Glycerin 1,2,3-propanetriol MFCD00675440
1. Product advantages
♦ High purity, all above 98.5%, no impurities after dissolution
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Density 1.3± 0.1g /cm3
Boiling point 290.0±0.0 °C at 760 mmHg
Melting point 20 °C(lit.)
Molecular formula C3H8O3
Molecular weight 92.094
Flash point 160.0±0.0 °C
Exact mass 92.047340
PSA 60.69000
LogP minus 2.32
Appearance properties transparent colorless, viscous liquid
Vapor density 3.1 (vs air)
Vapor pressure 0.0±1.3 mmHg at 25°C
Refractive index 1.490
Storage condition
1. Store in a clean and dry place, and pay attention to sealed storage. Pay attention to moisture-proof, waterproof, heat-proof, do not mix with strong oxidant. Can be stored in tinned or stainless steel containers.
2. Use aluminum or galvanized iron drum packing or storage tank lined with phenolic resin. The storage and transportation should be moisture-proof, heat-proof and water-proof. Do not place glycerin with strong oxidants (such as nitric acid, potassium permanganate, etc.). Storage and transportation in accordance with the provisions of general flammable chemicals.
stability
1. Colorless, transparent, odorless, viscous liquid, sweet taste, with hygroscopicity. With water and alcohols, amines, phenols in any proportion miscible, aqueous solution is neutral. Dissolved in 11 times ethyl acetate, about 500 times ether. Insoluble in benzene, chloroform, carbon tetrachloride, carbon disulfide, petroleum ether, oil, long chain fatty alcohol. Combustible, in case of chromium dioxide, potassium chlorate and other strong oxidants can cause combustion and explosion. It is also a good solvent for many inorganic salts and gases. Non corrosive to metal, can be oxidized to acrolein when used as a solvent.
Chemical properties: Esterification with acid, such as esterification with phthalic acid to produce alkyd resin. Transesterification occurs with esters. It reacts with hydrogen chloride to form chlorinated alcohols. There are two ways of glycerol dehydration: intermolecular dehydration to obtain diglycerol and polyglycerol; Acrolein is obtained by intramolecular dehydration. Glycerol reacts with a base to form an alcohol. React with aldehydes and ketones to produce acetals and ketones. Glyceraldehyde and dihydroxyacetone were oxidized by dilute nitric acid. The oxidation of periodic acid to formic acid and formaldehyde. Contact with strong oxidants such as chromic anhydride, potassium chlorate or potassium permanganate can cause combustion or explosion. Glycerol can also perform nitration and acetylation.
2. Non-toxic. Even if the total amount of dilute solution up to 100g is not harmful, in the body after hydrolysis and oxidation to become a source of nutrients. In animal experiments, it has the same anesthetic effect as alcohol when consumed in very large quantities.
3. It exists in flue-cured tobacco leaf, burley tobacco leaf, flavored tobacco leaf and flue gas.
4. Found naturally in tobacco, beer, wine and cocoa.
Water solubility >500 g/L (20 ºC)
Molecular structure
1. Molar refractive index: 20.51
2, molar volume (cm3/mol) : 70.9
3. Isotropic specific volume (90.2K) : 199.0
4. Surface tension (dyne/cm) : 61.9
5. Polarization (10-24cm3) : 8.13
Computational chemistry
1. Reference value for calculating hydrophobic parameters (XlogP) : None
2. Number of hydrogen bond donors :3
3. Number of hydrogen bond receptors :3
4. Number of rotatable bonds :2
5. Number of tautomers: None
6. Topological molecular polar surface area 60.7
7. Number of heavy atoms :6
8. Surface charge :0
9. Complexity :25.2
10. Number of isotope atoms :0
11. Determine the number of primary constitutive centers :0
12. Number of indeterminate atomic orthotropic centers :0
13. Determine the number of chemical bond constitutive centers :0
14. Number of uncertain bond constitutive centers :0
15. Number of covalent bond units :1
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