Benzolsulfonsäure Produkt Beschreibung

Benzenesulfonic acid Struktur
98-11-3
  • CAS-Nr.98-11-3
  • Bezeichnung:Benzolsulfonsäure
  • Englisch Name:Benzenesulfonic acid
  • Synonyma:Benzolsulfonsure;Benzolsulfonsäure;Benzolmonosulfons?ure;Phenylsulfons?ure
    BL70;17-120a;1998/11/3;besylicacid;Besylic acid;Benzolsulfonsure;BENZOLSULFONSAEURE;benzenesulfonicaci;Benzensulfonic acid;BENZENESULFONIC ACID
  • CBNumber:CB4668758
  • Summenformel:C6H6O3S
  • Molgewicht:158.18
  • MOL-Datei:98-11-3.mol
Benzolsulfonsäure physikalisch-chemischer Eigenschaften
  • Schmelzpunkt: :30-60 °C
  • Siedepunkt: :137℃
  • Dichte :1.32
  • Brechungsindex :1.5151 (estimate)
  • Flammpunkt: :>230 °F
  • storage temp.  :Store below +30°C.
  • Löslichkeit :H2O: soluble0.1g/10 mL, clear, colorless
  • pka :0.7(at 25℃)
  • Aggregatzustand :Damp Crystalline Solid or Fused Mass
  • Farbe :Yellow to light brown
  • PH :2 (H2O, 20℃)(saturated solution)
  • Wasserlöslichkeit :soluble
  • Sensitive  :Hygroscopic
  • Merck  :14,1070
  • BRN  :742513
  • Stabilität: :Stable. Incompatible with strong oxidizing agents, bases, many organic compounds.
  • InChIKey :SRSXLGNVWSONIS-UHFFFAOYSA-N
  • CAS Datenbank :98-11-3(CAS DataBase Reference)
  • NIST chemische Informationen :Benzenesulfonic acid(98-11-3)
  • EPA chemische Informationen :Benzenesulfonic acid (98-11-3)
Sicherheit
  • Kennzeichnung gefährlicher :C
  • R-Sätze: :22-34
  • S-Sätze: :26-36/37/39-45-36
  • RIDADR  :UN 2583 8/PG 2
  • WGK Germany  :1
  • RTECS-Nr. :DB4200000
  • TSCA  :Yes
  • HazardClass  :8
  • PackingGroup  :III
  • HS Code  :29041000
  • Giftige Stoffe Daten :98-11-3(Hazardous Substances Data)
  • Toxizität :LD50 orally in Rabbit: 1175 mg/kg

Benzenesulfonic acid Chemische Eigenschaften,Einsatz,Produktion Methoden

  • ERSCHEINUNGSBILD GRAUE BIS GELBE HYGROSKOPISCHE KRISTALLE ODER FLOCKEN MIT STECHENDEM GERUCH.
  • CHEMISCHE GEFAHREN Zersetzung beim Erhitzen unter Bildung giftiger und ätzender Rauche. Starke Säure in wässriger Lösung. Reagiert sehr heftig mit Basen. ätzend. Reagiert sehr heftig mit Oxidationsmitteln. Greift viele Metalle unter Bildung brennbarer/explosionsfähiger Gase an (z.B. Wasserstoff, ICSC-Nr. 0001).
  • ARBEITSPLATZGRENZWERTE TLV nicht festgelegt (ACGIH 2005).
    MAK nicht festgelegt (DFG 2005).
  • AUFNAHMEWEGE Aufnahme in den Körper durch Inhalation und durch Verschlucken.
  • INHALATIONSGEFAHREN Eine gesundheitsschädliche Partikelkonzentration in der Luft kann beim Versprühen schnell erreicht werden.
  • WIRKUNGEN BEI KURZZEITEXPOSITION WIRKUNGEN BEI KURZZEITEXPOSITION:
    Die Substanz verätzt die Augen, die Haut und die Atemwege. ätzend beim Verschlucken.
  • LECKAGE Persönliche Schutzausrüstung: Atemschutzgerät, P2-Filter für schädliche Partikel. Gesichtsschutz benutzen. Chemikalienschutzanzug. Verschüttetes Material in Kunststoffbehältern sammeln. Reste mit viel Wasser wegspülen.
  • R-Sätze Betriebsanweisung: R22:Gesundheitsschädlich beim Verschlucken.
    R34:Verursacht Verätzungen.
  • S-Sätze Betriebsanweisung: S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
    S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
    S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
    S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
  • Beschreibung Benzene sulfonic acid is an organo sulfur compound with the formula C6H5SO3H. It is the simplest aromatic sulfonic acid. It forms colorless deliquescent sheet crystals or a white waxy solid that is soluble in water and ethanol, slightly soluble in benzene and insoluble in carbon disulfide and diethyl ether. It is often stored in the form of alkali metal salts. Its aqueous solution is strongly acidic.
  • Chemische Eigenschaften green solid
  • Verwenden Benzenesulfonic acid is mainly consumed by conversion to other specialty chemicals. A variety of pharmaceutical drugs are prepared as salts of benzenesulfonic acid and are known as besylates or besilates. The alkali metal salt of benzenesulfonic acid was once widely used in the production of phenol. It acts as an acid catalyst for direct esterification of amino acids and peptides.
  • Application The alkali metal salt of benzene sulfonic acid was once widely used in the production of phenol :
    C6H5SO3Na + 2 NaOH → C6H5ONa + Na2SO3
    C6H5ONa + HCl → C6H5OH + NaCl
    The process has been largely displaced by the Hock process, which generates less waste. Benzene sulfonic acid is mainly consumed by conversion to other specialty chemicals. A variety of pharmaceutical drugs are prepared as salts of benzene sulfonic acid and are known as besylates or besilates.
  • synthetische Benzene sulfonic acid is prepared from the sulfonation of benzene using concentrated sulfuric acid :
    This conversion illustrates aromatic sulfonation, which has been called "one of the most important reactions in industrial organic chemistry.".
  • Definition ChEBI: The simplest member of the class of a benzenesulfonic acids that consists of a benzene carrying a single sulfo group.
  • Definition A white crystalline acid made by sulfonation of benzene. Any further substitution onto the benzene ring is directed into the 3 position.
  • Definition benzenesulphonic acid: A colourlessdeliquescent solid, C6H5SO2OH,m.p. 43–44°C, usually found as anoily liquid. It is made by treating benzenewith concentrated sulphuricacid. Its alkyl derivatives are used asdetergents.
  • Reaktionen Benzene sulfonic acid exhibits the reactions typical of other aromatic sulfonic acids, forming sulfonamides , sulfonyl chloride, and esters. The sulfonation is reversed above 220 °C. Dehydration with phosphorus pentoxide gives benzene sulfonic acid anhydride ((C6H5SO2)2O). Conversion to the corresponding benzene sulfonyl chloride (C6H5SO2Cl) is effected with phosphorus penta chloride. It is a strong acid, being dissociated in water.
  • Synthesis Reference(s) The Journal of Organic Chemistry, 61, p. 1530, 1996 DOI: 10.1021/jo9520710
    Tetrahedron Letters, 19, p. 1211, 1978 DOI: 10.1016/S0040-4039(01)94501-0
  • Allgemeine Beschreibung Deliquescent needles or large plates.
  • Air & Water Reaktionen Slightly soluble in water.
  • Reaktivität anzeigen Benzenesulfonic acid reacts with bases and many organic compounds.
  • Brandgefahr Flash point data for Benzenesulfonic acid are not available, however Benzenesulfonic acid is probably combustible.
  • Sicherheitsprofil Poison by ingestion, sbn contact, and probably inhalation. A severe skin and eye irritant. See also SULFATES and SULFONATES.
  • läuterung methode Purify benzenesulfonic acid by dissolving it in a small volume of distilled H2O and stirring with slightly less than the theoretical amount of BaCO3. When effervescence is complete and the solution is still acidic, filter off the insoluble barium benzenesulfonate. The salt is collected and dried to constant weight in vacuo, then suspended in H2O and stirred with a little less than the equivalent (half mol.) of sulfuric acid. The insoluble BaSO4 (containing a little barium benzenesulfonate) is filtered off and the filtrate containing the free acid is evaporated in a high vacuum. The oily residue will eventually crystallise when completely anhydrous. A 32% commercial acid is allowed to fractionally crystallise at room temperature over P2O5 in a vacuum desiccator giving finally colourless deliquescent plates m 52.5o. The anhydrous crystalline acid is deliquescent and should be stored over anhydrous Na2SO4 in the dark and should be used in subdued sunlight as it darkens under sunlight. The main impurity is Fe which readily separates as the Fe salt in the early fractions [Taylor & Vincent J Chem Soc 3218 1952]. The S-benzylisothiuronium salt has m 148o (from EtOH/H2O). It is an IRRITANT to the skin and eyes. [See Adams & Marvel Org Synth Coll Vol I 84 1941, Michael & Adair Chem Ber 10 585 1877, Beilstein 11 IV 27.]
Benzenesulfonic acid Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
Benzolsulfonsäure Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
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98-11-3, Benzenesulfonic acid Verwandte Suche:
  • 17-120a
  • BL70
  • BENZENESULFONIC ACID 90% TECHNICAL GRADE
  • BENZENE SULFONIC ACID TECHNICAL GRADE
  • BENZOLSULFONSAEURE
  • BENZENESULFONIC ACID SOLUTION 70% IN WA
  • BENZENESULFONIC ACID, TECH., 90%
  • BENZENESULFONIC ACID SOLUTION 30-35%
  • BENZENESULFONIC ACID, 98+%
  • BENZENESULFONIC ACID,PRACTICAL GRADE 90-95%
  • BENZENESULFONIC ACID, MM(CRM STANDARD)
  • BenzenesulfonicAcid99%
  • Benzenesulphonicacid,94%
  • Benzenesulfonic acid, 90%, tech.
  • 1-Benzenesulfonic acid
  • Benzolsulfonsure
  • BENZENESULFONIC ACID: TECH., CA 75% W/W AQUEOUS SOLUTION
  • Benzenesulfonic acid, tech. ca 75% w/w aq. soln.
  • Benzenesulfonic Acid Anhydrous
  • Benzenesulfonic acid, sesquihydrate,99%
  • Benzenesulphonic acid 94%
  • Benzenesulfonic acid, tech., 90% 1KG
  • Benzenesulfonic acid, tech., 90% 5GR
  • acidebenzenesulfonique
  • Benzenemonosulfonic acid
  • benzenemonosulfonicacid
  • Benzenesulfonicacid(40%solu
  • Besylic acid
  • besylicacid
  • Kyselina benzensulfonova
  • kyselinabenzensulfonova
  • BENZENESULPHONIC ACID
  • BENZENESULFONIC ACID
  • BENZENESULFONIC ACID FOR SYNTHESIS
  • Benzenesulfonic acid 98.0% (T)
  • Benzenesulfonic acid, 95%, 95%
  • 1998/11/3
  • Benzensulfonic acid
  • Zidovudine impurity K
  • Benzenesulfonic acid technical, >=90% (T)
  • benzenesulfonicaci
  • Benzenesulfonic acid ISO 9001:2015 REACH
  • Benzenesulfonic Acid (Surfactant)
  • 98-11-3
  • 998-11-3
  • 99-11-3
  • 1998-11-3
  • C6H6O3S32H2O
  • C6H5SO3H
  • C6H5SO3H112H20
  • C6H6O3S
  • C6H6SO3
  • Building Blocks
  • Organic Acids
  • Organic Building Blocks
  • Synthetic Reagents
  • Sulfonic/Sulfinic Acids
  • Sulfur Compounds