铬变酸二钠盐二水合物 [变色酸钠]，Chromotropic acid disodium salt dihydrate；puriss. p.a., ACS reagent, for the detection of Ag, ClO3-, Cr, Hg, NO2-, NO32-, Ti, ≥98.0%

等级

ACS reagent
puriss. p.a.

质量水平

200

测定

≥98.0%

形式

powder

质量

for the detection of Ag, ClO₃^-, Cr, Hg, NO₂^-, NO₃^2-, Ti

technique(s)

UV/Vis spectroscopy: suitable

杂质

8-10% water

颜色

off-white

mp

>300 °C (lit.)

SMILES string

O.O.[Na+].[Na+].Oc1cc(cc2cc(cc(O)c12)S([O-])(=O)=O)S([O-])(=O)=O

InChI

1S/C10H8O8S2.2Na.2H2O/c11-8-3-6(19(13,14)15)1-5-2-7(20(16,17)18)4-9(12)10(5)8;;;;/h1-4,11-12H,(H,13,14,15)(H,16,17,18);;;2*1H2/q;2*+1;;/p-2

InChI key

QUEAKWJKJBFNEG-UHFFFAOYSA-L