Actual physical and Chemical Properties
Glycerin is also called glycerin. The pure glycerin is colorless, odorless, sweet viscous liquid.
Boiling position 290ºC,
melting position 17.9ºC,
relative density one.2613.
Infinitely miscible with drinking water,
anhydrous glycerin has powerful drinking water absorption.
Solubility:
It can absorb hydrogen sulfide, hydrocyanic acid, sulfur dioxide. It is miscible with drinking water and ethanol.
A single component of the product is soluble in eleven elements of ethyl acetate and about five hundred areas of ethyl ether.
It is insoluble in benzene, carbon disulfide, chloroform, carbon tetrachloride, petroleum ether, chloroform
and oils.
Effortless to be dehydrated, and to type diglycerin and polyglycerin, etc after shedding water, and to glyceraldehyde
and glyceric acid, and many others by oxidation.
It is solidified at 0ºC, forming a rhombic crystal with flash. At a temperature of about 150ºC, polymerization
normally takes area. Not suitable with anhydrous acetic anhydride, potassium permanganate, powerful acid, caustic agent, fatty amine, isocyanate, oxidant.
Ecological knowledge
It is sort of damaging to the h2o body. No air pollution to the atmosphere.
Homes and stability
one. Colorless
clear, odorless, viscous liquid with sweet flavor and hygroscopicity. It is miscible with drinking water and alcohols, amines and phenols in any proportion, and the aqueous remedy is neutral.
Soluble in eleven instances ethyl acetate, about 500 times ethyl ether. Insoluble in benzene, chloroform, carbon tetrachloride, carbon disulfide, petroleum ether, oil, lengthy chain fatty liquor.
Combustible, it can cause combustion and explosion when encountered chromium dioxide, potassium chlorate and other strong oxidants. It is also a great solvent for several inorganic salts and gases. Non-corrosive to metals,
it can be oxidized to acrolein when used as a solvent.
Chemical homes:
esterification with acid, e. g. to form alkyd resin.with benzoic acid. Transesterimetric reaction with ester.
It reacts with hydrogen chloride to sort chloroalcohols. There are two techniques to dehydrate glycerol: diglycerol
and polyglycerol are attained by intermolecular dehydration Intramolecular dehydration yields acrolein.
Glycerol reacts with alkali to form alcohols, and to sort acetal and ketone when it reacts with aldehydes and ketone. Glyceraldehyde and dihydroxyacetone had been oxidized by dilute nitric acid. Oxidation of periodate to formic acid and formaldehyde. Speak to with robust oxidants these kinds of as chromic anhydride, potassium chlorate or potassium permanganate can lead to combustion or explosion. Glycerol can also nitrify and acetyl.
2. Non-poisonous.
It is harmless even when eaten in a dilute resolution of up to 100g, which is hydrolyzed and oxidized in the entire body to turn out to be a nutrient source. In animal experiments, it has the identical anesthetic effect as alcohol when drunk in very big portions.
three. It is located in flue-remedied tobacco leaf, burley tobacco leaf, spice tobacco leaf and flue fuel.
4. By natural means discovered in tobacco, beer, wine and cocoa
Storage
1. Stored in a clear and dry area. Pay focus to moistureproof, watertight, warmth resistant, do not combine with robust oxidant. Can be stored in tin-plated,HDPE drum,or stainless metal containers.
