p-Toluenesulfonic Acid Monohydrate (CAS 6192-52-5) - Babban Mai Kariya mai Tsabta & Matsakaicin Halitta

Bayanin Samfura

p-Toluenesulfonic acid monohydrate (PTSA monohydrate, Tosylic acid monohydrate) wani acid mai karfi ne na kwayoyin halitta wanda aka yi amfani da shi sosai a matsayin mai kara kuzari a cikin esterification, acetalization, da halayen motsa jiki.

• Lambar CAS: 6192-52-5

• Tsarin kwayoyin halitta: C₇H₈O₃S · H₂O

• Nauyin Kwayoyin Halitta: 190.22 g/mol

• Tsafta: ≥99.0% (HPLC)

• Matsayin narkewa: 103-106 ° C (tare da lalata)

• Bayyanar: Fari zuwa kashe-fari crystalline m

• Adana: Ajiye a cikin sanyi, bushe, wuri mai kyau; kauce wa danshi da karfi oxidizers.

Maɓalli Properties

PTSA monohydrate ba mai jujjuyawa ba ce kuma tana da tsayin daka a ƙarƙashin yanayin dauki na yau da kullun. Yana aiki azaman tushen tushen p-toluenesulfonic acid ba tare da buƙatar ɗaukar ƙarfi na hygroscopic anhydrous ba.

Manyan Aikace-aikace

1. Organic Synthesis Catalyst

• Halayen Esterification: Yana sauƙaƙe samuwar esters daga acid carboxylic da alcohols.

• Acetalization & ketalization: Ana amfani da shi don kare ƙungiyoyin carbonyl a cikin haɓakar matakai da yawa.

• Peptide coupling: Yana aiki azaman wakili mai kunnawa a cikin wasu ka'idojin haɗin peptide.

2. Polymer & Resin Industry

• Samar da Polyester: Yana haɓaka halayen polycondensation a cikin kera na polyester marasa ƙarfi da resin alkyd.

• Epoxy curing accelerator: Yana haɓaka haɗin kai a cikin tsarin epoxy.

3. Matsakaicin Magunguna

• Maɓalli mai haɓakawa a cikin haɗakar da kayan aikin magunguna masu aiki (APIs) kamar su maganin ƙwanƙwasa jini, magungunan rigakafi, da magungunan hana kumburi.

• An yi amfani da shi wajen samar da gishirin tosylate don inganta narkewar ƙwayoyi da bioavailability.

4. Fenti, Rufi & Tawada

• Yana haɓaka halayen haɗin gwiwa na suturar tushen melamine.

• Inganta taurin da juriya na sinadaran masana'antu.

5. Electroplating & Rini Masana'antu

• Yana aiki azaman ƙari don daidaita acidity na wanka da haɓaka ingancin jibin ƙarfe.

Fa'idodin Amfani da PTSA Monohydrate

• Ƙarfin acidity tare da ƙananan lalata idan aka kwatanta da ma'adinai acid (misali, H₂SO₄, HCl).

• Sauƙi don rikewa - mara oxidizing, barga mai ƙarfi.

• Babban zaɓi a cikin halayen acid-catalyzed, rage girman samfuran gefe.

• Maimaituwa a cikin hanyoyin masana'antu da yawa.

• Yanayin amsawa mai sauƙi yana rage yawan kuzari da lalacewa na kayan aiki.

Marufi & Kayyade Na Musamman

• 25kg fiber ganguna tare da ciki PE liner

• 500 kilogiram ɗin saƙa

• Marufi na al'ada (1 kg, 5 kg, 10 kg) don R&D da samfuran lab

Aozunchem yana ba da ingantaccen wadatar p-Toluenesulfonic acid monohydrate tare da ingantaccen iko (HPLC, titration, nazarin danshi). Kowane tsari ya ƙunshi Takaddun Takaddun Bincike (COA).

Tambayoyin da ake yawan yi (FAQs)

Q1: Menene bambanci tsakanin p-Toluenesulfonic acid monohydrate da nau'in anhydrous?
monohydrate ya ƙunshi ruwa ɗaya na crystallization. Yana da ƙarancin hygroscopic, sauƙin aunawa da adanawa, kuma yana da ma'anar narkewa. Don yawancin aikace-aikacen catalytic, ana iya amfani da nau'i biyu daidai (bayan daidaitawa don abun ciki na ruwa). An fi son monohydrate a cikin dakin gwaje-gwaje na yau da kullun da amfani da masana'antu saboda dacewa da kulawa.

Q2: Shin PTSA monohydrate yana lalata?
Ee, yana da ƙarfi Organic acid. Yana iya haifar da mugunyar fata da haushin ido kuma yana lalata ƙarfe. Ya kamata a yi amfani da PPE da ya dace (safofin hannu, tabarau, rigar lab) da samun iska. Kauce wa tuntuɓar tushe mai ƙarfi, abubuwan da ke haifar da iskar oxygen, da ƙarafa masu amsawa.

Q3: Mene ne na hali sashi a matsayin mai kara kuzari a esterification?
Yawancin lokaci 0.5-5 mol% dangane da iyakance reagent. Matsakaicin adadin ya dogara da ma'auni da zafin jiki. A yawancin polyesterifications, 1-3 wt% ya isa.

Q4: Zan iya narkar da PTSA monohydrate a cikin kwayoyin kaushi?
Ee. Yana da sauƙin narkewa a cikin alcohols (methanol, ethanol, isopropanol), acetonitrile, ethyl acetate, acetone, da dioxane. Yana da ƙayyadaddun solubility a cikin abubuwan kaushi marasa ƙarfi kamar hexane ko toluene, amma toluene mai ɗanɗano kaɗan yana aiki tare da motsawa.

Q5: Ta yaya zan adana p-Toluenesulfonic acid monohydrate?
Ajiye a cikin akwati da aka rufe sosai a cikin sanyi, busasshiyar wuri (≤30 ° C) nesa da hasken rana kai tsaye. Ka nisantar da danshi, tushe mai ƙarfi, da abubuwan da ke haifar da iskar oxygen. A ƙarƙashin yanayin da ya dace, rayuwar shiryayye shine aƙalla watanni 24.

Q6: Shin wannan samfurin an jera shi a ƙarƙashin kowane kayan ƙirƙira?
Ee. p-Toluenesulfonic acid monohydrate an yi rajista a cikin TSCA (US), EINECS (EU), ECL (Koriya), IECSC (China), da sauran manyan masana'antun sinadarai. Ba ƙuntataccen abu ba ne a ƙarƙashin REACH lokacin amfani da shi azaman matsakaici ko mai kara kuzari.

Q7: Menene abun ciki na ruwa na nau'in monohydrate?
Abun cikin ruwa na ka'idar shine ~9.5% (mole 1 na H₂O kowace mole na PTSA). Haƙiƙanin ƙididdiga na ƙididdigewa suna daga 9.0-10.0% dangane da yanayin ajiya.

Q8: Zan iya amfani da PTSA monohydrate a cikin halayen kawar da ruwa azeotropic?
Ee. Ana iya cire ruwa daga monohydrate ta tarkon Dean-Stark ko ta hanyar distillation azeotropic tare da toluene, benzene, ko xylene. Don amsawar ruwa, yi amfani da nau'in anhydrous ko aiwatar da matakin bushewa.

Q9: Shin yana da lafiya don jigilar kaya?
An ƙirƙira shi azaman mai ƙarfi mai ruɓani na 8 (UN 2585, rukunin shiryawa III). Jigilar kaya yana buƙatar daidaitaccen lakabin haɗari da takaddun shaida, amma ba fashewa ba ne ko pyrophoric.

Q10: Kuna bayar da samfurori kyauta?
Ee, Aozunchem yana ba da samfuran dakin gwaje-gwaje na kyauta (5-10 g) don ingantattun kimantawar R&D. Ana iya amfani da kuɗin jigilar kaya. Da fatan za a tuntuɓe mu don neman samfurin.

Tuntube Mu

Don farashi, takaddun bayanan fasaha (TDS/MSDS), ko tambayoyin marufi na al'ada, da fatan za a tuntuɓi:

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