Merck 108677 0005 Xylenol Orange Tetrasodium Salt Metal 5 GR.

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Description
Catalogue Number	108677
Synonyms	3,3''-Bis[bis(carboxymethyl)aminoethyl] cresol sulfone phtrane sodium salt

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Product Information
CAS number	3618-43-7
EC number	222-805-8
Grade	ACS,Reag. Ph Eur
Hill Formula	C₃₁H₂₈N₂Na₄O₁₃S
Molar Mass	760.58 g/mol
HS Code	2934 99 99
Structure formula Image
Quality Level	MQ200

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Physicochemical Information
pH value	8.1 (10 g/l, H₂O, 20 °C)
Bulk density	250 kg/m3
Solubility	510 g/l

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Safety Information according to GHS
Storage class	10 - 13 Other liquids and solids
WGK	WGK 3 highly hazardous to water
Disposal	3\nRelatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

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Storage and Shipping Information
Storage	Store at +15°C to +25°C.

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Specifications
Identity (UV/VIS-Spectrum)	passes test
Appearance of solution (1 g/l; water)	passes test
Absorption maximum λmax. (Sodium hydroxide solution 0.1 mol/l)	582 - 585 nm
Spec. Absorptivity A 1%/1cm (λmax.; 0.01 g/l; Sodium hydroxide solution 0.1 mol/l; calc. on dried substances)	580 - 790
Loss on drying (110 °C)	≤ 7 %
Suitability as indicator (for metal titration)	passes test
Sensitivity test	passes test