Alizarin | 1,2-Dihydroxyanthraquinone, Hi-Cert, 25 gram

1,2-Dihydroxyanthraquinone, Hi-Cert

No. CAT : GRM135

Product Identifier
CAS No. : 72-48-0
EC No. : 200-782-5
C.I. No. : 58000
Molecular Formula : CHO
Molecular Weight : 240.21
Synonym : Alizarin, Hi-Cert
HS Code : 2914 69 90
Storage : Below 30C
Shelf life : 4 years


Technical Specification
Appearance : Gold to orange to brown crystals or powder
Solubility : 10 ppm in 5M sodium hydroxide yields clear to turbid, purple to verydark purple solution
Visual pH Transition : pH 5.5 (yellow) to 6.8 (red) andpH 10.1 (red) to 12.1 (violet)
Absorption maximum 1 : 605 - 610 nm (10 ppm in 5M NaOH)
Absorption maximum 2 : 565 - 570 nm (10 ppm in 5M NaOH)
Loss on drying (at 105C, 2 hr) : <= 10.0%

Note :
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