17941-34-3
ALEURITIC ACID
CAS: 17941-34-3
Molecular Formula: C16H32O5
17941-34-3 - Names and Identifiers
| Name | ALEURITIC ACID |
| Synonyms | ALEURITIC ACID ALEURITIC ACID, 9,10,16- TRIHYDROXYPALMIT IC ACID |
| CAS | 17941-34-3 |
17941-34-3 - Physico-chemical Properties
| Molecular Formula | C16H32O5 |
| Molar Mass | 304.42 |
| Storage Condition | −20°C |
17941-34-3 - Nature
Open Data Verified Data
brown, brown-yellow to orange-yellow granules or flakes, friable and hard, slightly transparent. Odorless, tasteless, non-toxic. Soluble in ethanol, ether, ammonia, turpentine, soda ash or other alkali solution. Melting point of 115~120 ° C, can emit a special aromatic odor. In the case of long-term storage or heating, the polymerization will occur, so that the resin molecules become larger and larger, the viscosity increases, the softening point increases, and the fluidity deteriorates. The polymerization of shellac can be accelerated by adding a small amount of urea. Adding 2% ~ 3% urea to the semen of shellac wine can improve the hardness, elasticity, abrasion resistance, water resistance and adhesion of the paint film. Shellac has good mechanical, thermal and electrical properties.
Last Update：2024-01-02 23:10:35
17941-34-3 - Preparation Method
Open Data Verified Data
shellac is a resin-like substance (purple stalks) secreted by shellac parasitic on soybean meal or mulberry plants, which is the original gum after removing impurities such as branches, and then crushed, hot-melted, it is made by filtering and other processes.
- the insect ruler, the branches, the water-soluble pigment, the sediment and other water-soluble substances contained in the granular gum are mostly removed by crushing screening and washing with water to obtain the granular gum.
- The Violet film gel contains 3% ~ 5% of impurities, which need to be processed into sheet gel by hot filtration or solvent method. (1) Hot filtration method. After crushing, sieving and washing the purple stem, a semi-finished granular gum (containing lO%~ 20% water) was obtained, then mix the granular gel into 8% ~ lO% washed 40 mesh fine river sand (filter aid), add it to the hot filter kettle, and heat it with indirect steam to melt the granular gel, then compressed air pressure filtration, and then by dehydration, cooling, breaking, that is to obtain the violet film. (2) solvent method. The shellac material is dissolved in the solvent, filtered to remove impurities in the glue solution, then the solvent in the glue solution is distilled off, washed and dehydrated, and then compressed to obtain the violet film.
Last Update：2022-01-01 11:16:24
17941-34-3 - Application
Open Data Verified Data
widely used in wooden furniture, Radio wood shell, double, sewing machine sticky board, wooden toys, Wood ruler and other surface protection, but also increase the gloss. It can also be used as electrical insulation materials, food additives and adhesives.
Last Update：2025-08-19 16:24:40
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