1.07533
4-(2-Pyridylazo)resorcinol monosodium salt monohydrate
metal indicator Reag. Ph Eur
别名:
4-(2-Pyridylazo)resorcinol monosodium salt monohydrate, PAR
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关于此项目
经验公式（希尔记法）:
C11H8N3NaO2 · xH2O
化学文摘社编号:
分子量:
237.19 (anhydrous basis)
MDL number:
UNSPSC Code:
12352107
EC Index Number:
236-339-8
NACRES:
NB.21
InChI
1S/C11H9N3O2/c15-8-4-5-9(10(16)7-8)13-14-11-3-1-2-6-12-11/h1-7,16H,(H,12,14)/b13-9+
InChI key
VLCAILLZPUINNF-UKTHLTGXSA-N
agency
reag. Ph. Eur.
form
solid
pH
9.8 (20 °C, 10 g/L in H2O)
solubility
38 g/L
bulk density
630 kg/m3
storage temp.
2-30°C
Quality Level
Analysis Note
Assay (Perchloric acid titration, calc. on anhydrous substance): ≥ 99
Appearance of solution: passes test
Water (according to Karl Fischer): 7 - 8
Suitability as indicator (for metal titration): passes test
Appearance of solution: passes test
Water (according to Karl Fischer): 7 - 8
Suitability as indicator (for metal titration): passes test
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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