Product name: Bromocresol green
No.:A033
CAS No.: 76-60-8
M F: C21H14Br4O5S
Property: White or pale grey crystal,easy solve in alcohol,aether and benzene,decline solve in water.
Molecular weight: 698.02
Items: | Ind Grade |
PHchangerange | 3.8(yellow green )-5.4(blue) |
Solubllity in alcohol | Passes test |
Sulfated ash, percent | ≤0.25 |
Maximal absorption wavelength(nm） | λ1(PH3.8) 440-445
λ2(PH5.4) 615-618 |
Loss on drying w,percent | ≤3.0 |
Quality absorpting coefficient (L/cm?g) | α1[λ1(PH3.8,dry sample)] 24-28
α2[λ2(PH5.4,dry sample)] 53-58 |