1-Naphtholbenzein Indicator 5Grm

indicator Reag. Ph Eur

Manufacturer: Merck

Catalog ID: 106202.0005

Stock: In Stock

 

Description

Catalogue Number 106202

Product Information

CAS number 145-50-6
EC number 205-656-3
Grade Reag. Ph Eur
Hill Formula C₂₇H₁₈O₂
Molar Mass 374.44 g/mol
HS Code 2914 50 00

Physicochemical Information

Melting Point 243 - 245 °C
Bulk density 120 - 300 kg/m3

Storage and Shipping Information

Storage Store at +5°C to +30°C.

Specifications

Identity (IR-spectrum) passes test
Identity (UV/VIS-Spectrum) passes test
Absorption maximum λmax. (perchloric acid (0,1 mol/l) in acetic acid) 622 - 626 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.005 g/l; perchloric acid (0,1 mol/l) in acetic acid; calculated on dried substance) 640 - 950
Transition range pH 8,0 - pH 9,6; apricot - turquoiseblue
Loss on Drying (105°C) ≤ 7 %
Suitability as indicator (for non-aqueous titration) passes test
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