Beeswax is solid at room temperature and has the special smell of honey and powder. The colors are light yellow, medium yellow or dark brown and white. The cross section is in the crystal shape of small particles. The sticky teeth will be white after chewing and have no greasy smell. The specific gravity is 0.954-0.964, and the melting point is 62-67 ºC. Some studies have found that beeswax can be soluble in organic solvents such as benzene, toluene, chloroform, etc., slightly soluble in ethanol, insoluble in water, but under certain conditions, beeswax can form emulsion with water.
Physical and chemical properties of beeswax
1. Character: This product is white or light yellow solid, without luster and crystal; Odorless, with specific smell.
Solubility: This product is easily soluble in chloroform, slightly soluble in ether, and almost insoluble in water or anhydrous ethanol.
2. Relative density: take this product, prepare a block of 1 cm in length, width and height, put it into a 500ml measuring cup, add about 400ml (20 ºC) of ethanol solution (1 → 3), and add distilled water if the wax block sinks; If the wax block floats, ethanol can be added until the wax block can stop at any point in the solution to obtain the relative density test solution. Take the test solution and take a photo to determine the density measurement method (general rule 0601). The relative density of this product is 0.954-0.964.
3. Melting point: the melting point of this product (the second method of general rule 0612) is 62-67 ºC.
4. Refractive index: the refractive index of this product (general rule 0622) is 1.4410-1.4430 at 75 ºC.
5. Acid value: the acid value of this product (general rule 0713) is 5.0-8.0 (middle beeswax) or 16.0-23.0 (western beeswax).
6. Saponification value: the saponification value of this product (general rule 0713) is 85-100.
7. Iodine value: the iodine value of this product (general rule 0713) is 8.0-13.0.
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