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Phenol Red Phenolsulfonephthalein CAS No. 143-74-8
Phenol Red Phenolsulfonephthalein CAS No. 143-74-8

Phenol Red Phenolsulfonephthalein CAS No. 143-74-8

China Phenol Red Phenolsulfonephthalein CAS No. 143-74-8, Find details about China Phenol Red, Phenol from Phenol Red Phenolsulfonephthalein CAS No. 143-74-8

Model NO.
km-306
Content
Standard
Usage
Laboratory Reagents, Analytical Reagents
Source
Organic Synthesis
Habit Appellation
Chemical Indicaton
Application
Industry, Scientific Research, Health, Environmental Protection, Agriculture
Property
Biochemical Reagent
Solution Test in Alkali
Qualified
Loss on Drying
1.0%Max
Residue on Ignition (as Sulfate)
0.2%Max
Trademark
KMW
Transport Package
25kg/Fibre Drum
Origin
China
HS Code
3204901000
Model NO.
km-306
Content
Standard
Usage
Laboratory Reagents, Analytical Reagents
Source
Organic Synthesis
Habit Appellation
Chemical Indicaton
Application
Industry, Scientific Research, Health, Environmental Protection, Agriculture
Property
Biochemical Reagent
Solution Test in Alkali
Qualified
Loss on Drying
1.0%Max
Residue on Ignition (as Sulfate)
0.2%Max
Trademark
KMW
Transport Package
25kg/Fibre Drum
Origin
China
HS Code
3204901000
Code:km-306
Product name:Phenol Red
CAS No. 143-74-8
MF:  C19H14O5S
MW: 354.38
PH indicator range: 
1.2 (orange) -3.0(yellow)
6.5(yellow-brown)- 8.0(purple)
Maximum absorption wave-length(nm):
λ1(PH1.2)  503---506
λ2(PH 3.0)  430---435
λ3(PH 6.5)  430---435
λ4(PH 8.0)  557---560
Mass absorption coefficient(L/cm·g)
α1 (λ1,PH 1.2,dry sample)110---123
α2 (λ2,PH 3.0,dry sample)60---68
α3 (λ3,PH 6.5,dry sample)62---72
α4 (λ4,PH 8.0,dry sample)115-130
Solution test in alkali: qualified
Loss on drying: 1.0%max
Residue on ignition (as sulfate): 0.2%max'

Phenol Red Phenolsulfonephthalein CAS No. 143-74-8
Phenol Red Phenolsulfonephthalein CAS No. 143-74-8
Phenol Red Phenolsulfonephthalein CAS No. 143-74-8

 

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