Thymolphthalein Indicator ACS, 100gm
indicator ACS,Reag. Ph Eur
Manufacturer: Merck
Catalog ID: 108175.0100
Stock: In Stock
Description
| Catalogue Number | 108175 |
Product Information
| CAS number | 125-20-2 |
| EC number | 204-729-7 |
| Grade | ACS,Reag. Ph Eur |
| Hill Formula | C₂₈H₃₀O₄ |
| Molar Mass | 430.54 g/mol |
| HS Code | 2932 20 90 |
Physicochemical Information
| Melting Point | 253 °C |
| Bulk density | 400 kg/m3 |
Storage and Shipping Information
| Storage | Storage temperature: no restrictions. |
Specifications
| Identity (UV/VIS-Spectrum) | passes test |
| Appearance | White to almost white powder, eventually slightly yellowish. |
| Clarity of solution (1 g/l; ethanol) | passes test |
| Absorption maximum λmax. (buffer pH 10.5) | 592 - 596 nm |
| Spec. Absorptivity A 1%/1cm (λmax; 0.01 g/l; buffer pH 10.5; calculated on anhydrous substance) | 800 - 900 |
| Transition range | pH 9.0 - pH 10.5 colourless - blue |
| Transition range (according to ACS) | passes test |
| Transition interval (according Reag. Ph. Eur.) | passes test |
| Loss on drying (110 °C) | ≤ 1 % |
