PRODUCTS > Organic product
Phenol red
| Product name: | Phenol red | |
| CAS NO.: | 143-74-8 | |
| Molecular formula: | C19H14O5S |
|
| Molecular Weight: | 354.38 | |
| Properties: | Peak red or carmine crystalline powder, easy solve in alkali solution, alcohol and acetone,insolve in water, makes acid ang alkali indicator. | |
| Specification (Phenol red) | ||
| CAS NO.: | 143-74-8 | |
| Molecular Formula: | C19H14O5S | |
| Molecular weight | 354.38 | |
| Properties: | Peak red or carmine crystalline powder, easy solve in alkali solution, alcohol and acetone,insolve in water, makes acid ang alkali indicator. | |
| Specification(Q/SS•J02•155-2006) | ||
| Items: | Ind Grade | |
| PHchangerange | 1.2(orange)-3(yellow) 6.5(yellow)-8(violet) | |
| Maximal absorption wavelength |
λ1£¨PH1.2© 503-506 λ2(PH3.0) 430-435 λ3 (PH6.5) 430-435 λ4(PH8.0) 557-560 |
|
| Quality absorption coefficient |
α1[λ1(PH1.2£¬dry sample)] 110-123 α2[λ2(PH3.0 dry sample)] 60-68 α3[λ3(PH6.5£¬dry sample)] 62-72 α4[λ4(PH8.0 dry sample)] 120-135 |
|
| Solubility in alkali | Passes test | |
| Sulfated ash w,percent | ≤0.2 | |
| Loss on drying w,percent | ≤1.0 | |