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hydrochloric acid

hydrochloric acid

Hydrochloric acid is an aqueous solution of hydrogen chloride (HCl), which is a strong inorganic acid with a wide range of industrial applications. Hydrochloric acid is a colorless and transparent liquid with a strong pungent odor and high corrosiveness. Concentrated hydrochloric acid (with a mass fraction of about 37%) has extremely strong volatility, so when the container containing concentrated hydrochloric acid is opened, the hydrogen chloride gas will evaporate and combine with water vapor in the air to produce small droplets of hydrochloric acid, causing acid mist to appear above the bottle mouth. Hydrochloric acid is the main component of stomach acid, which can promote food digestion and resist microbial infections.

nitric acid

Nitric acid is a strong acid with strong oxidizing and corrosive properties, belonging to the category of inorganic strong acids. It is one of the six major inorganic strong acids and an important chemical raw material. It can be used in industry to produce fertilizers, pesticides, explosives, dyes, salts, etc; In organic chemistry, a mixture of concentrated nitric acid and concentrated sulfuric acid is an important nitration reagent, and its aqueous solution is commonly known as nitrate solution or ammonia nitrogen solution. The hazard symbols are O (oxidizing agent) and C (corrosive).

sulphuric acid

Sulfuric acid is a lively binary inorganic strong acid that can react with the vast majority of metals. High concentration sulfuric acid has strong water absorption and can be used as a dehydrating agent to carbonize carbohydrate containing substances such as wood, paper, cotton and linen fabrics, and biological skin. When mixed with water, a large amount of heat energy is also released. It has strong corrosiveness and oxidizing properties, so it should be used with caution. It is an important industrial raw material that can be used to manufacture fertilizers, drugs, explosives, pigments, detergents, batteries, etc. It is also widely used in industries such as petroleum purification, metal smelting, and dyes. Commonly used as a chemical reagent, it can be used as a dehydrating agent and sulfonating agent in organic synthesis.

Sodium hydroxide (caustic soda)

Sodium hydroxide (caustic soda)

Commonly known as caustic soda, caustic soda, or caustic soda, it is a highly corrosive strong alkali that is generally in the form of flakes or particles. It is easily soluble in water (releases heat when dissolved in water) and forms an alkaline solution. It also has deliquescence and can easily absorb water vapor and carbon dioxide from the air. NaOH is one of the essential chemicals in chemical laboratories and is also a common chemical product.

Diaphragm liquid alkali (32%)

Diaphragm liquid alkali (32%)

Liquid alkali refers to sodium hydroxide in liquid form, also known as caustic soda or caustic soda. Due to different production processes, the concentration of liquid alkali in existing chlor alkali plants is usually 30-32% or 40-42%. Pure product is a colorless and transparent liquid. Relative density is 1.328-1.349, melting point is 318.4 ℃, boiling point is 1390 ℃. Pure liquid caustic soda is called liquid caustic soda, which is a colorless and transparent liquid. Industrial products often contain impurities, mainly sodium chloride and sodium carbonate, and sometimes a small amount of iron oxide. After dissolving into concentrated alkali, most impurities will float to the liquid surface and can be separated and removed.

Soda ash

Soda ash, scientific name sodium carbonate, commonly known as soda ash, rock alkali, and detergent alkali, belongs to the category of salts. Sodium carbonate, which contains ten crystal waters, is a colorless crystal. The crystal water is unstable and easily weathered, turning into a white powder Na2CO3. It is a strong electrolyte with salt like properties and thermal stability, easily soluble in water, and its aqueous solution is alkaline.

sodium bicarbonate

sodium bicarbonate

Commonly known as "baking soda", "baking soda powder", "heavy soda", it is a small white crystal with a lower solubility in water than sodium carbonate. The solid gradually decomposes above 50 ℃ to produce sodium carbonate, carbon dioxide, and water, and completely decomposes at 270 ℃.

Sodium sulfite/anhydrous sodium sulfite

Sodium sulfite/anhydrous sodium sulfite

Sodium sulfite, chemical formula Na2SO3, common sulfite, white, monoclinic crystal or powder. It has a stimulating effect on the eyes, skin, and mucous membranes, and can contaminate water sources. Toxic sulfide smoke is produced by high thermal decomposition. In industry, it is mainly used to produce cellulose sulfite, sodium thiosulfate, organic chemicals, bleached fabrics, etc. It is also used as a reducing agent, preservative, dechlorination agent, etc.

Sodium nitrite

Commonly known as nitrite, it is an inorganic salt formed by the ionization and formation of nitrite ions with sodium. Sodium nitrite is easily deliquescent and soluble in water and liquid ammonia. Its aqueous solution is alkaline with a pH of about 9 and is slightly soluble in organic solvents such as ethanol, methanol, and ether.

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