I-p-Toluenesulfonic Acid Monohydrate (CAS 6192-52-5) - I-High-Purity Catalyst & Organic Intermediate

Uhlolojikelele Lomkhiqizo

I-p-Toluenesulfonic acid monohydrate (i-PTSA monohydrate, i-Tosylic acid monohydrate) iyi-asidi ephilayo eqinile esetshenziswa kabanzi njenge-catalyst ekuphenduleni kwe-esterification, i-acetalization, kanye ne-condensation.

• Inombolo ye-CAS: 6192-52-5

• I-Molecular Formula: C₇H₈O₃S · H₂O

• Isisindo samangqamuzana: 190.22 g/mol

• Ubumsulwa: ≥99.0% (HPLC)

• Indawo Encibilikayo: 103–106 °C (enokubola)

• Ukubukeka: Okuqinile kwecrystalline okumhlophe ukuya kokumhlophe

• Isitoreji: Gcina endaweni epholile, eyomile futhi engenawo umoya; gwema umswakama kanye nama-oxidizers aqinile.

Izakhiwo Eziyinhloko

I-PTSA monohydrate ayiguquguquki futhi izinzile ngokushisa ngaphansi kwezimo zokusabela ezijwayelekile. Isebenza njengomthombo okahle we-p-toluenesulfonic acid ngaphandle kwesidingo sokuphatha okuqinile kwe-hygroscopic anhydrous.

Izicelo Ezinkulu

1. I-Organic Synthesis Catalyst

• Ukusabela kwe-Esterification: Kusiza ukwakheka kwama-ester asuka kuma-carboxylic acid nama-alcohols.

• I-Acetalization & ketalization: Isetshenziselwa ukuvikela amaqembu e-carbonyl kuma-syntheses wezinyathelo eziningi.

• Ukuhlangana kwe-Peptide: Kusebenza njenge-ejenti esebenzayo kumaphrothokholi athile okwenziwa kwe-peptide.

2. Imboni yePolymer & Resin

• Ukukhiqizwa kwe-Polyester: Icubungula ukusabela kwe-polycondensation ekwenzeni ama-polyester angagcwele kanye nama-alkyd resins.

• I-Epoxy curing accelerator: Ithuthukisa ukuxhumanisa kumasistimu e-epoxy.

3. Abalamuli Bezemithi

• I-catalyst eyinhloko ekuhlanganisweni kwezithako zemithi esebenzayo (ama-API) njengama-anticoagulants, ama-antiviral agents, nezidakamizwa ezilwa nokuvuvukala.

• Isetshenziswa ekukhiqizeni usawoti we-tosylate ukuthuthukisa ukunyibilika kwezidakamizwa kanye ne-bioavailability.

4. Opende, Izigqoko & Oyinki

• Iphromotha ukusabela okuhlanganayo kwezingubo ezisuselwe ku-melamine.

• Ithuthukisa ubulukhuni nokumelana kwamakhemikhali kwezingubo zezimboni.

5. Imboni ye-Electroplating & Dye

• Isebenza njengesengezo sokulungisa i-asidi yokugeza futhi ithuthukise ikhwalithi yokubeka insimbi.

Izinzuzo Zokusebenzisa i-PTSA Monohydrate

• I-asidi enamandla enokugqwala okuphansi uma iqhathaniswa nama-asidi amaminerali (isb., H₂SO₄, HCl).

• Kulula ukuphatha - okungeyona i-oxidizing, okuqinile kwecrystalline.

• Ukukhetha okuphezulu ekuphenduleni kwe-asidi-catalyzed, ukunciphisa imikhiqizo eseceleni.

• Ingaphinde isetshenziswe ezinqubweni eziningi zezimboni.

• Izimo zokusabela ezithambile zinciphisa ukusetshenziswa kwamandla nokuguga kwemishini.

Ukupakishwa Okujwayelekile Nokunikezela

• 25 kg izigubhu zefayibha ezine-PE liner yangaphakathi

• 500 kg izikhwama ezilukiwe

• Ukupakishwa ngokwezifiso (1 kg, 5 kg, 10 kg) kwe-R&D namasampuli ngelebhu

I-Aozunchem inikeza ukunikezwa okuthembekile kwe-p-Toluenesulfonic acid monohydrate ngokulawula okuqinile kwekhwalithi (i-HPLC, i-titration, ukuhlaziywa komswakama). Iqoqo ngalinye lihlanganisa Isitifiketi Sokuhlaziya (COA).

Imibuzo Evame Ukubuzwa (FAQs)

Q1: Uyini umehluko phakathi kwe-p-Toluenesulfonic acid monohydrate kanye nefomu le-anhydrous?
I-monohydrate iqukethe amanzi owodwa we-crystallization. Ayina-hygroscopic, kulula ukuyikala nokuyigcina, futhi inephuzu lokuncibilika elichaziwe. Ezinhlelweni eziningi ze-catalytic, womabili amafomu angasetshenziswa ngokulinganayo (ngemuva kokulungiswa kokuqukethwe kwamanzi). I-monohydrate ikhethwa kulabhu evamile kanye nokusetshenziswa kwezimboni ngenxa yokuphatha kalula.

Q2: Ingabe i-PTSA monohydrate iyagqwala?
Yebo, iyi-asidi ephilayo eqinile. Ingabangela ukucasuka okukhulu kwesikhumba namehlo futhi idle izinsimbi. I-PPE efanele (amagilavu, izibuko, ijazi laselabhu) kanye nokukhipha umoya kufanele kusetshenziswe. Gwema ukuthintana nezisekelo eziqinile, ama-oxidizing, nezinsimbi ezisebenzayo.

Q3: Yimuphi umthamo ojwayelekile njenge-catalyst ku-esterification?
Ngokuvamile i-0.5-5 mol% ngokuhlobene ne-reagent ekhawulayo. Inani eliqondile lincike kuma-substrates kanye nezinga lokushisa lokusabela. Kuma-polyesterification amaningi, i-1-3 wt% yanele.

Q4: Ngingakwazi yini ukuncibilikisa i-PTSA monohydrate kuma-organic solvents?
Yebo. Incibilika kalula kuma-alcohols (i-methanol, i-ethanol, i-isopropanol), i-acetonitrile, i-ethyl acetate, i-acetone, ne-dioxane. Inoncibilika okulinganiselwe kuzincibilikisi ezingapholi njenge-hexane noma i-toluene, kodwa i-toluene efudumele kancane ivamise ukusebenza ngokushukumisa.

Q5: Kufanele ngiyigcine kanjani i-p-Toluenesulfonic acid monohydrate?
Gcina esitsheni esivalwe ngokuqinile endaweni epholile, eyomile (≤30 °C) kude nelanga eliqondile. Gwema umswakama, izisekelo eziqinile, nama-oxidizing agents. Ngaphansi kwezimo ezifanele, impilo yeshalofu okungenani yizinyanga ezingama-24.

Q6: Ingabe lo mkhiqizo usohlwini ngaphansi kwanoma yiziphi iziqalo zokulawula?
Yebo. I-p-Toluenesulfonic acid monohydrate ibhaliswe ku-TSCA (US), EINECS (EU), ECL (Korea), IECSC (China), nakwezinye izikhungo zamakhemikhali ezinkulu. Akuyona into ekhawulelwe ngaphansi kwe-REACH uma isetshenziswa njengendawo emaphakathi noma njenge-catalyst.

Q7: Kuyini okuqukethwe kwamanzi efomini le-monohydrate?
Okuqukethwe kwamanzi okucatshangelwayo kungu-~9.5% (imvukuzane engu-1 ye-H₂O imvukuzane ngayinye ye-PTSA). Amanani okuhlaziya okuyiwona asuka ku-9.0–10.0% kuye ngezimo zesitoreji.

I-Q8: Ngingasebenzisa i-PTSA monohydrate ekuphenduleni kokususa amanzi e-azeotropic?
Yebo. Amanzi avela ku-monohydrate angasuswa nge-Dean-Stark trap noma nge-azeotropic distillation nge-toluene, benzene, noma i-xylene. Ukuze uthole ukusabela okungezwani namanzi, sebenzisa ifomu le-anhydrous noma wenze isinyathelo sokuqala sokumisa.

Q9: Ingabe kuphephile ukuthunyelwa?
Ihlukaniswe njenge-Class 8 okuqinile okubolayo (UN 2585, iqembu lokupakisha III). Ukuthumela kudinga ukulebula okufanelekile kwengozi kanye nemibhalo, kodwa akuqhumi noma akunaphimbo.

Q10: Ingabe unikeza amasampula mahhala?
Yebo, i-Aozunchem ihlinzeka ngamasampula zelebhu amahhala (5–10 g) okuhlolwa kwe-R&D okufanelekile. Izimali zokuthumela zingasebenza. Sicela usithinte ukuze ucele isampula.

Xhumana nathi

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