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MGT-7 Form
1-NAPHTHOLPHTHALEIN Indicator grade
Product Code:
04770
Specifications
Appearance
Light Pink to Beige to Red-Brown Powder
Infrared spectrum
Conforms
Absorption maxima (0.1N NaOH)
648 to 654 nm
Specific absorptivity 1%/1cm (at λmax)
Min 550.0
Visual transition interval
from pH 7.3 (pink-yellow) to pH 8.7 (green-blue)
Loss on drying (at 110°C; 1 hr)
Max 5.0%
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pH Indicator (Solid)
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