nature Hydroxypropyl methacrylate (HPMA) is a commonly used polymer material. 1. Appearance: The appearance of hydroxypropyl methacrylate is a colorless transparent liquid 2. Solubility: Soluble in water and also in most organic solvents, such as alcohols, ethers, esters, and aromatics. 4. Density: The density of hydroxypropyl methacrylate is 1.11-1.18 g/cm3. 6. Chemical stability: It has good chemical stability, is not easy to decompose, and will not react with most chemical substances. 7. Thermal stability: Hydroxypropyl methacrylate has good thermal stability, and its thermal stability is relatively high at high temperatures. 8. Oxidation stability: It has a certain resistance to oxidation and is not prone to oxidation and deterioration. Preparation 1. Add initiators such as hydroxypropyl methacrylate (HPMA) and hydrogen peroxide to the reactor, as well as an appropriate amount of solvents (such as methanol, ethanol, etc.). 2. Seal and shake the reaction kettle or heat it to react, causing the initiator to crack at an appropriate temperature, resulting in free radical polymerization of HPMA. After the reaction is completed, precipitate or precipitate the product with acidic water or organic solvents. 4. Filter and collect the product, wash and dry to obtain the pure product. The above is a simple preparation process for hydroxypropyl methacrylate, and the specific operating parameters and process flow may vary depending on different preparation methods and requirements. application 1. Paint and ink industry: it can be added to paint and ink as lotion and diluent to improve its viscosity, rheology and adhesion. 2. Cosmetics: Can be used in cosmetic products, such as hair gel, curling agents, sunscreen, etc., to thicken, moisturize, and prevent sun damage. 3. Daily necessities: It can be added as a thickener to daily necessities, such as detergents, facial cleansers, toothpaste, etc. 4. Pharmaceutical field: It can be used in drug sustained-release systems, such as artificial joint lubricants or eye drops for injection. In the future, with the continuous development of technology, the application prospects of hydroxypropyl methacrylate will become increasingly broad. For example, in the fields of biomedicine and drug delivery, cell delivery, and the preparation of nanomaterials, polymer materials such as hydroxypropyl methacrylate are also useful

Name:  Heptamethyldisilazane CAS No.:  920-68-3 Molecular formula: C7H21NSi2 Molecular weight: 175.42 UN Number: 2924 Product standard: HG/T 5797-2021 Appearance: Colorless transparent liquid

Name: Methyldiphenylchlorosilane CAS No.: 144-79-6 Appearance: Colorless transparent irritating liquid Molecular weight: 232.78 Relative density: 1.107 Purity: ≥ 98.0% Flash point: 230 ℃ Boiling point: 295 ℃ Melting point: -22 ℃ Refractive index nD20:1.6480

Name:  Chlorodimethylphenylsilane CAS No.:  768-33-2 Appearance: Colorless or light yellow liquid Molecular weight: 170.71 Relative density: 1.032 Purity: ≥98.0% Flash point: 61℃ Boiling point: 198℃ Melting point: ＜0℃ Refractive index nD20:1.506-1.510

Specification English name: Dimethyldimethoxysilane CAS number: 1112-39-6 Molecular formula: C4H12O2Si Molecular weight: 120.22 EINECS number: 214 189 4 Mol file: 1112-39-6.mol Applications As a structural control agent, chain extender, and filler treatment agent, it is widely used in the treatment of organic silica gel and white carbon black Purpose As a structural control agent, chain extender, and filler treatment agent, it is widely used in the treatment of organic silica gel and white carbon black. This product is used as a structural control agent and chain extender to improve mechanical processing performance, extend the storage time of rubber blends, and can replace hydroxyl silicone oil for use. Widely used in the treatment of organic silicone and white carbon black Purpose Dimethyldimethoxysilane is used as a structural control agent and chain extender to improve mechanical processing performance, extend the storage time of rubber blends, and can replace hydroxy silicone oil. Widely used in the treatment of organic silicone and white carbon black.

Name: Cilnidipine CAS No.: 132203-70-4 Appearance: light yellow powder Molecular formula: ight yellow Molecular Weight: 492.52 Melting point:97-99°C PACKAGE:5KG/TIN

Name: Epinephrine CAS No.: 51-43-4 Appearance: White crystalline powder Molecular formula: C9H13NO3 Molecular Weight: 183.204 Melting point:208 -211 ℃ PACKAGE:50g/200g/300g/tin

Name: L-valine CAS No.: 72-18-4 Appearance: White powder  Molecular formula: C5H11NO2 Molecular Weight: 117.15 Melting point:295-300 °C  PACKAGE:25KG/BAG

Name: Zinc Pyrithione CAS No.: 13463-41-7 Appearance: Grayish white to yellowish brown powder Molecular formula: C10H8N2O2S2Zn Molecular Weight: 317.722 Melting point:262ºC PACKAGE:25KG/BAG

Name:MONOPOTASSIUM PHOSPHATE(MPP) CAS No.:13977-65-6 Appearance: White crystals Molecular formula: KH2PO3 Molecular Weight: 120.086 PACKAGE:25KG/BAG

Name: Dipotassium Phosphate (DKP)K2HPO4 CAS No.: 7758-11-4 Appearance: White crystal powder Molecular formula: K2HPO4 Molecular Weight: 174.176 Melting point:340°C(lit.) PACKAGE:25KG/BAG