The main uses of vulcanizing agents, the uses of sulfuric acid What are the uses of sulfuric acid

1. It can be used as a softener, ion exchange regenerator, pH adjuster, oxidant and detergent for hard water. It can also be used in the manufacture of fertilizers, pesticides, dyes, pigments, plastics, chemical fibers, explosives and various sulfates. It is widely used in petroleum refining, non-ferrous metal smelting, iron and steel pickling, tanning process, coking industry, light textile industry, and national defense and military industry.

Strong acidic cleaning corrosives. It is mainly used for silicon wafer cleaning in the integrated circuit manufacturing process.

2. For the production of daily necessities, oleum sulfuric acid and concentrated sulfuric acid are required for the production of synthetic detergents. Plasticizers for plastics (such as phthalic anhydride and phthalates) and nitrocellulose wool, the raw material for celluloid products, all need sulfuric acid to prepare. Sulfuric acid is also used in the manufacture of cellophane and parchment paper.

In addition, the textile printing and dyeing industry, enamel industry, small hardware industry, soap industry, artificial fragrance industry and other production sectors also need to use sulfuric acid.

3. Sulfuric acid is used for sulfonation reaction in the preparation process of sulfonamide drugs in the pharmaceutical industry, and nitrification reaction in the preparation of the powerful fungicide nitrofuracillin. In addition, the preparation of many antibiotics, commonly used drugs such as aspirin, caffeine, vitamin B2, vitamin B12 and vitamin C, certain hormones, isoniazid, mercury bromide, saccharin, etc., do not require the use of sulfuric acid.

The functions and uses of stone sulfur mixture are as follows:

First, the role of stone sulfur mixture.

1. Insecticide. After the stone sulfur mixture is sprayed on the body surface of the pest, the polysulfide can be reduced to a solid sulfur balance source, which blocks the insect's air valve, making the insect unable to breathe and suffocating to death.

2. Sterilization. After the chemical reaction of stone sulfur mixture with oxygen, moisture, sulfur dioxide, etc. in the air, it produces fine sulfur (oxidation sterilization) precipitation and releases a small amount of hydrogen sulfide gas, which can destroy the physiological activities of pathogenic microorganisms, so that their normal physiological activities are out of control and die.

Second, the use of stone sulfur mixture.

1. Stone sulfur mixture can control aphids, red spiders, bacterial perforation, anthracnose, rust, brown spot, black pox and other pests and diseases.

2. The stone sulfur mixture is made by boiling lime and sulfur and water.

3. It is easy to generate free sulfur and calcium sulfate in the air, which needs to be sealed and stored, and the concentration of the liquid medicine should be determined according to the type of crop, growth period and temperature when used.

Stone sulfur mixture is suitable for crops

Stone sulfur mixture is mainly used in apples, citrus pears, peaches, grapes, jujube and other fruit trees, and can also be used for flowers, alfalfa, beans, wheat, tea trees, etc., mainly used to control leaf mites, rust mites, scale insects and other pests, as well as powdery mildew, rot disease, scab, resin disease and other diseases.

The product is a multi-functional rubber additives, which can be used as a vulcanizing agent in the process of rubber processing, as a vulcanizing agent for peroxide systems, and as an anti-scorching agent and tackifier, which is suitable for general rubber, and is also suitable for special rubber and rubber and plastic combined systems.

It is divided into two categories: inorganic and organic. The former category is sulfur, sulfur monochloride, selenium, tellurium, etc. The latter category includes accelerators containing sulfur jujube number (such as accelerator TMTD), organic peroxides (such as benzoyl peroxide), quinone oxime compounds, polysulfide polymers, ethyl carbamate, maleimide derivatives, etc.