NAPHTOLPHTHALEIN indicator

ürün Kodu : 106246.0001

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Ürün Grubu : Merck Kimyasalları

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106246.0001

NAPHTOLPHTHALEIN indicator 

 

 

Ürün bilgisi
Hill Formula C28H18O4
HS Code 3204 19 00
EC number 209-875-5
Molar mass 418.45 g/mol
CAS number 596-01-0
Kimyasal ve fiziksel veri
Solubility (20 °C) practically insoluble
Melting point 253 - 255 °C
Molar mass 418.45 g/mol
Bulk density 350 kg/m3
Güvenlik bilgisi
Storage class 10 - 13 Other liquids and solids
WGK WGK 3 highly water endangering
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.
Spesifikasyonlar
Identity (UV/VIS-Spectrum) passes test
Transition range pH 7.1 - pH 8.3 Pinkbrownish - blue
Absorption maximum λ 1 (buffer pH 7.1) 470 - 485 nm
Absorption maximum λ 2 (buffer pH 8.3) 649 - 654 nm
Spec. Absorptivity A 1%/1cm
- λ1max; 0.01 g/l; buffer pH 7.1; calc. on anhydrous substance

100 - 180
- λ2max; 0.01 g/l; buffer pH 8.3; calc. on anhydrous substance 360 - 520
Loss on drying (110 °C) ≤ 5 %

1-Naphtholphthalein, molecular structure