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Merck

Specification Sheet

Product Name
Martius Yellow sodium salt monohydrate 98%

Product Number
287814

Product Brand
ALDRICH

CAS Number
304655-86-5

Molecular Weight
274.16

Test

Specification

APPEARANCEORANGE POWDER
INFRARED SPECTRUMCONFORMS TO STRUCTURE.
UV-VISIBLE SPECTRUMC = 0.01G/L IN METHANOL
 E(430 +/- 3) NM = 16,000 (MINIMUM)
 E(388 +/- 3) NM = 15,000 (MINIMUM)
 E(257 +/- 3) NM = 11,000 (MINIMUM)
ELEMENTAL ANALYSISCARBON 42.8% - 44.9%
 NITROGEN 9.9% - 10.5%
THIN-LAYERCONSISTENT WITH 98% PURITY.
ICP ASSAY8.2% - 8.6% SODIUM
SOLUBILITY0.1% IN METHANOL; CLEAR, VERY DARK YELLOW TO
 GOLD OR ORANGE SOLUTION
 APPROVED OCTOBER 3, 2001 JSB