|
Product Details:
|
P Toluenesulfonic Acid 25 KG/BAG CAS 104-15-4 Used in Plastics and Printing Coatings
Product Name:P Toluenesulfonic Acid
Color: White
Molecular Formula: C7H8O3S
Molar Mass: 172.2
Melting Point: 106~107℃
Boling Point: 116 °C
Flash Point: 41 °C
Water Solubility: soluble
Storage Condition: Inert atmosphere, Room Temperature
Refractive Index: 1.3825-1.3845
UN IDs: 2585
HS Code: 29163990
Hazard Class: 8
Packing Group: III
Raw Materials: Methyl alcohol Sulfuric acid
Downstream Products: dodecyl benzenesulfonic acid, sodium salt
P-Toluenesulfonic Acid (Molecular Structure: p-CH3C6H4SO3H, also written in TsOH, English P-Toluene Sulfonic acid) abbreviated PTS, is a non-oxidizing organic strong acid, white needle-like or powder-like crystals, soluble in water, alcohols and other polar solvents. Easy deliquescence, easy to make wood, cotton fabric dehydration and carbonization, difficult to dissolve in benzene and toluene. P-cresol is generated during alkali fusion. P-Toluenesulfonic Acid is industrially prepared by sulfonating toluene with concentrated sulfuric acid. The obtained P-Toluenesulfonic Acid often contains benzene sulfonic acid and sulfuric acid impurities, which can be purified by recrystallizing the impure sample in concentrated hydrochloric acid and then azeotropic drying.
| Items | Technical grade | Pharma grade | Refine grade | Reagent grade | Electronic grade |
| Assay (as C7H8O3S·H2O)≥% | 93 | 95 | 97 | 99 | 99.9 |
| Free acid (as H2SO4) ≤% | 3 | 2 | 0.7 | 0.1 | 0.03 |
| Moisture≤% | 4 | 3.5 | 2.3 | 0.9 | 0.1 |
| Fe content≤ppm | 50 | 30 | 20 | 10 | 1 |
| Residue on ignition ≤% | / | 0.2 | 0.2 | 0.02 | 0.02 |
| Dissolve test of ethanol | / | Qualified | Qualified | Qualified | Qualified |
| Dissolve test of water | / | Qualified | Qualified | Qualified | Qualified |
| Main metal ions ≤ppm | / | / | / | / | 1 |
Prepared by sulfonation using toluene as a raw material and heating and boiling with sulfuric acid. The mother liquor of the production process contains uncrystallized methyl benzene sulfonic acid and free sulfuric acid. After neutralization, sodium methylbenzenesulfonate can be produced.
P-Toluenesulfonic Acid is a strong organic acid with no oxidizing properties, and its acidity is one million times that of benzoic acid. White needle-like or powder crystals, easily deliquescent, soluble in water, alcohol, and other polar solvents. It is made of toluene and chlorosulfonic acid under low temperatures. P-toluenesulfonic acid is widely used in the synthesis of pharmaceuticals, pesticides, polymerization stabilizers and organic synthesis (esters, etc.) catalysts. Used as an intermediate for medicines and coatings and as a resin curing agent, as well as an intermediate for electroplating.
Company Profile:
Guangzhou Hongzheng Trade Co., Ltd. was established in 2006 and has more than 16 years of operation, storage and transportation of chemical raw materials. Located in the land, sea and air transportation center of South China, Guangzhou is known as the "South Gate of China to the World".
Over the years, with the core value of "loyalty, truth-seeking, innovation, and win-win", our company has been deeply engaged in the chemical industry market, striding forward to the goal of green, environmental protection and high technology, and committed to becoming a flagship enterprise in the field of chemical trade.
At present, our company has set up lots of warehouses around China, established a highly advantageous supply and marketing, distribution system, to provide customers with emergency services to the maximum extent. We provide high-quality services to many well-known enterprises in China.
Contact Person: Jessic
Tel: +86 13928889251
Fax: 86-020-22307821
