4-Hydroxybenzoesure Produkt Beschreibung

4-Hydroxybenzoic acid Struktur
99-96-7
  • CAS-Nr.99-96-7
  • Bezeichnung:4-Hydroxybenzoesure
  • Englisch Name:4-Hydroxybenzoic acid
  • Synonyma:4-Hydroxybenzoesure
    PHBA;LR-68;NSC 4961;FEMA 3986;4-hydroxy;Paraben-acid;4-Carboxyphenol;p-salicylicacid;p-Carboxyphenol;p-hydroxybenzoic
  • CBNumber:CB1412080
  • Summenformel:C7H6O3
  • Molgewicht:138.12
  • MOL-Datei:99-96-7.mol
4-Hydroxybenzoesure physikalisch-chemischer Eigenschaften
  • Schmelzpunkt: :213-217 °C (lit.)
  • Siedepunkt: :213.5°C (rough estimate)
  • Dichte :1,46 g/cm3
  • Brechungsindex :1.4600 (estimate)
  • FEMA  :3986 | 4-HYDROXYBENZOIC ACID
  • Flammpunkt: :199 °C
  • storage temp.  :Store below +30°C.
  • Löslichkeit :methanol: soluble5%, clear to slightly hazy, colorless to faintly yellow
  • pka :4.48(at 19℃)
  • Aggregatzustand :Crystalline Powder
  • Farbe :White to ivory
  • PH :3.3 (1g/l, H2O, 20℃)
  • Wasserlöslichkeit :5 g/L (20 ºC)
  • Merck  :14,4812
  • JECFA Number :957
  • BRN  :970950
  • InChIKey :FJKROLUGYXJWQN-UHFFFAOYSA-N
  • CAS Datenbank :99-96-7(CAS DataBase Reference)
  • NIST chemische Informationen :Benzoic acid, 4-hydroxy-(99-96-7)
  • EPA chemische Informationen :p-Hydroxybenzoic acid (99-96-7)
Sicherheit
  • Kennzeichnung gefährlicher :Xi
  • R-Sätze: :36-36/37/38
  • S-Sätze: :26-37/39-36
  • WGK Germany  :1
  • RTECS-Nr. :DH1925000
  • Selbstentzündungstemperatur :>250 °C
  • TSCA  :Yes
  • HS Code  :29182930
  • Giftige Stoffe Daten :99-96-7(Hazardous Substances Data)
  • Toxizität :LD50 orally in Rabbit: > 5000 mg/kg

4-Hydroxybenzoic acid Chemische Eigenschaften,Einsatz,Produktion Methoden

  • R-Sätze Betriebsanweisung: R36:Reizt die Augen.
    R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
  • S-Sätze Betriebsanweisung: S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
    S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
    S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
  • Chemische Eigenschaften WHITE TO BEIGE CRYSTALLINE POWDER
  • Chemische Eigenschaften 4-Hydroxybenzoic acid is an odorless white crystalline astringent powder. In pure form, it imparts a sweetish taste at first, which quickly becomes acrid and disagreeable
  • Occurrence Reportedly present in apple juice, black currant, cheese, beer, grape brandy, rum, sherry, wines, cocoa, peanut, soybean and wort.
  • Verwenden p-Hydroxybenzoic acid is of significant commercial importance. The most familiar application is the use of several of its esters as preservatives, known as parabens. Also of interest is the use in liquid crystal polymer applications.
  • Verwenden In organic. syntheses; intermediate for dyes, fungicides.
  • Verwenden Acetylsalicylic Acid Impurity A
  • Definition ChEBI: A monohydroxybenzoic acid that is benzoic acid carrying a hydroxy substituent at C-4 of the benzene ring.
  • synthetische Prepared from p-bromophenol or p-hydroxybenzaldehyde, or from saponification of methyl salicylate, a major component of oil of wintergreen.
  • Aroma threshold values Detection at 5 ppm (water)
  • Synthesis Reference(s) Journal of the American Chemical Society, 106, p. 174, 1984 DOI: 10.1021/ja00313a035
    The Journal of Organic Chemistry, 29, p. 3459, 1964 DOI: 10.1021/jo01035a003
  • läuterung methode Crystallise the hydroxyacid from water. [Beilstein 10 IV 345.]
4-Hydroxybenzoic acid Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
4-Hydroxybenzoesure Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
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99-96-7, 4-Hydroxybenzoic acid Verwandte Suche:
  • 4-hydroxy-benzoicaci
  • acidop-idrossibenzoico
  • Benzoic acid, p-hydroxy-
  • benzoicacid,4-hydroxy
  • Benzoicacid,4-hydroxy-
  • Hydroxybenzoic acid, para
  • Kyselina 4-hydroxybenzoova
  • kyselina4-hydroxybenzoova
  • p-hydroxybenzoic
  • PHBA
  • P-HYDROXYBENZOIC ACID
  • PARA HYDROXY BENZOIC ACID
  • RARECHEM AL BO 0112
  • FEMA 3986
  • HYDROXYBENZOIC ACID, 4-
  • AKOS BBS-00003776
  • ACETYLSALISYLIC ACID IMP A
  • ACETYLSALICYLIC ACID IMPURITY A
  • 4-Hydroxybenzoic acid Vetec(TM) reagent grade, 99%
  • 4-Hydroxybenzoic acid Solution, 100ppm
  • 4-Carboxyphenol
  • 4-hydroxy
  • Acetylsalicylic Acid IMpurity A (Aspirin IMpurity A)
  • Salicylic Acid Related CoMpound A
  • 4-Hydroxybenzoic acid ReagentPlus(R), >=99%
  • 4-Hydroxybenzoic acid ReagentPlus(R), 99%
  • p-Hydroxybenzoic acid, Standard for GC,>=99.5%(GC)
  • 4-HYDROXYBENZOIC ACID
  • 4-hydroxybenzenecarboxylic acid
  • PARA HYDROXY BENZONIC ACID
  • PARAHYDROXY BENZOIC ACID (POLYMER GRADE OF 99
  • 4-HYDROXYBENZOIC ACID, 99+%
  • P-HYDROXYBENZOIC ACID 99+%
  • 4-Hydroxybenzoic acid, 99.5%
  • 4-Hydroxybenzoic Acid-carboxyl-13C
  • P-HYDROXYBENZOICACID,REAGENT
  • PARA-HYDROXYBENZOATE
  • PARA-CARBOXYPHENOL
  • 4-Hydroxybenzoesure
  • 4-HYDROXYBENZOIC ACID / P-HYDROXYBENZOIC ACID
  • Aspirin EP IMpurity A
  • Aspirin IMpurity A
  • Aspirin Impurity 1
  • P-hydroxybenzoic acid (acetylsalicylic acid impurity A/aspirin impurity A)
  • p-hydroxy-benzoicaci
  • p-oxybenzoesaure
  • p-Salicylic acid
  • p-salicylicacid
  • 4-Hydroyxbenzoic acid
  • NSC 4961
  • Paraben-acid
  • p-Carboxyphenol
  • 4-Hydroxybenzoic acid, 99+% 100GR
  • LR-68
  • Hydroxybenzenecarboxylic acid
  • Salicylic Acid Related Compound A (100 mg) (4-hydroxybenzoic acid)
  • Acetylsalicylic Acid EP Impurity A
  • Acetylsalicylic Acid Impurity 1(Acetylsalicylic Acid EP Impurity A)