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Alizarin red S mono sodiumsalt (C.I. 58005) for analysis and indicator

Rp. 1.663.200
Update Terakhir
02 Mei 2023
Pembelian Min
1 Gram
Kategori
Bahan Kimia

Spesifikasi Alizarin red S mono sodiumsalt (C.I. 58005) for analysis and indicator

Alizarin red S mono sodiumsalt (C.I. 58005) for analysis and indicator

Laboratory Reagents

Description
Catalogue Number106278
Product Information
CAS number130-22-3
EC number204-981-8
Hill FormulaC₁₄H₇NaO₇S
Molar Mass342.26 g/mol
HS Code3204 12 00
Specifications
Identity (UV/VIS-Spectrum)passes test
1st transition rangepH 4.3 - pH 6.3 Lightly yellow - pink
2nd transition rangepH 9.4 - pH 12.0 Brown orange - violet
Absorption maximum λ 1 (buffer pH 4.3)418 - 424 nm
Absorption maximum λ 2 (buffer pH 6.3)510 - 517 nm
Absorption maximum λ 3 (buffer pH 9.4)444 - 450 nm
Absorption maximum λ 4 (buffer pH 12.0)554 - 558 nm
Spec. Absorptivity A 1%/1cm (λ1max; 0.01 g/l; buffer pH 4.3; calc. on dried substance)135 - 180
Spec. Absorptivity A 1%/1cm (λ2max; 0.01 g/l; buffer pH 6.3; calc. on dried substance)145 - 210
Spec. Absorptivity A 1%/1cm (λ3max; 0.01 g/l; buffer pH 9.4; calc. on dried substance)170 - 230
Spec. Absorptivity A 1%/1cm (λ4max; 0.01 g/l; buffer pH 12.0; calc. on dried substance)340 - 520
Loss on drying (110 °C)≤ 10 %
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