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2,4-Dihydroxybenzoic acid

Basic information Uses Toxicity Usage limits Chemical properties Application Preparation Safety Related Supplier
2,4-Dihydroxybenzoic acid Basic information
2,4-Dihydroxybenzoic acid Chemical Properties
  • Melting point:208-211 °C (dec.)(lit.)
  • Boiling point:237.46°C (rough estimate)
  • Density 1.3725 (rough estimate)
  • FEMA 3798 | 2,4-DIHYDROXYBENZOIC ACID
  • refractive index 1.6710 (estimate)
  • Flash point:200 °C
  • storage temp. Store below +30°C.
  • solubility 8g/l
  • form Crystalline Powder
  • pka3.11, 8.55, 14.0(at 25℃)
  • color Cream to slightly beige or pink
  • Water Solubility 8 g/L (20 ºC)
  • JECFA Number908
  • Merck 14,8157
  • BRN 1946213
  • InChIKeyUIAFKZKHHVMJGS-UHFFFAOYSA-N
  • CAS DataBase Reference89-86-1(CAS DataBase Reference)
  • NIST Chemistry Reference2,4-Dihydroxybenzoic acid(89-86-1)
  • EPA Substance Registry System2,4-Resorcylic acid (89-86-1)
Safety Information
  • Hazard Codes Xi
  • Risk Statements 36/37/38
  • Safety Statements 26-36-37/39
  • WGK Germany 1
  • RTECS VH3708050
  • TSCA Yes
  • HS Code 29182990
MSDS
2,4-Dihydroxybenzoic acid Usage And Synthesis
  • Uses2,4-Dihydroxybenzoic acid is a useful synthetic intermediate. An organic building block for plastics and rubber products.
  • ToxicityGRAS (FEMA).
  • Usage limitsFEMA (mg/kg): cold drink: 450; Meat, dairy, processed vegetables, 100; fudge, gel, pudding, snack food, beverages, breakfast cereals, fats, cheeses, poultry products, fish, spices, sweet sauce, dairy products, meat soup, fruit ice Egg products, jams, jelly, rehydrated vegetables, 500; soup: 250; jelly sugar: 3333; instant coffee and tea: 12.5; sugar substitute: 12500; seasoning spices: 25000.
  • Chemical propertiesIt appears as white needle crystal. It will contain crystal water upon crystallization from the water. It appears as an anhydride at 100 ℃. Melting point 218-219 ° C (it has a melting point of 213 ° C upon thermal shock). Soluble in hot water, ethanol, ether. Cooking in water, acid or salt solution will remove carbon dioxide. It exhibits red color upon reaction with ferric chloride.
  • Application
    • The product has the chemical properties of both resorcinol and salicylic acid. It can be used in chemical reagents for colorimetric determination of iron, titanium and other elements; for organic synthesis, it is mainly used for dyes and pharmaceutical intermediates. 2, 4-dihydroxybenzoic acid is a major raw material during the production of acidic medicated pink 3BM, which consumes 157 kg per ton of dye (by 100%).
    • Used as a dye intermediate, medicine and reagents
    • Used as dyes, pharmaceuticals, pesticide intermediates
  • PreparationIt is derived from the hydroxylation of resorcinol.
  • Chemical Propertiescream to slightly beige or pink crystalline powder
  • Chemical PropertiesDihydroxybenzoic acid is a colorless solid and is used as a flavor modifier.
  • OccurrenceReported present in avocados, beer, red wine, roast coffee, sherry, smoked sausage and white wine
  • UsesIntermediate for dyestuffs and drugs; spot test reagent for iron.
  • PreparationPrepared from resorcinol and potassium bicarbonate in glycerol or water by heating and passing carbon dioxide through the mixture.
  • Purification MethodsCrystallise the acid from water. [Beilstein 10 IV 1420.]
2,4-Dihydroxybenzoic acid Preparation Products And Raw materials
2,4-Dihydroxybenzoic acid(89-86-1)Related Product Information
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  • Company Name:- Gold
  • Tel:17310985352
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  • Products Intro:CAS:89-86-1
    Purity:99 Package:1kg；25kg；1t
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  • Products Intro:Product Name:2,4-Dihydroxybenzoic acid
    CAS:89-86-1
    Purity:99% Package:25kg
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  • Products Intro:Product Name:2,4-Dihydroxybenzoic acid
    CAS:89-86-1
    Purity:99.0% Package:25KG
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  • Products Intro:Product Name:2,4-Dihydroxybenzoic acid
    CAS:89-86-1
    Purity:99.0%
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  • Products Intro:Product Name:2,4-Dihydroxybenzoic acid
    CAS:89-86-1
    Purity:99%
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