Molecular Formula | C3H7BrO |
Molar Mass | 138.99108 |
Density | 1.2g/mLat 25°C(lit.) |
Melting Point | 230℃ |
Appearance | Small Beads |
Color | Greenish brown |
Storage Condition | Indoors |
Sensitive | Hygroscopic |
Hazard Symbols | Xi - Irritant |
Risk Codes | 36 - Irritating to the eyes |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
WGK Germany | 3 |
HS Code | 39140000 |
Reference Show more | 1. Han Xiaodan, Hu juwu, Peng Huangqing, Hu Junxing. Study on deacidification and decolorization of medical camellia seed oil [J]. China Oil & Fat, 2020,45(11):9-13. 2. Zhang, Wei, et al. "Modification and synthesis of low pour point plant-based lubricants with ionic liquid catalysis." Renewable Energy 153 (2020): 1320-1329.https:// doi.org/10.1016/j. Renene.2020.02. 067 3. [IF = 8.001] Wei Zhang et al."Modification and synthesis of low pour point plant-based lubricants with ionic liquid catalysis."Renew Energ. 2020 Jun;153:1320 4. [IF=6.789] Juntao Xu et al."The conversion of linoleic acid into hydroxytetrahydrofuran-structured bio-lubricant."J Environ Manage. 2021 Aug;291:112692 |
Introduction | macroporous adsorption resin is a kind of macroporous adsorption resin without exchange group, it has a good macroporous network structure and large specific surface area, and can selectively adsorb organic compounds from aqueous solution through physical adsorption. It is a new type of organic polymer adsorbent developed in the 60s of the 20th century, medicine and other fields have been widely used. |
Application | macroporous adsorption resin has long been used in the purification of antibiotics, vitamins, amino acids, proteins, biochemical pharmacy. Application of macroporous resin separation, purification of natural product extract the earliest beginning in the late 20th century 70s. The results show that the macroporous adsorption resin has shown unique advantages in the purification of natural drugs, the separation and purification of the effective components and the effective parts of natural products, and the quality control of Chinese patent medicine. |
classification | macroporous adsorption resin skeleton structure mainly styrene, Acrylate, acrylonitrile, isobutylene, etc, paraffin wax, solvent gasoline, kerosene, carbon alcohol, polyvinyl alcohol, etc., dispersant gelatin, etc., cross-linking agent divinylbenzene, etc. Because of the difference of the skeleton, the polarity of the resin is also different, and it is usually divided into non-polar resin, weak polar resin and polar resin. |
adsorption principle | macroporous adsorption resin is based on styrene as monomer, adding divinylbenzene as crosslinking agent, toluene, xylene as porogen, they are cross-linked and polymerized to form a porous framework structure. Resin is generally white spherical particles, particle size of 20~60 mesh, is a kind of crosslinked polymer containing ion exchange group, its physical and chemical properties are stable, insoluble in acid, alkali and organic solvents, it is not affected by inorganic salts and strong ionic low molecular compounds. Resin adsorption is dependent on the van der Waals attraction between it and the adsorbed molecule (adsorbate), through its huge specific surface for physical adsorption and work, the organic compounds can be separated by a certain solvent elution according to the adsorption power and the molecular weight thereof to achieve different purposes such as separation, purification, impurity removal and concentration. |
Use | ion exchange resin used for separation. |