• The total acid number (TAN) is a measurement of acidity that is determined by the amount of potassium hydroxide in milligrams that is needed to neutralize...
    4 KB (441 words) - 12:31, 9 April 2025
  • Thumbnail for Palmitic acid
    Palmitic acid (hexadecanoic acid in IUPAC nomenclature) is a fatty acid with a 16-carbon chain. It is the most common saturated fatty acid found in animals...
    14 KB (1,265 words) - 11:23, 24 May 2025
  • Thumbnail for Naphthenic acid
    content of naphthenic acids are often referred to as high total acid number (TAN) crude oils or high acid crude oil (HAC). Naphthenic acid was first discovered...
    20 KB (2,112 words) - 17:29, 2 May 2025
  • trifluoroacetic acid (TFA) reacts with basic constituents present in an oil sample. acid number "TBN Test/Analysis| Total Base Number Testing| ASTM D2896/D4739"...
    6 KB (886 words) - 16:00, 16 November 2023
  • Thumbnail for Fatty acid
    occurring fatty acids have an unbranched chain of an even number of carbon atoms, from 4 to 28. Fatty acids are a major component of the lipids (up to 70% by...
    56 KB (5,238 words) - 11:49, 18 May 2025
  • Thumbnail for Heidrun oil field
    naphthenic with 25.0 API (0.9043 g/cm3), 0.52% sulfur, and a high TAN (Total Acid Number) of 2.90. The Heidrun field is located on Haltenbanken in the Norwegian...
    4 KB (276 words) - 08:48, 2 November 2024
  • Thumbnail for Stearic acid
    fatty acids consumed in the United States, stearic acid consumption is second (26% of total saturated fatty acid intake) to palmitic acid (56% of total saturated...
    17 KB (1,576 words) - 08:01, 18 May 2025
  • aluminum and niobium Total acid number (TAN), the measure of a lubricant's or crude oil's acidity Transaction authentication number (TAN), in electronic...
    3 KB (444 words) - 23:27, 17 March 2025
  • Thumbnail for Sulfuric acid
    Sulfuric acid (American spelling and the preferred IUPAC name) or sulphuric acid (Commonwealth spelling), known in antiquity as oil of vitriol, is a mineral...
    65 KB (7,178 words) - 10:27, 25 May 2025
  • and increase its Total Acid Number (TAN). For example, the breakdown acids found in used gear oil may include carbocyclic acids, ketones, esters and nitration...
    17 KB (1,958 words) - 06:15, 8 July 2024
  • Thumbnail for Teetotalism
    Teetotalism (redirect from Tee-total)
    emphasised form of total, the tee- is presumably a reduplication of the first letter of total, much as contemporary idiom might say "total with a capital...
    28 KB (2,927 words) - 16:26, 30 May 2025
  • selection, number, and amount of foods to consume: Even when total protein and all other essential amino acids are satisfied, if the limiting amino acid is not...
    27 KB (2,692 words) - 19:43, 26 May 2025
  • Thumbnail for Hydrochloric acid
    Hydrochloric acid, also known as muriatic acid or spirits of salt, is an aqueous solution of hydrogen chloride (HCl). It is a colorless solution with...
    39 KB (3,995 words) - 10:24, 25 May 2025
  • Thumbnail for Thermometric titration
    assigned to titrimetry. Examples are Total Acid Number (TAN) in mineral and lubricating oils and Free Fatty Acids (FFA) in edible fats and oils. Automated...
    35 KB (4,524 words) - 12:52, 26 August 2024
  • Thumbnail for Motor oil
    quantity is determined as mg KOH/ (gram of lubricant). Analogously, total acid number (TAN) is the measure of a lubricant's acidity. Other tests include...
    66 KB (8,807 words) - 15:36, 3 June 2025
  • Thumbnail for Lysergic acid
    Lysergic acid, also known as D-lysergic acid and (+)-lysergic acid, is a precursor for a wide range of ergoline alkaloids that are produced by the ergot...
    8 KB (665 words) - 03:39, 2 April 2025
  • acid, systematically dodecanoic acid, is a saturated fatty acid with a 12-carbon atom chain, thus having many properties of medium-chain fatty acids....
    16 KB (1,348 words) - 07:47, 20 May 2025
  • Thumbnail for Amino acid
    Amino acids are organic compounds that contain both amino and carboxylic acid functional groups. Although over 500 amino acids exist in nature, by far...
    94 KB (10,035 words) - 12:47, 25 May 2025
  • beta oxidation (also β-oxidation) is the catabolic process by which fatty acid molecules are broken down in the cytosol in prokaryotes and in the mitochondria...
    33 KB (3,359 words) - 23:09, 23 May 2025
  • communication) TAGOGR – thermally assisted gas/oil gravity drainage TAN – total acid number TAPLI – tape listing TAPVE – tape verification TAR – true amplitude...
    99 KB (12,021 words) - 02:52, 1 April 2025
  • Thumbnail for Citric acid cycle
    The citric acid cycle—also known as the Krebs cycle, Szent–Györgyi–Krebs cycle, or TCA cycle (tricarboxylic acid cycle)—is a series of biochemical reactions...
    55 KB (6,095 words) - 01:17, 25 May 2025
  • Thumbnail for Pembroke Refinery
    type units. Pembroke refinery has the capability of refining high Total Acid Number crude oils like Captain and Doba crudes. At around 13:00 on 24 July...
    8 KB (841 words) - 13:12, 1 May 2025
  • Thumbnail for Gastric acid
    Gastric acid or stomach acid is the acidic component – hydrochloric acid – of gastric juice, produced by parietal cells in the gastric glands of the stomach...
    16 KB (1,794 words) - 19:08, 27 May 2025
  • Bile acids are steroid acids found predominantly in the bile of mammals and other vertebrates. Diverse bile acids are synthesized in the liver in peroxisomes...
    31 KB (3,853 words) - 04:46, 9 April 2025
  • Thumbnail for Oleic acid
    impurities. In chemical terms, oleic acid is classified as a monounsaturated omega-9 fatty acid, abbreviated with a lipid number of 18:1 cis-9, and a main product...
    22 KB (2,771 words) - 21:43, 29 May 2025
  • Thumbnail for Α-Linolenic acid
    12,15-octadecatrienoic acid. In physiological literature, it is listed by its lipid number, 18:3 (n−3). It is a carboxylic acid with an 18-carbon chain...
    23 KB (2,127 words) - 22:37, 29 May 2025
  • Thumbnail for Erucic acid
    Erucic acid is a monounsaturated omega-9 fatty acid, denoted 22:1ω9. It has the chemical formula: CH3(CH2)7CH=CH(CH2)11CO2H. It is prevalent in wallflower...
    8 KB (747 words) - 20:45, 29 May 2025
  • In chemistry, acid value (AV, acid number, neutralization number or acidity) is a number used to quantify the acidity of a given chemical substance. It...
    14 KB (1,601 words) - 19:03, 22 April 2025
  • essential fatty acids – alpha-linolenic acid (ALA) and linoleic acid – must be obtained from food or from a dietary supplement. Essential fatty acids are needed...
    24 KB (2,985 words) - 05:12, 7 April 2025
  • Thumbnail for Citric acid
    Citric acid is an organic compound with the formula C6H8O7. It is a colorless weak organic acid. It occurs naturally in citrus fruits. In biochemistry...
    38 KB (3,839 words) - 23:01, 2 June 2025