推荐：Tiron@2024技术文献已更新

别名:3,5-Pyrocatecholdisulfonic acid disodium salt monohydrate, 1,2-Dihydroxy-3,5-benzenedisulfonic acid disodium salt, di-Sodium 4,5-dihydroxy-1,3-benzenedisulfonate, Sodium pyrocatechol-3,5-disulfonate, Tiron

Empirical Formula (Hill Notation):C6H4Na2O8S2 · xH2O

CAS号:149-45-1

分子量:314.20 (anhydrous basis)

EC索引号:205-741-5

属性
质量水平
200

形式
solid

组成
Water, 4.5-6.5% Karl Fischer

pH值（酸碱度）
5.0 (20 °C, 10 g/L in H2O)

mp
300 °C

溶解性
1350 g/L

堆积密度
465 kg/m3

λmax
290-291 nm (buffer pH 2.5)

储存温度
15-25°C

InChI
1S/C6H6O8S2.2Na/c7-4-1-3(15(9,10)11)2-5(6(4)8)16(12,13)14;;/h1-2,7-8H,(H,9,10,11)(H,12,13,14);;/q;2*+1/p-2

InChI key
ISWQCIVKKSOKNN-UHFFFAOYSA-L

说明
分析说明
Identity (UV/VIS-Spectrum): passes test
Absorption maximum λmax. (buffer pH 2.5): 290 - 291 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.05 g/l; buffer pH 2.5; calculated on anhydrous substance): 100 - 125
Water (according to Karl Fischer): 4.5 - 6.5 %
Suitability as indicator (for metal titration): passes test