Dimethyl sulfone (Methyl sulfone), also known as MSM or methylsulfonylmethane, is an organic sulfide with the molecular formula C2H6O2S and a molecular weight of 94.13. The following is a detailed product introduction of dimethyl sulfone:

1. basic information

CAS No.: 67-71-0

　　EINECS号：200-665-9

Molecular formula: C2H6O2S

Appearance: usually white needle-like crystals or crystalline powder, sometimes also presented as white powder.

Physical properties:

Melting point: 107-111°C (may vary slightly from source to source)

Boiling point: 238°C

Flash Point: 290 °F

1.16g/cm³

Refractive index: 1.4226

Water solubility: 150g/L (20°C), soluble in water, ethanol, benzene, methanol and acetone, slightly soluble in ether and chloroform.

2. chemical properties

Dimethyl sulfone is a stable compound, but can react with strong oxidants under certain conditions. The storage conditions should be lower than 30°C, and should be kept in a cool and dry place protected from light, avoid contact with skin and eyes.

3. preparation method

The preparation methods of dimethyl sulfone mainly include the following:

Nitric acid oxidation method: dimethyl sulfoxide is oxidized with nitric acid at 140-145 ° C. After the reaction, it is cooled and filtered to obtain a crude product of white needle-like crystals, which is then distilled under reduced pressure to collect the finished product.

Ultraviolet irradiation oxidation method: the oxygen by ultraviolet irradiation, into the dimethyl sulfoxide solution, under ultraviolet irradiation oxidation reaction, the formation of dimethyl sulfone with ice brine frozen to make crystallization precipitation.

Hydrogen peroxide oxidation method: dimethyl sulfoxide into the reaction kettle, heated to 90-100 DEG C, dropwise with hydrogen peroxide reaction, after the end of the reaction filtration, cooling, centrifugal separation of fine products.

4. uses and applications

Dimethyl sulfone has a wide range of uses, mainly including the following aspects:

Medical field:

As a health care product: dimethyl sulfone is a necessary substance for the synthesis of human collagen and is essential for maintaining the balance of biological sulfur elements in the human body. It can eliminate viruses, strengthen blood circulation, soften tissues, relieve pain, strengthen muscles and bones, calm the spirit, enhance physical strength, and have auxiliary therapeutic effects on arthritis, oral ulcers, asthma, constipation and other diseases.

Pharmaceutical raw materials: In pharmaceutical manufacturing, dimethyl sulfone can be used in health food, base material, filler, biological drugs, etc.

Food industry: dimethyl sulfone can be used as a food additive for dairy food, meat food, baking food, flour food, all kinds of beverages, candy, seasoning food, etc., to supplement nutrition and improve physical fitness.

Industrial areas:

Organic synthesis raw materials: dimethyl sulfone is used as a high-temperature solvent and raw material for organic synthesis in industry, and is used for gas chromatography stationary liquid, analytical reagents, etc.

Oil industry and manufacturing: It is also used in the oil industry and manufacturing industry.

Daily chemical products: dimethyl sulfone can be used in facial cleanser, beauty cream, lotion, shampoo, toothpaste, shower gel, facial mask and other daily chemical products, with whitening, skin care and other effects.

Feed veterinary drugs: In the field of feed veterinary drugs, dimethyl sulfone can be used for pet canned, animal feed, nutritional feed, genetically modified feed research and development, aquatic feed, vitamin feed, veterinary drug products, etc.

5. market prospects

As a high-tech product and high value-added fine chemical product, dimethyl sulfone has broad prospects for production and application development. In foreign countries, dimethyl sulfone has been widely used in the field of health products and medicine, and has been highly valued by developed countries. In China, although the application research of dimethyl sulfone has not been fully carried out, with the increase of people's demand for health and nutrition, the market potential of dimethyl sulfone is huge, and it is expected to be more widely used and promoted in the future.