Biodiesel is a renewable fuel produced when agricultur al feedstocks such as vegetable oils, rendered animal fats, and used cooking oils are reacted with alcohol in the presence of a catalyst to form fatty acid esters, glycerin, and soap in a process known as transesterification. (cdc.gov)
Chemically speaking, oils are Tri-Glycerides or "Fatty-Acid Glycerin Esters" (FAGE). (evangelicaloutpost.com)
Through the transesterification reaction, triglycerides (i.e. oils or fats) are chemically reacted with an alcohol, usually methanol, in the presence of a catalyst, like sodium or potassium hydroxide, yielding fatty acid methyl esters (FAMEs) and glycerin by-product. (sigmaaldrich.com)
ASTM D6584, Standard Test Method for Determination of Total Monoglyceride, Total Diglyceride, Total Triglyceride, and Free and Total Glycerin in B-100 Biodiesel Methyl Esters by Gas Chromatography. (sigmaaldrich.com)
Mono5
All glycerides build mono-, di- and tri-esters in variable proportions. (europa.eu)
Fatty Acid Glycerides (mono-, di-, and tri-esters of carboxylic acids with glycerol) have a common metabolic fate that involves stepwise hydrolysis to the carboxylic (e.g. fatty) acids and glycerol. (europa.eu)
This non-toxic, biodegradable liquid fuel consists of mono-alkyl esters of long chain fatty acids (also known as fatty acid methyl esters, or FAMEs) and may be used alone or blended with petroleum-based diesel fuels. (sigmaaldrich.com)
DIN EN 14105, Fat and Oil Derivatives - Fatty Acid Methyl Esters (FAME) - Determination of Free and Total Glycerol and Mono-, Di-, Tri-glyceride Content. (sigmaaldrich.com)
It is the improved generation and high quality Omega-3 EPA/DHA TG concentrates with high TG (Triglycerides 80% or 90%) level, no EE (Ethyl Ester) Residue, low MG (Mono-Glycerides), low Oligomer, PAH -Benzo(a)pyrene free, high Stability and Purity. (nutraingredients.com)
Alcohols3
The chemical formulas of organic esters formed from carboxylic acids and alcohols usually take the form RCO2R' or RCOOR', where R and R' are the organyl parts of the carboxylic acid and the alcohol, respectively, and R can be a hydrogen in the case of esters of formic acid. (wikipedia.org)
A typical high-purity grade of lanolin is composed predominantly of long chain waxy esters (approximately 97% by weight) with the remainder being lanolin alcohols , lanolin acids and lanolin hydrocarbons . (wikipedia.org)
Lanolin's complex composition of long-chain esters, hydroxyesters, diesters, lanolin alcohols, and lanolin acids means in addition to its being a valuable product in its own right, it is also the starting point for the production of a whole spectrum of lanolin derivatives, which possess wide-ranging chemical and physical properties. (wikipedia.org)
Fatty acid m3
Because of economics and process considerations, methanol is the most commonly used alcohol in the transesterification process producing fatty acid methyl esters. (cdc.gov)
DIN EN 14110, Fat and Oil Derivatives - Fatty Acid Methyl Esters (FAME) - Determination of Methanol Content. (sigmaaldrich.com)
DIN EN 14214, Automotive Fuels - Fatty Acid Methyl Esters (FAME) for Diesel Engines - Requirements and Test Methods. (sigmaaldrich.com)
Hi, I need to size a CSTR for the transesterification of tri-glycerides into methyl esters (bio-diesel) by reaction with methanol and NaOH catalyst. (physicsforums.com)
Organic esters1
2002. Physiologically based pharmacokinetic (PBPK) models for nasal tissue dosimetry of organic esters: Assessing the state-of-knowledge and risk assessment applications with methyl methacrylate and vinyl acetate. (cdc.gov)
Carboxylic acids2
Esters derived from the simplest carboxylic acids are commonly named according to the more traditional, so-called "trivial names" e.g. as formate, acetate, propionate, and butyrate, as opposed to the IUPAC nomenclature methanoate, ethanoate, propanoate, and butanoate. (wikipedia.org)
Esters derived from more complex carboxylic acids are, on the other hand, more frequently named using the systematic IUPAC name, based on the name for the acid followed by the suffix -oate. (wikipedia.org)
Fats1
Any of numerous saturated or unsaturated aliphatic monocarboxylic acids, including many that occur in the form of esters or glycerides, in fats, waxes, and essential oils. (castlemalting.com)
Lactones1
Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. (wikipedia.org)
Derivatives2
According to some authors, organyl derivatives of acidic hydrogen of other acids are esters as well (e.g. amides), but not according to the IUPAC. (wikipedia.org)
O -Alkyl derivatives of other acidic compounds [see @A00266@] may be named as esters but do not belong to the class esters proper. (iupac.org)
Acetic acid2
Esters can be formed from oxoacids (e.g. esters of acetic acid, carbonic acid, sulfuric acid, phosphoric acid, nitric acid, xanthic acid), but also from acids that do not contain oxygen (e.g. esters of thiocyanic acid and trithiocarbonic acid). (wikipedia.org)
for example, according to them, trimethylstannyl acetate (or trimethyltin acetate) CH3COOSn(CH3)3 is a trimethylstannyl ester of acetic acid, and dibutyltin dilaurate (CH3(CH2)10COO)2Sn((CH2)3CH3)2 is a dibutylstannylene ester of lauric acid. (wikipedia.org)
IUPAC1
esters' in IUPAC Compendium of Chemical Terminology , 3rd ed. (iupac.org)
Molecule1
It is a glyceride consisting of two fatty acid chains covalently bonded to a glycerol molecule through ester linkages. (hmdb.ca)
Substances1
Some of the substances in the category contain unsaturated fatty acids (e.g. oleic acid in 2,3-dihydroxypropyl oleate, CAS 111-03-5 or general fatty acids C16-22 (even) unsaturated in Glycerides, C14-18 and C16-22-unsatd. (europa.eu)
Biodegradable1
antaron™ soja glyceride is a nature derived, biodegradable film former that delivers water resistance and SPF boosting benefits to sun care and color cosmetic formulations. (ashland.com)
Esters can also be derived from inorganic acids. (wikipedia.org)
O,O-dimethyl thiosulfate ((CH3−O−)2C=S) and O,S-dimethyl thiosulfate (CH3−O−C(=O)−S−CH3) Some inorganic acids that are unstable or elusive form stable esters. (wikipedia.org)
These results indicate that most of the absorbed fat is transported via the lymphatic channels to the systemic circulation whether fed as glycerides or free fatty acids. (europa.eu)
Chemistry1
In chemistry, an ester is a compound derived from an acid (organic or inorganic) in which the hydrogen atom (H) of at least one acidic hydroxyl group (−OH) of that acid is replaced by an organyl group (−R). Analogues derived from oxygen replaced by other chalcogens belong to the ester category as well. (wikipedia.org)
Consists1
[2] [3] Lanolin primarily consists of sterol esters instead. (wikipedia.org)
Form2
Two sets of experiments were conducted to study dehydration reactions of model lipid precursors in aqueous media to form acyl polyols and wax esters, and to evaluate the stability and reactions of the products at elevated temperatures. (nih.gov)
Esters of phosphoric acid form the backbone of DNA molecules. (wikipedia.org)
Formula2
For example, the ester hexyl octanoate, also known under the trivial name hexyl caprylate, has the formula CH3(CH2)6CO2(CH2)5CH3. (wikipedia.org)
Those esters have the formula RC(OR′)3, where R stands for any group (organic or inorganic) and R′ stands for organyl group. (wikipedia.org)
Alcohol2
An example of an ester formation is the substitution reaction between a carboxylic acid (R−C(=O)−OH) and an alcohol (R'−OH), forming an ester (R−C(=O)−O−R'), where R stands for any group (typically hydrogen or organyl) and R′ stands for organyl group. (wikipedia.org)
The names of esters that are formed from an alcohol and an acid, are derived from the parent alcohol and the parent acid, where the latter may be organic or inorganic. (wikipedia.org)
Products1
300 ( composite function)C. In the second set of experiments, mixtures of n-heptanoic acid and glycerol were heated using the same experimental conditions, with and without oxalic acid, between 100 ( composite function)C and 250 ( composite function)C. The main condensation products were two isomers each of monoacylglycerols and diacylglycerols at all temperatures, as well as minor amounts of the fatty acid anhydride and methyl ester. (nih.gov)
Free1
Tecton Ketone Hydration Drink is a caffeine-free clean energy drink using Tecton's beta-hydroxybutyrate glyceride ketone ester that tastes great! (priceplow.com)
In one category member the branching cannot be precisely located (Glycerides, C16-18 and C18-unsatd. (europa.eu)
Item1
About this item 10g nature-identical ketones: Tecton's ketone ester is nature-identical and provides the same energy and mental clarity as the ketones our bodies make naturally, without any. (priceplow.com)