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• M.W. : 598.50gm
• Absorption maximum (Ammonia buffer pH 12.0+2ml 0.05M E.D.T.A.) ?max : 645-650nm
• Suitability for Calcium Determination : Passes Test
• Absorptivity (A1% 1cm at ?max, in Ammonia buffer pH 12.0+2ml 0.05M E.D.T.A.) : >350
• Solubility 0.1 % (Dist. Water) : Clear solution
• Loss On Drying (110°C) : <5%

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• M.W. : 878.45gm/mole
• Absorption maximum (Dist. water) ?max : 712-716nm
• Absorptivity maximum (A1%/1cm, in water on dried substance) at ?max : >110
• C.A.S. No. : 19381-50-1
• CI NO. : 10020
• Solubility 0.1 % (Dist. water) : Clear solution

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• Absorption maximum (in acetic perchloric acid)?max : 622-626 nm
• M.W. : 374.44 gm/mole
• C.A.S. No. : 145-50-6
• M.F. : C27H18O2
• Solubility 0.1% ( in acetic perchloric acid) : Almost clear solution
• Loss on drying (110oC) : <7%

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• C.A.S. No. : 145-50-6
• Absorptivity 1%/1cm in acetic perchloric acid)(on dried substance) : >640
• M.F. : C27H18O2
• M.W. : 374.44 gm/mole
• Absorption maximum (in acetic perchloric acid)?max : 622-626 nm
• Loss on drying (110oC) : <7%

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• M.F. : (C10H5O5NNaS)3 . Fe
• CI NO. : 10020
• Loss On Drying (110°C) : <10%
• C.A.S. No. : 19381-50-1
• M.W. : 878.45gm/mole
• Absorptivity maximum (A1%/1cm, in water on dried substance) at ?max : >110

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• M.W. : 598.50gm
• M.F. : C20H12N2O11Na2S3
• Absorption maximum (Ammonia buffer pH 12.0+2ml 0.05M E.D.T.A.) ?max : 645-650nm
• Suitability for Calcium Determination : Passes Test
• Absorptivity (A1% 1cm at ?max, in Ammonia buffer pH 12.0+2ml 0.05M E.D.T.A.) : >350
• Solubility 0.1 % (Dist. Water) : Clear solution