Name | Carnauba wax |
Synonyms | carnuba CARNAUBA carnubawax CARNAUBA WAX Carnauba wax WAX, CARNAUBA CARNAUBA WAX YELLOW CARNAUBA WAX, NO 1, YELLOW CARNAUBA WAX, REFINED, NO 1, YELLOW |
CAS | 8015-86-9 |
EINECS | 232-399-4 |
Density | 0.990-0.999 |
Melting Point | 81-86 °C |
Water Solubility | Soluble in diethyl ether, alkali, chloroform. Slightly soluble in boiling ethanol. Insoluble in water. |
Solubility | Practically insoluble in water, soluble on heating in ethyl acetate and in xylene, practically insoluble in alcohol. |
Appearance | Bright yellow solid |
Specific Gravity | 0.990-0.999 |
Color | Yellow |
Merck | 14,1846 |
Storage Condition | -20°C Freezer |
Stability | Stable. Incompatible with strong oxidizing agents. |
Sensitive | Easily absorbing moisture |
Refractive Index | 1.4500 |
MDL | MFCD00130724 |
Physical and Chemical Properties | Brown to light yellow brittle wax, with resin-like cross-section, slightly odorous. The relative density is 0.997, the melting point is 82~85 ℃, and the iodine value is 13.5. It is soluble in chloroform, ether lye and fat above 40 ℃, slightly soluble in hot ethanol, insoluble in water. Adl 0~7 mg/kg(FAO/WHO,1994). |
Use | Instead of beeswax. Insulation. Water repellent. Shoe polish. Fake paint. Source carnauba wax is a natural plant wax extracted from the leaves of palm trees that grow in northeastern Brazil, South America. It plays an important role in preventing the evaporation of water in dry areas. In these areas where industries are poor, carnauba wax plays a very important role in revitalizing the regional economy. The export of carnauba wax is attracting increasing attention as a bridge between agriculture and industry. Characteristics (1) Glossy is a major function of carnauba wax. It has been widely used in coating films in the fields of sugar-coated chocolate, granular chewing gum, nutritional food tablets, food and medicine, and has also been widely used in automobile wax, floor wax, leather polish, etc. (2) Brazil |
Safety Description | 24/25 - Avoid contact with skin and eyes. |
WGK Germany | 3 |
TSCA | Yes |
HS Code | 15211000 |
Reference Show more | 1. [IF=1.713] Baomiao Ding et al."Microencapsulation of Ammonium Bicarbonate by Phase Separation and Using Palm Stearin/Carnauba Wax as Wall Materials."Int J Food Eng. 2018 Jul;14(7-8): |
This line extracts the purified wax from the leaves of CopermWa cerz'/mz Mart.
The melting point of this product (General rule 0612 second method) should be 80 ~ 86C.
take about 5g of this product, accurately weigh it, put it in a 250ml Erlenmeyer flask, add 100ml of xylene, heat it to completely dissolve, add 50ml of ethanol and bromothymol blue indicator solution 2. 5ml, heated to clarify, while hot with ethanol potassium hydroxide titration solution (O .lm o l/L) drop to the solution is green, and the titration result is corrected with blank test. The acid value (General rule 0713) should be 2 to 7.
take about 3g of this product, weigh it accurately, put it in a 500ml Erlenmeyer flask, add 50ml of isopropanol-toluene (5: 4) mixture, and add 0 .5M o l/L potassium hydroxide ethanol solution 15ml, heated reflux for 3 hours, add phenolphthalein indicator liquid lm l, while hot with hydrochloric acid titration solution (0 .5M o l/L) titration, until the solution is pink and fades, heat to boiling, if the solution is pink again, then titrate to pink and fades, the results of the titration were corrected by a blank test. Saponification value (General rule 0713) should be 78~95.
take about 1.8g of this product, weigh it accurately, put it in a 500ml dry iodine bottle, add 30ml of chloroform, heat and dissolve it in a water bath at 80°C IX, determination according to law (General rule 0713), iodine value should be 5~14.
take this product about O . l g, 5ml of trimethyl methane was added and dissolved by heating, which was used as the test solution (taking advantage of the hot spot sample, about 10 mg of menthol, 10 mg of thymol and 10 ml of Menthyl acetate were separately taken, and placed in the same 20ml measuring flask, add toluene to dilute to the scale, shake, as a control solution. According to the thin layer chromatography (General 0502) test, draw the Test Solution 6 ^ 1 and the reference solution 2 ^ 1, and point on the same silica gel G thin layer plate respectively, with ethyl acetate • ■ three gas methane (2 > 98) as the developing solvent, expand, take out, dry, spray with a new 20% phosphomolybdic acid ethanol solution at 105t: heat for 10-15 minutes until the spots are clear. The control solution showed spots from low to high followed by dark blue menthol, red thymol and dark blue Menthyl acetate. The test solution should show a large spot (thirty alkanes) between the corresponding positions of menthol and luteolin, and multiple tiny spots are visible below it, A plurality of blue spots should be displayed between the corresponding positions of thymol and Menthyl acetate, and other spots should be displayed above the above spots, and the spot with the largest specific shift value (elder brother) should be clear, the origin should appear blue.
take this product O .lg, add three gas methane 1 0 m l, heat to dissolve, check according to law (General rule 0901 and general rule 0902), the solution should be clear and colorless; If color, compared with the same volume of control solution (take 1.0 of potassium dichromate solution for color comparison, add 15ml of water, shake, then get), no deeper.
The l .O g of this product is taken for determination according to law (General rule 0841), and the residue left shall not exceed 0.25%.
The residue left under the ignition residue item shall not contain more than 20 parts per million (ppm) of heavy metals after inspection by law (General Rule 0 8 2 1).
pharmaceutical excipients, coating materials and release blockers.
sealed storage.