Product Datasheet and Specification
01782A
1-Naphtholphthalein (pH Indicator)
1-naphtholphthalein
CAS : 596-01-0
HS Code : 3204.90000
Molecular Formula : C28H18O4
Molecular Weight : 418.45
Shelf Life : 60 Months
Specifications
Appearance
Light Pink to Beige to Red-Brown Powder |
Loss on drying (at 105°C)
Max 5% |
pH transition range (7.1 - 8.3)
Brownish pink to blue |
Absorption maxima (Buffer pH 7.1)
471 - 485 nm |
Absorption maxima (buffer pH 8.3)
649 - 654 nm |