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Production of p

Abstract. Toluene was sulfonated by gaseous sulfur trioxide to prepare p-toluenesulfonic acid.The effects of reaction temperature and toluene conversion on the isomer selectivities and the dynamic viscosity of the reaction mixture in a well-stirred tubular glass reactor of 4 cm diameter and 16 cm height were investigated.

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p

Everything new starts small and needs specific support during scale up and production. Chemos Co. KG is supplier for p-Toluenesulfonic acid 2-methoxyethyl ester. With over 25 years of experience in the fine chemical market Chemos is supporting research institutions and chemical companies in

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sodium toluene sulfonate, 12068

p-toluenesulfonic acid, sodium salt: para-toluenesulfonic acid, sodium salt: ar-toluenesulfonic acid, sodium salt (8CI) tosylate, sodium . Articles: PubMed:Increased proliferation and differentiation of pre-osteoblasts MC3T3-E1 cells on nanostructured polypyrrole membrane under combined electrical and mechanical stimulation.

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Solubilities of p

The solubilities of p-toluenesulfonic acid monohydrate (PTSAH2O) and sodium p-toluenesulfonate (NaPTS) in aqueous sulfuric acid solutions were investigated at a temperature range from 278.45 to 342.95 K. The experimental results showed that the solubilities of PTSAH2O and NaPTS in aqueous sulfuric acid solutions increased with temperature from 278.45 to 342.95 K and decreased with

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Sodium p

Sodium p-toluenesulfonate is a toluenesulfonate ester used in organic chemical reactions as an alkylating agent, non-oxidizing catalyst, intermediate for the synthesis of biologically active compounds, and supporting electrolyte for depositing polypyrrole membranes. American Elements can produce most materials in high purity and ultra high purity (up to 99.99999%) forms and follows applicable

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p

Currently, our production capacity, PTSA: 7000 MT/per year ;sodium p-toluene sulfonate:6000 MT/pear year.Having a long-term business relationship with lots of famous brand in domestic market, such as: Xinhua Pharmaceutical,Lukang Pharmaceutical and PG. 60% of our production are exported to America, Europe, Japan Southeast Asia, Mid East

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Material Safety Data Sheet

Registered Office: 403, 404, Delphi, 'B' wing, Powai, Mumbai - 400 076 +91-22-6680 3000 tel Hiranandani Business Park INDIA +91-22-6716 2244 fax. Carcinogenicity: p -Toluenesulfonic acid anhydrous Not listed as a carcinogen by ACGIH, IARC, NTP, orCA Prop 65.

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Simple Accordion with CSS jQuery by Soh Tanaka

p-Toluenesulfonic anhydride has been prepared from the acid salt by the use of thionyl chloride 3 and phosphorus pentoxide, 2 and from the acid or sodium salt by treatment with a mixture of phosphorus pentachloride and phosphorus oxychloride. 4 It also has been obtained by heating oxime p-toluenesulfonates, 5 by reaction of p-toluenesulfonic

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TOLUENE SULFONIC ACID, LIQUID, WITH MORE THAN 5% FREE

TOLUENE SULFONIC ACID, LIQUID, WITH MORE THAN 5% FREE SULFURIC ACID reacts exothermically with chemical bases (for example: amine, amides, and inorganic hydroxides). The reactions can generate dangerously large amounts of heat in small spaces. Dissolution in water or dilution of concentrated solutions with water may generate significant heat.

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Sulfonic acid

A sulfonic acid (or sulphonic acid) refers to a member of the class of organosulfur compounds with the general formula R−S(=O) 2 −OH, where R is an organic alkyl or aryl group and the S(=O) 2 (OH) group a sulfonyl hydroxide. As a substituent, it is known as a sulfo group.A sulfonic acid can be thought of as sulfuric acid with one hydroxyl group replaced by an organic substituent.

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p toluenesulfonic acid monohydrate, p toluenesulfonic acid

p toluenesulfonic acid monohydrate, Wholesale Various High Quality p toluenesulfonic acid monohydrate Products from Global Sodium Tripolyphosphate Suppliers and p toluenesulfonic acid monohydrate Factory,Importer,Exporter at Okchem.

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Sodium Formaldehyde Sulfoxylate Hydrate China Manufacturer

Sodium Formaldehyde Sulfoxylate Hydrate. CAS No. 149-44-0, the formula CH3NaO3S, white crystal. Fresh odorless, but soon out of the smell like garlic, case of acid quickly decomposed, soluble in water. Insoluble in anhydrous ethanol, ether, benzene, dark, cool and dry place, sealed, with toxicity, to avoid direct contact, is a chemical intermediates.

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p

p-Toluenesulfonic acid has been used to catalyze the formation of enamines; water is removed via azeotropic distillation. 18 The dehydration of primary nitro compounds by tosic acid provides access to nitrile oxides, which can subsequently engage in 1,3-dipolar cycloaddition reactions. 19 Oximes may be dehydrated to nitriles by heating with

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p

p-Toluenesulfonic acid Directory or List of p-Toluenesulfonic acid companies like p-Toluenesulfonic acid suppliers, manufacturers, exporters, importers, wholesalers, distributors, traders, dealers etc. Find details like Phone Numbers, major chemical items, business activities, certifications, business regions, year of establishment of

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Author: Subject: Sodium p

Jan 09, 2012Sodium p-toluenesulfonic acid I recently had some more success with my synthesis of toluene esulfonic acid; after refluxing 25ml each of concentrated sulfuric acid and toluene for two hours I had a clear, amber liquid. To prepare the sodium salt, a book I have says to dump the still-warm reaction mix into 100 ml of distilled water and add 15g

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System of Registries

p-Toluenesulfonic acid, sodium salt Valid: ECOTOX 4-Methylbenzenesulfonic acid, sodium salt Valid: 2012 CDR Benzenesulfonic acid, 4-methyl-, sodium salt Valid: ECOTOX p-Toluenesulfonic acid, Na salt Valid: ECOTOX Benzenesulfonic acid, 4-methyl-, sodium salt Valid: ECOTOX

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Tosyl

A toluenesulfonyl (shortened tosyl, abbreviated Ts or Tos) group is CH 3 C 6 H 4 SO 2.This group is usually derived from the compound tosyl chloride, CH 3 C 6 H 4 SO 2 Cl (abbreviated TsCl), which forms esters and amides of toluenesulfonic acid.The para orientation illustrated (p-toluenesulfonyl) is most common, and by convention tosyl refers to the p-toluenesulfonyl group.

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Solubilities of p

The solubilities of p-toluenesulfonic acid monohydrate (PTSAH2O) and sodium p-toluenesulfonate (NaPTS) in aqueous sulfuric acid solutions were investigated at a temperature range from 278.45 to 342.95 K. The experimental results showed that the solubilities of PTSAH2O and NaPTS in aqueous sulfuric acid solutions increased with temperature from 278.45 to 342.95 K and decreased with

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Information of Para

P-toluenesulfonic acid is widely used in the synthesis of pharmaceuticals, pesticides, polymerization stabilizers and catalysts of organic synthesis ( esters, etc.). For use as pharmaceuticals, paints, intermediates, and a resin curing agent, and also used as a plating intermediates.

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p

Corresponding Product List of p-Toluenesulfonic Acid Salts [Chemical Structural Class] Chemicals by Class. Sulfur Compounds [Chemical Structural Class] T0271 Sodium p-Toluenesulfonate. S0875 Suplatast Tosylate. T0937 Tetraethylammonium p-Toluenesulfonate. T0843 Tetramethylammonium p-Toluenesulfonate.

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Category:Reagents for organic chemistry

This category was created to provide a home for inorganic compounds (such as NaBH 4) that are widely used in stoichiometric quantities in organic chemistry, but widely used organic reagents (such as oxalyl chloride) may belong here also.This category is not for catalysts such as Pd.

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CN103420833B

Disclosed is a method for synthesizing malonate toluenesulfonic catalysis, chloroacetic acid as raw materials, the reaction, cyanation reaction, acidification, esterification and hydrolysis reaction to generate malonate acid dimethyl ester, which is the esterification reaction in the esterification reaction carried out catalysis p-toluenesulfonic acid, and recovery of the catalyst after the

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Technical Grade Para Toluene Sulfonic Acid Powder

Item code: ptsapara-toluene sulphonic acid powder Chemical formula: Appearance: off-white/ white powder. Free sulphate: max 1%. Assay: 99. 0% 1% Moisture: 10. 0% max Solubility: soluble in water and alcohol. Hygroscopicity: extremely hygroscopic Uses: Reaction catalyst. Hydrotropic agent. Sodium ptsa Sodium p-toluene sulphonate 50% is also available

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p

PTSA is white needle crystal or powder, soluble in water, alcohol and ether, easy deliquescence, easy to make the cotton fabric, wood, paper and other carbohydrates dehydration and carbonization, insoluble in benzene, toluene and xylene solvent such as benzene. Alkali fusion generated p-cresol. Organic acid with oxidation resistance.

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Zibo Like Chemical Group Co,.Ltd

Para toluene sulfonic acid mother liquor high purity p-toluene sulfonic acid mother liquor p-toluene sulfonic acid Weifang Youke CAS No:6153-56-6 Oxalic acid dihydrate 99.6% oxalic acid high purity oxalic acid CAS No:657-84-1 p-Toluenesulfonic acid sodium salt 78% sodium p-toluene sulfonate high quality sodium p-toluene sulfonate

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p

T0271 Sodium p-Toluenesulfonate. S0875 Suplatast Tosylate. T0937 Tetraethylammonium p-Toluenesulfonate. T0843 Tetramethylammonium p-Toluenesulfonate. A5014 TMPyP [=α,β,γ,δ-Tetrakis(1-methylpyridinium-4-yl)porphyrin p-Toluenesulfonate] [Ultra-high sensitive spectrophotometric reagent for Cu, Mg] [For the simultaneous determination of metals by HPLC]

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p

A p-TsOH-mediated 1,3-dipolar cycloaddition of nitroolefins and sodium azide for the synthesis of 4-aryl-NH-1,2,3-triazoles has been developed. p-TsOH was discovered as a vital additive in this type of 1,3-dipolar cycloaddition. This novel cycloaddition reaction is a good method for the rapid synthesis of valuable 4-aryl-NH-1,2,3-triazoles in high yields.

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