技术规格说明书
产品名称
四氢呋喃 inhibitor-free, suitable for HPLC, ≥99.9%
产品编号
34865
产品品牌
sigald
化学文摘社编号
109-99-9
分子量
72.11
Test皿 | 规格 |
|---|---|
| APPEARANCE (COLOR) | Colorless |
| APPEARANCE (FORM) | Liquid |
| COLOR (IN APHA) | ≤ 10 APHA |
| TITRATABLE ACID | FREE ACID ≤ 0.002 % AS ACETIC ACID |
| PURITY (GC AREA %) | ≥ 99.90 % |
| WATER (COULOMETR.) | ≤ 0.05 % |
| RESIDUE (EVAPORATION) | ≤ 0.0005 % |
| INFRARED SPECTRUM | CONFORMS TO STRUCTURE |
| UV-ABSORBANCE | ≤ 0.005 AT 400NM |
| UV-ABSORBANCE | ≤ 0.005 AT 350NM |
| UV-ABSORBANCE | ≤ 0.0044 AT 315NM |
| UV-ABSORBANCE | ≤ 0.02 AT 300NM |
| UV-ABSORBANCE | ≤ 0.046 AT 275 NM |
| UV-ABSORBANCE | ≤ 0.18 AT 250NM |
| UV-ABSORBANCE | ≤ 0.26 AT 245NM |
| UV-ABSORBANCE | ≤ 1.0 AT 212NM |
| PEROXIDES | ≤ 0.05 % (AS H2O2) |
| RECOMMENDED RETEST PERIOD | 36 Months |