What is the classification of chemical raw materials and chemical raw materials

Chemical raw materials are used in chemical industry raw materials, used to produce chemical products, chemicals in the whole? 500 ~ 7 million as many as the circulation of the market has sold more than 100,000 species, and there are more than 1,000 kinds of New chemicals come out and 150 to 200 of them are considered carcinogens.

What is chemical raw materials

A wide range of chemical raw materials, uses a wide range. There are over 5 to 7 million kinds of chemicals on the market, more than 100,000 are sold and distributed in the market, and more than 1,000 new chemicals are available each year, of which 150 to 200 are considered carcinogens Things.

Chemical raw materials classification

1, chemical raw materials can generally be divided into two categories according to the material source of organic chemical raw materials and inorganic chemical raw materials.

(1) organic chemical raw materials

Alkanes and their derivatives, alkynes and derivatives, quinones, aldehydes, alcohols, ketones, phenols, ethers, anhydrides, esters, organic acids, carboxylic acids Salts, carbohydrates, heterocycles, nitriles, haloids, amine acyls and the like.

(2) Inorganic Chemical Materials

Inorganic chemical products are the main raw material containing sulfur, sodium, phosphorus, potassium, calcium and other chemical minerals (see inorganic salt industry) and coal, petroleum, natural gas and air, water and so on. In addition, by-products and waste from many industrial sectors are also raw materials for inorganic chemicals such as coke oven gas for the coking process in the iron and steel industry. The ammonia contained therein can be recovered from sulfuric acid to make ammonium sulfate, chalcopyrite, Sulfur dioxide from the smelter waste gas from mines and sphalerites can be used to produce sulfuric acid and the like.

2, according to the production process to points, can be divided into the starting material, the basic raw materials and intermediate materials.

(1) starting material

Starting materials are raw materials required for chemical production such as air, water, fossil fuels (ie coal, oil, natural gas, etc.), sea salt, various minerals, agricultural products (such as starchy foods or wild plants, Prime wood, bamboo, reed, straw, etc.).

(2) basic raw materials

The basic raw materials are processed starting materials, such as calcium carbide and various organic and inorganic materials listed above.

(3) the middle of raw materials

The middle of raw materials, also known as intermediate, generally refers to the complex organic chemical production, the use of basic raw materials to produce products, but not end-use products, but also need further processing. For example, the production of dyes, plastics and pharmaceuticals of various organic compounds: methanol, acetone, vinyl chloride and so on.

Chemical raw materials transportation

Dangerous goods are generally chemical raw materials, intermediates, products, transportation options mainly for the physical and chemical properties of related products to choose from, if it is a production, trade or logistics enterprises, the need to transport dangerous goods, we must first have the Product MSDS (Material Safety Data Sheets), the product is divided into three states: solid-liquid gas, solid state is generally only transported by fencing vehicles, the gas can only be stored by pressure cylinders or pressure tanks, and the liquid products are flexibly transported. Because of its relationship with temperature Large transport for it has the following options: the general viscosity of the barrels after the transport of rear hatchback or transport tanker transport; Viscosity and water close to the vapor pressure of small, non-corrosive chemicals used in ordinary atmospheric tanker transport; there Corrosive products can be transported in stainless steel tank trucks. Sulfur dioxide recovery and purification device