Factory Cheap Hot 2-Formylbenzenesulfonic Acid Sodium Salt - Ophthalic Acid – Subang
Factory Cheap Hot 2-Formylbenzenesulfonic Acid Sodium Salt - Ophthalic Acid – Subang Detail:
Structural Formula
Name: Ophthalic acid
Other name: 2-methyl benzoic acid; O-toluene acid
Molecular formula: C8H8O2
Molecular weight: 136.15
Numbering System
CAS Number: 118-90-1
EINECS: 204-284-9
HS code: 29163900
Physical Data
Appearance: white flammable prismatic crystals or needle crystals.
Content: ≥99.0% (liquid chromatography)
Melting point: 103 °C
Boiling point: 258-259 °C(lit.)
Density: 1.062 g/mL at 25 °C(lit.)
Refractive index: 1.512
Flash point: 148 °C
Solubility: Slightly soluble in water, easily soluble in ethanol, ether and chloroform.
Production Method
1. Obtained by catalytic oxidation of o-xylene. Using o-xylene as a raw material and cobalt naphthenate as a catalyst, at a temperature of 120°C and a pressure of 0.245 MPa, o-xylene continuously enters the oxidation tower for air oxidation, and the oxidation liquid enters the Chemicalbook stripping tower for concentration, crystallization, and centrifugation. Get the finished product. The mother liquor is distilled to recover o-xylene and part of o-toluic acid, and then discharge the residue. The yield was 74%. Each ton of product consumes 1,300 kg of o-xylene (95%).
2. The preparation method is that the o-xylene is continuously oxidized with air in the presence of a cobalt naphthenate catalyst at a reaction temperature of 120-125°C and a pressure of 196-392 kPa in an oxidation tower to obtain a finished product.
Product Usage
Uses are mainly used in the synthesis of pesticides, medicines and organic chemical raw materials. At present, it is the main raw material for the production of herbicides. Uses o-methylbenzoic acid is the fungicide pyrrolidone, fenoxystrobin, trifloxystrobin and the herbicide benzyl The intermediates of sulfuron-methyl can be used as organic synthesis intermediates such as pesticide bactericide phosphoramide, perfume, vinyl chloride polymerization initiator MBPO, m-cresol Chemicalbook, color film developer and so on.
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We always believe that one's character decides products' quality, the details decides products' high-quality ,together with the REALISTIC,EFFICIENT AND INNOVATIVE crew spirit for Factory Cheap Hot 2-Formylbenzenesulfonic Acid Sodium Salt - Ophthalic Acid – Subang , The product will supply to all over the world, such as: Roman, Johannesburg, Mumbai, We're your reliable partner in the international markets of our products and solutions. We focus on providing service for our clients as a key element in strengthening our long-term relationships. The continual availability of high grade solutions in combination with our excellent pre- and after-sales service ensures strong competitiveness in an increasingly globalized market. We're willing to cooperate with business friends from at home and abroad, to create a great future. Welcome to Visit our factory. Looking forward to have win-win cooperation with you.
By Roland Jacka from Libya - 2018.06.12 16:22
The customer service staff is very patient and has a positive and progressive attitude to our interest, so that we can have a comprehensive understanding of the product and finally we reached an agreement, thanks!
By Lorraine from Czech Republic - 2017.11.20 15:58