L-(+)-酒石酸，L-(+)-Tartaric acid；for analysis EMSURE® ACS,ISO,Reag. Ph Eur, ≥99.5-101.0% dry basis (alkalimetric)

等级

ACS reagent

质量水平

300

Agency

reag. ISO
reag. Ph. Eur.

蒸汽压

<5 Pa ( 20 °C)

产品线

EMSURE^®

检测方案

≥99.5-101.0% dry basis (alkalimetric)

形式

solid

自燃温度

425 °C

杂质

≤10 ppm Phosphate (PO4)
≤100 ppm Sulfated ash
≤20 ppm Total sulfur (as SO4)
≤350 ppm Oxalic acid
≤5 ppm Chloride (Cl)
≤50 ppm Insoluble matter
≤50 ppm Sulfate (SO4)

缺失

≤ 0.2% loss on drying, 105°C

pH值（酸碱度）

1.6 (25 °C, 100 g/L in H₂O)

mp

168-170 °C

转变温度

flash point 210 °C

溶解性

water: 1390 g/L at 20 °C

密度

1.76 g/cm³ at 20 °C

堆积密度

1000 kg/m³

痕量阳离子

Ca: ≤20 ppm
Cu: ≤5 ppm
Fe: ≤5 ppm
Pb: ≤5 ppm
heavy metals (as Pb): ≤5 ppm

储存温度

2-30°C

InChI

1S/C4H6O6/c5-1(3(7)8)2(6)4(9)10/h1-2,5-6H,(H,7,8)(H,9,10)

InChI key

FEWJPZIEWOKRBE-UHFFFAOYSA-N