桐油
TUNG OIL
| APPEARANCE | SLIGHTLY TURBID |
| MOISTURE ＆ IMPURITIES | 0.16 % |
| SAPONIFICATION VALUE | 192.8 |
| SPECIFIC GRAVITY | DEGREE C 0.9384 |
| IODINE VALUE ( WIJ’S ) | 166.7 |
| REFRACTIVE INDEX | 20 DEGREE C 1.5220 |
| FREE FATTY ACID | 3.2 % |
| BETA TUNG OIL TEST | NO CRYSTALLINE PRECIPITATE |
| WORSTALL’S HEAT TEST | 7.5 MINUTES MAX |
|
性 質 |
用 途 |
| 黃色乾燥油.可溶於氯仿.醚.二硫化碳和油.比重0.9360－0.9432.皂化值193.碘值150－165.自然溫度457℃.低毒.可燃。 | 外用潻.油潻。 |