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Optimization of the Design of High-Purity P-cresol Production Process

P-cresol Production

Cresol is mainly used in the synthesis of pharmaceuticals, pesticides, spices, etc., is an important raw material for fine chemicals. With the expansion of the use of p-cresol in the field of medicine and spices, the market demand for cresol product quality is higher and higher, many countries generally require p-cresol purity ≥ 99% (freezing point ≥ 34 ℃). The main synthetic methods of p-cresol are toluene sulfonation alkali melting method, phenol methylation method, isopropyl toluene method, p-toluidine method, etc.,…

N-Bromopropane (NPB)

n-Bromopropane (NPB)

CAS NO.:106-94-5 Appearance: Colorless transparent volatile liquid Specific gravity: 1.354 Melting point: -110°C Boiling point:70.9 Content: ≥99.5% Water content: ≤0.01% Chroma: ≤10APHA Free acid: ≤50ppm Refractive index: 1.4343 Vapor Pressure (Pa): 14.772(20℃); 18.438(25℃) Viscosity (20℃): 0.575 Packing: 250kg/200L/Drum Features Low ozone destruction index (ODP-0.019-0.027), low earth effect (GWP), in line with environmental requirements. High cleaning effectiveness, and high permeability, can be easily cleaned on microporous materials. Fast drying speed.4, low hydrolysis, even if the generation of hydrobromic acid corrosion, also…

Introduction to γ-Butyrolactone


1,4-Butyrolactone,γ-Butyrolactone Highly pure medical grade. Food grade. Purity 99.95%250ml  Properties Non-toxic and transparent oily liquid, completely soluble in water, soluble in ethanol, ether, benzene and acetone, soluble in many organic and inorganic compounds. It is decomposed in hot alkali solution. It is a solvent with high boiling point, strong solubility, good electrical properties and stability. It is safe and easy to use. It has an aromatic odor. It is hygroscopic. Evaporates with water vapor. Density: 1.12 Melting point: -45℃. Boiling…

Preparation of Benzaldehyde


I. Product Nature. Formaldehyde is widely found in the plant kingdom, especially in the Rosaceae family, mainly in the form of glycosides in the stem bark, leaves, or seeds of plants, such as amygdalin in bitter almonds. Benzaldehyde occurs naturally in essential oils such as bitter almond oil, patchouli oil, hyacinth oil, ylang ylang oil, etc. It is sometimes called bitter almond oil. It is sometimes called bitter almond oil. The pure product is a colorless liquid. Physical properties: Appearance…

Cyclohexylamine – Safety Data Sheet(MSDS)


Part Ⅰ:Chemical Name English Name: cyclohexylamine English name 2: hexahydroaniline Technical Specification Code: 294 CAS No.: 108-91-8 Molecular formula: C6H13N Molecular Weight: 92.19 Part II: Composition/Composition Information Harmful Ingredients: Cyclohexylamine Content:≥98.5% CAS No.:108-91-8 Part III: Hazards Overview Hazard Category: Intrusion Route: Health hazards: Acute poisoning can occur when inhaling the vapors of this product. Signs of poisoning include severe vomiting and diarrhea; dilated pupils and unresponsiveness to light, blurred vision, malaise, and speech disorders. In human patch tests, 25% of…

Trichloroisocyanuric Acid (TCCA)

Trichloroisocyanuric Acid (TCCA)

The scientific name of Trichloro-s-Triazine Trione (TCCA) is one of a series of chlorinated isocyanuric acid products. TCCA is widely used in bleaching, disinfection, sterilization and wool shrinkage prevention. Physical and chemical properties of the product (the composition of the product conforms to ZBG16009-89 standard) Molecular weight: 232.41 Active chlorine content:≥90% Water content:≤0.5% PH value of 1% solution:2.7~3.3 Solubility(g/100g water)1.2 LD50:750mg/kg Appearance: 20 grams, 200 grams of tablets (slow-release type) Packing: 25 kg, 50 kg plastic drum (lined with plastic…