Merck 106278 – Alizarin red S mono sodiumsalt

Merck 106278 – Alizarin red S mono sodiumsalt (C.I. 58005) for analysis and indicator. CAS 130-22-3, molar mass 342.26 g/mol.

Category : AA

Specification.
CAS number                                         130-22-3

EC number                                            204-981-8

Hill Formula                                           C₁₄H₇NaO₇S

Molar Mass                                           342.26 g/mol

Application                                            Alizarin red S mono sodiumsalt (C.I. 58005) for analysis and indicator. CAS 130-22-3, molar     mass 342.26 g/mol.

Identity (UV/VIS-Spectrum)                  passes test

1st transition range                               pH 4.3 - pH 6.3 Lightly yellow - pink

2nd transition range                              pH 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 %

Packaging:
- 1.06278.0025:  Botol Kaca/25gr

Price:
- 1.06278.0025 : Rp. 989.000,- + excl. VAT/PPN 10%


Terms:
Exworks. Franco Medan, Sumatera Utara.

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