2,2,6-trimethylbicyclo(3.1.1)hept-2-ene
beta-pinene
CAS: 127-91-3;19902-08-0
Molecular Formula: C10H16
2,2,6-trimethylbicyclo(3.1.1)hept-2-ene - Names and Identifiers
2,2,6-trimethylbicyclo(3.1.1)hept-2-ene - Physico-chemical Properties
| Molecular Formula | C10H16 |
| Molar Mass | 136.23 |
| Density | 0.859 |
| Melting Point | -61°C |
| Boling Point | 167°C |
| Flash Point | 43°C |
| JECFA Number | 1330 |
| Water Solubility | 12mg/L(25 ºC) |
| Vapor Presure | 2.399mmHg at 25°C |
| Merck | 7446 |
| Stability | Stable. Flammable. Incompatible with strong oxidizing agents. |
| Refractive Index | 1.4782 |
| Physical and Chemical Properties | Colorless transparent oily liquid. With resin and resin aroma. Boiling Point: 165 ° C, levorotatory, [α] D20-22 °. Flash point 31.3 °c. Soluble in ethanol and most non-volatile oils, insoluble in water, glycerol and propylene glycol. Natural products are found in various Artemisia essential oils, coriander oil and litter oil, among others. |
2,2,6-trimethylbicyclo(3.1.1)hept-2-ene - Risk and Safety
| Risk Codes | 10 - Flammable |
| Safety Description | 16 - Keep away from sources of ignition. |
| UN IDs | 2368 |
| RTECS | DT5077000 |
2,2,6-trimethylbicyclo(3.1.1)hept-2-ene - Reference Information
| FEMA | 2903 | BETA-PINENE |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| content analysis | gas chromatography analysis was performed on a polar column in GT-10-4. |
| toxicity | GRAS(FEMA). LD50 4700mg/kg (rat, oral). |
| usage limit | FEMA(mg/kg): Soft drink 0.05~16; Cold drink 64; Candy 48~600; baking food 48~600. Moderate limits (FDA § 172.515,2000). |
| Use | GB 2760-1996 specifies the permitted use of spices. Mainly used in the preparation of nutmeg and lemon and other citrus flavor. is an important raw material for artificial synthesis of a variety of spices, camphor, borneol, vitamin A, E, K, terpene resin. |
| production method | generally obtained by turpentine fractionation, but the content of α-pinene is small. |
| category | flammable liquid |
| toxicity grade | poisoning |
| Acute toxicity | oral-rat LD50: 4700 mg/kg |
| stimulation data | Skin-rabbit 500 mg/24 h moderate |
| flammability hazard characteristics | in case of open flame, high temperature, flammable oxidant; Thermal decomposition of spicy and stimulating smoke |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored separately from the oxidant |
| extinguishing agent | dry powder, dry sand, carbon dioxide, foam, 1211 extinguishing agent |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 21:54:55
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