Ethyl Alcohol

Product Information

Ethanol, commonly known as alcohol, fire wine, is a kind of Hydrocarbon Compounds, the chemical formula is C2H6O, the structure of the simple formula for CH3CH2OH or C2H5OH.Ethanol burns well and is commonly used as a fuel, solvent, disinfectant, etc. It is widely used in organic synthesis.
Ethanol at room temperature and pressure is a volatile colorless transparent liquid, low toxicity, can be mutually soluble with water in any ratio, the solution has a wine flavor, slightly irritating, but also miscible with most organic solvents. Ethanol vapor mixed with air can form explosive mixtures. Ethanol is a basic organic chemical raw materials, also used as organic solvents, beverages, wine and food industry.
Ethanol can be used in the manufacture of acetic acid, beverages, flavors, dyes, fuels, etc., medical commonly used volume fraction of 70% to 75% of ethanol as a disinfectant. Ethanol has a wide range of uses in the chemical industry, health care, food industry, agricultural production and other fields.
The physical properties of ethanol are mainly related to the nature of its low carbon straight chain alcohols. The hydroxyl groups in the molecule can form hydrogen bonds, so ethanol is deliquescent and can quickly absorb water from the air. The presence of intermolecular hydrogen bonds also allows ethanol to have a higher boiling point than alkanes of similar relative molecular mass. The polarity of the hydroxyl groups in the ethanol molecule makes many ionic compounds soluble in ethanol, such as sodium hydroxide, potassium hydroxide, magnesium chloride, calcium chloride, ammonium chloride, ammonium bromide, and sodium bromide; however, sodium chloride and potassium chloride are slightly soluble in ethanol. The non-polar hydrocarbon group makes ethanol soluble in some non-polar substances as well, such as most essential oils and many flavor enhancers, color enhancers, and pharmaceutical reagents.

The main types of ethanol
1. According to the raw materials used in production can be divided into starchy raw material fermentation alcohol, molasses raw material fermentation alcohol, sulfite pulp waste fermentation production alcohol.
Starchy raw materials fermentation alcohol (generally have potato, cereals and wild plants and other starchy raw materials, under the action of microorganisms will be hydrolyzed starch into glucose, and then further by the yeast fermentation to produce alcohol);
Molasses raw material fermentation alcohol (directly use the sugar in molasses, after dilution and sterilization and add some nutrient salts, borrow the role of yeast fermentation to generate alcohol);
Sulphited pulp waste fermentation to produce alcohol (the use of paper waste contained in the six-carbon sugar, fermented into alcohol under the action of yeast, the main product for industrial alcohol. There are also alcohol made from dilute acid hydrolysis of wood chips).
2. According to the method of production, can be divided into two categories: fermentation, synthesis.
3. According to the quality or nature of the product, it is divided into high purity alcohol, anhydrous alcohol, ordinary alcohol and denatured alcohol.

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(1)Water Treatment:The way of water treatment includes physical treatment and chemical treatment. Human water treatment methods have been quite a few years of history, physical methods, including the use of a variety of different pore size of the filter material, the use of adsorption or barrier way, the impurities in the water outside, adsorption method in the more important for the adsorption of activated carbon, barrier method is to pass the water through the filter material, so that the impurities of a larger size can not pass, and thus obtain cleaner water.

(2)Catalysts and Auxiliaries：A catalyst is a substance that changes the rate of reaction in a chemical reaction while its own composition and quality remain unchanged after the reaction. A catalyst that speeds up a reaction is called a positive catalyst (Positive Cata-lyst), and one that slows it down is called a negative catalyst (Negative Catalyst) or retardant. Generally speaking, catalysts are positive catalysts.

Auxiliary agent refers to the industrial and agricultural production, especially in chemical production, in order to improve the production process, improve product quality and yield, or to give the product some unique application performance, usually need to add some auxiliary chemicals. It is a large class of important auxiliary raw materials in chemical production, can give the product with special properties, improve the use of finished products; can accelerate the speed of chemical reaction, improve product yield; can save raw materials, improve processing efficiency, widely used in the chemical industry.