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77-09-8
futurechem
77-09-8
Product Description
Product name:Phenolphthalein
CAS：77-09-8
MF：C20H14O4
MW：318.32
EINECS:201-004-7
Applicatiuon ：
1. Used in organic synthesis: mainly used in the synthesis of plastics, especially the synthesis of naphthyridine polyaryl ether ketone polyaryl ether ketone polymers.
2. Used as acid-base indicators, indicators for titration of non-aqueous solutions, color Reagents for layer analysis.
Specifications :
| 项 目 | 标 准 | 结 果 |
| Items | Standard | Results |
| PH 变色域 | 8.0（无色）--10.0（红紫色） | 8.0（无色）--10.0（红紫色） |
| 质量系收系数 a（L/cm·g） | 68.0---75.0 | 68.6 |
| 乙醇溶解试验 | 合格 | 合格 |
| 灼烧残渣（以硫酸盐计） ≤ | 0.05 | 0.025 |
| 干燥失重 ≤ | 1 | 0.1 |
