blend of sorbitan monostearate, polyoxyethylene (20) sorbitan monostearate (polysorbate 60) and polyoxyethylene (20) sorbitan monolaurate (polysorbate 20) as an anticorrosive agent in boilers where steam may contact food.

  • Acetic Anhydride | Drug Information, Uses, Side Effects ...

    101. 4161-ep2272843a1. 102. 4161-ep2272972a1. 103. 4161-ep2272973a1. 104. 4161-ep2274983a1. 105. 4161-ep2275105a1. 106. 4161-ep2275404a1. 107. 4161-ep2277848a1. 108 ...

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