| Name | FEMA 2795 |
| Synonyms | OAKMOSS FEMA 2795 OAKMOSS OLIFFAC 924 Oils,oakmoss-resinoid OAKMOSS ABSOLUTE RESIN OAKMOSS CONCRETE BROWN MAROC OAKMOSS CONCRETE GREEN MAROC |
| CAS | 9000-50-4 |
| FEMA | 2795 | OAKMOSS ABSOLUTE (EVERNIA SPP.) |
| Color | A green to brownish-green semi-solid or viscous liquid. The chief volatile constituents are α- and / |
| Physical and Chemical Properties | Benzene extract was dark brown to green-brown solid, petroleum ether extract was dark brown thick paste. Black and White with pine odor. |
| Toxicity | The actual oral LD50 in rats was reported as 2.9 (2.6-3.2 g/kg), while the acute dermal LD50 in rabbits exceeded 5 g/kg (Moreno, 1972). |
FEMA 2795, also known as rosin, is a natural resin, usually extracted from the resinous secretions of oak or pine trees. It has the following properties:
1. Physical properties: FEMA 2795 is yellow to reddish brown, with a special Rosin aroma. It has a low viscosity and consistency, can be dissolved in a variety of organic solvents.
2. Chemical properties: FEMA 2795 insoluble in water, but soluble in alcohol, ethers and some organic solvents. It has a certain viscosity and can be cured to form a hard and transparent substance.
FEMA 2795 has a wide range of applications, including but not limited to the following:
1. Ceramic industry: FEMA 2795 is often used as a paint and adhesive for ceramic artworks, which can provide protection and decorative effects for works.
2. Coating Industry: Because of its viscosity and curing, FEMA 2795 is often used as a component of paints, coatings and glues, making the coating have a certain degree of adhesion and durability.
in terms of preparation method, the extraction of FEMA 2795 can be carried out through the following steps:
1. Collect resin: Collect resin secretions at an appropriate time and method, usually by cutting the outer layer of the tree to make the resin flow out.
2. Isolation resin: the collected resin is physically or chemically treated to separate it from impurities to obtain pure oakmoss resin.
In terms of safety information, FEMA 2795 is generally considered safe, but the following matters still need to be noted:
1. Contact with skin or eyes should be immediately rinsed with water.
2. Avoid prolonged exposure to high temperatures to avoid harmful gases.
3. When using FEMA 2795, ensure good ventilation to avoid inhalation of excessive volatile organic compounds.
Please note that the above information is for reference only. When using FEMA 2795, please be sure to refer to the product manual and relevant safety guidelines, and follow the correct operation and use methods.