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grade
ACS reagent
Quality Level
form
solid
loss
≤1% loss on drying, 110°C
visual transition interval
1.2-3.0, brown-orange to yellow(1st transition range)
6.5-8.0, brownish-yellow to red-violet(2nd transition range)
mp
>300 °C
bulk density
200‑300 kg/m3
storage temp.
2-30°C
InChI
1S/C19H14O5S/c20-15-9-5-13(6-10-15)19(14-7-11-16(21)12-8-14)17-3-1-2-4-18(17)25(22,23)24-19/h1-12,20-21H
InChI key
BELBBZDIHDAJOR-UHFFFAOYSA-N
Related Categories
General description
Application
- Dye in the preparation of phenol red/n-Si photodiode [phenol red/n-type silicon wafer] by spin coating technique. The device is appropriate for photo-detection applications.
- Color-changing dye in the design of fiber optic pH sensor because as the acidity increases, the dye′s absorption properties shift from the green to the blue section of the spectrum.
- Indicator in the determination of freshwater pH.
Features and Benefits
- pH is 6.4 or below yellow color
- pH is 8.2 or above red color.
Analysis Note
1st transition range: pH 1.2 - pH 3.0brownish orange - yellow
2nd transition range: pH 6.5 - pH 8.0brownish yellow - red violet
Loss on drying (110 °C): ≤ 1
Transition range (according to ACS): passes test
ACS conforms
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Skin Irrit. 2 - STOT SE 3
Target Organs
Respiratory system
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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