About This Item
98.5-101% dry basis (alkalimetric)
推荐产品
等级
ACS reagent
质量水平
Agency
reag. ISO
reag. Ph. Eur.
产品线
EMSURE®
方案
≥99.0% (alkalimetric)
98.5-101% dry basis (alkalimetric)
表单
solid
效能
>2000 mg/kg LD50, oral (Rat)
杂质
≤0.01% Insoluble matter
缺失
≤0.5% loss on drying, 130 °C
≤0.5% loss on ignition, 800 °C
pH值(酸碱度)
5.2-8.0 (20 °C, 50 g/L in H2O)
mp
884 °C (lit.)
密度
2.68 g/mL at 25 °C (lit.)
堆积密度
1400‑1600 kg/m3
痕量阴离子
chloride (Cl-): ≤0.001%
phosphate (PO43-): ≤0.001%
痕量阳离子
As: ≤0.0001%
Ca: ≤0.005%
Fe: ≤0.0005%
K: ≤0.002%
Mg: ≤0.001%
N: ≤0.0005%
heavy metals: ≤0.0005%
heavy metals (as Pb): ≤0.0005%
储存温度
2-30°C
SMILES字符串
[Na+].[Na+].[O-]S([O-])(=O)=O
InChI
1S/2Na.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
InChI key
PMZURENOXWZQFD-UHFFFAOYSA-L
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分析说明
含量测定(碱量滴定法,以无水物质计算):98.5 - 101.0 %
鉴别:通过测试
溶液外观:通过测试
不溶物质: ≤ 0.01 %
酸碱度:通过测试
pH-值(5 %;水;25 °C):5.2 - 8.0
氯化物(Cl): ≤ 0.001 %
磷酸盐(PO₄): ≤ 0.001 %
总氮(N): ≤ 0.0005 %
重金属(ACS): ≤ 0.0005 %
重金属(以铅计): ≤ 0.0005 %
As(砷): ≤ 0.0001 %
Ca(钙): ≤ 0.005 %
Fe(铁): ≤ 0.0005%
K(钾): ≤ 0.002 %
Mg(镁): ≤ 0.001 %
干燥失重 (130 °C): ≤ 0.5 %
干燥失重(800 °C): ≤ 0.5 %
符合ACS、ISO、Reag.Ph Eur
法律信息
储存分类代码
13 - Non Combustible Solids
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
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