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Eucalyptus leaf oil is an aromatic essential oil secreted by the oil gland cells of eucalyptus leaves. It is a colorless oily liquid and is one of the important export spices in China. The components of eucalyptus oil are gamma xyloene (12.04%), methyl hexadecatrienoate (7.45%), eucalyptol (7.38%), 1,8 cineole (5.76%), and alpha guaiacene (56.4%), sabinene (46.2%), methyl hexadecadienoate (42.6%), β-elemene (37.6%), β-pinene (32.0%), etc., the main ingredient is eucalyptus evvh.
Eucalyptin is a colorless to light yellow oily liquid with camphor and cool herbal odor. Eucalyptin has a molecular weight of 154.28, boiling point of 176~177 ° C, melting point of 1-1.5 ℃, freezing point of 1 ℃, flash point of 47-48 ℃, refractive index (n20D) of 1.455-1.460, and relative density (d2525) of 0.921-0.924. Eucalyptin is soluble in ether, chloroform, glacial acetic acid and propylene glycol, slightly soluble in water, and 1 mL of eucalyptin is soluble in 5 mL of 60% ethanol.
Using the prepared eucalyptol oil containing 60% eucalyptol as raw material, the eucalyptol was separated and purified by vacuum distillation, and 25 mL of crude eucalyptol oil was put in a distillation flask, and the gauge pressure of the vacuum pump was controlled at 0.078-0.073MPa. As a result of the second experiment, fractions in three temperature ranges were collected: fractions below 68°C, fractions above 68-78°C and fractions above 78°C, and the content of eucalyptol in them was detected by GC-MS; The content w≥80%, the fraction in this temperature range is the preliminary purified eucalyptol substance.
1. Medicine
In combination with other drugs, eucalyptin is mainly used for the treatment of influenza, cold, bacterial dysentery, enteritis, various infections (including mumps, meningitis, suppurative tonsillitis, pediatric head sore, erysipelas, traumatic infection, etc.), tuberculosis and various skin diseases. In addition, eucalyptin can be used as an antiseptic and deodorant component of oral cleaner in stomatology. It can be mixed with metal oxidant to form a paste that can bond the gap on the tooth groove, or make a hard adhesive powder for filling the root canal and radiation experiments. The pungent smell of cineole can enhance the efficacy of some respiratory drugs and treat respiratory diseases. Eucalyptin also has the function of inhibiting appetite. The liquid medicine or solid tablets prepared with it have a good effect on treating hyperappetite and reducing weight.
2. Commodity industry
As a spice, eucalyptus can be used to prepare perfume, detergent, skin cleaner, hair conditioner, shampoo, toothpaste, tooth powder, etc. It can be used to prepare insect repellents for killing and repelling cockroaches, clams, various stored pests and mosquitoes. Its bactericidal effect can be used to prepare microbicide. If it works with protease, it can be used to make contact lens cleaning solution. It can be made into air freshener, toilet or sewage deodorant by comprehensively utilizing the fragrance, germicidal ability and insect repellent effect of the leaf extract. At the same time, because eucalyptin has the effect of preventing respiratory tract infection, cold and other diseases, the air freshener prepared by it can also effectively prevent the occurrence of these diseases.
3. Food additives
Eucalyptin has a cool aroma, is non-toxic to people, and can also be used as a food additive, which is most commonly found in the formula of chewing gum.
4. Industrial catalysis
Eucalyptin can be used as an excellent catalyst for the preparation of olefin polymerization reaction, to prepare olefin polymers with high organic conformation, high strength, good membrane pressure performance, good adhesion resistance, or good optical properties. In recent years, relevant research has been very active, and many gratifying results have been achieved.
5. Others
Eucalyptin also has many other application fields, such as preparation of hair removal gel, electronic photographic organic coloring resin, flame retardant coating agent, synthetic raw material of a-Terpineo -, high octane gasoline fuel cosolvent, liquid leakage indicator, etc.
Eucalyptus leaf oil is an aromatic essential oil secreted by the oil gland cells of eucalyptus leaves. It is a colorless oily liquid and is one of the important export spices in China. The components of eucalyptus oil are gamma xyloene (12.04%), methyl hexadecatrienoate (7.45%), eucalyptol (7.38%), 1,8 cineole (5.76%), and alpha guaiacene (56.4%), sabinene (46.2%), methyl hexadecadienoate (42.6%), β-elemene (37.6%), β-pinene (32.0%), etc., the main ingredient is eucalyptus evvh.
Eucalyptin is a colorless to light yellow oily liquid with camphor and cool herbal odor. Eucalyptin has a molecular weight of 154.28, boiling point of 176~177 ° C, melting point of 1-1.5 ℃, freezing point of 1 ℃, flash point of 47-48 ℃, refractive index (n20D) of 1.455-1.460, and relative density (d2525) of 0.921-0.924. Eucalyptin is soluble in ether, chloroform, glacial acetic acid and propylene glycol, slightly soluble in water, and 1 mL of eucalyptin is soluble in 5 mL of 60% ethanol.
Using the prepared eucalyptol oil containing 60% eucalyptol as raw material, the eucalyptol was separated and purified by vacuum distillation, and 25 mL of crude eucalyptol oil was put in a distillation flask, and the gauge pressure of the vacuum pump was controlled at 0.078-0.073MPa. As a result of the second experiment, fractions in three temperature ranges were collected: fractions below 68°C, fractions above 68-78°C and fractions above 78°C, and the content of eucalyptol in them was detected by GC-MS; The content w≥80%, the fraction in this temperature range is the preliminary purified eucalyptol substance.
1. Medicine
In combination with other drugs, eucalyptin is mainly used for the treatment of influenza, cold, bacterial dysentery, enteritis, various infections (including mumps, meningitis, suppurative tonsillitis, pediatric head sore, erysipelas, traumatic infection, etc.), tuberculosis and various skin diseases. In addition, eucalyptin can be used as an antiseptic and deodorant component of oral cleaner in stomatology. It can be mixed with metal oxidant to form a paste that can bond the gap on the tooth groove, or make a hard adhesive powder for filling the root canal and radiation experiments. The pungent smell of cineole can enhance the efficacy of some respiratory drugs and treat respiratory diseases. Eucalyptin also has the function of inhibiting appetite. The liquid medicine or solid tablets prepared with it have a good effect on treating hyperappetite and reducing weight.
2. Commodity industry
As a spice, eucalyptus can be used to prepare perfume, detergent, skin cleaner, hair conditioner, shampoo, toothpaste, tooth powder, etc. It can be used to prepare insect repellents for killing and repelling cockroaches, clams, various stored pests and mosquitoes. Its bactericidal effect can be used to prepare microbicide. If it works with protease, it can be used to make contact lens cleaning solution. It can be made into air freshener, toilet or sewage deodorant by comprehensively utilizing the fragrance, germicidal ability and insect repellent effect of the leaf extract. At the same time, because eucalyptin has the effect of preventing respiratory tract infection, cold and other diseases, the air freshener prepared by it can also effectively prevent the occurrence of these diseases.
3. Food additives
Eucalyptin has a cool aroma, is non-toxic to people, and can also be used as a food additive, which is most commonly found in the formula of chewing gum.
4. Industrial catalysis
Eucalyptin can be used as an excellent catalyst for the preparation of olefin polymerization reaction, to prepare olefin polymers with high organic conformation, high strength, good membrane pressure performance, good adhesion resistance, or good optical properties. In recent years, relevant research has been very active, and many gratifying results have been achieved.
5. Others
Eucalyptin also has many other application fields, such as preparation of hair removal gel, electronic photographic organic coloring resin, flame retardant coating agent, synthetic raw material of a-Terpineo -, high octane gasoline fuel cosolvent, liquid leakage indicator, etc.
