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Merck
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主要文件

1.06448

Supelco

二水合柠檬酸钠

for analysis EMSURE® ACS,ISO,Reag. Ph Eur

别名:

柠檬酸钠三盐基 二水合物, 柠檬酸 三钠盐 二水合物, 柠檬酸三钠 二水合物

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500 G
$165.00
1 KG
$253.00
5 KG
$887.00

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预计发货时间2025年6月03日详情


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500 G
$165.00
1 KG
$253.00
5 KG
$887.00

About This Item

线性分子式:
HOC(COONa)(CH2COONa)2 · 2H2O
CAS号:
分子量:
294.10
Beilstein:
6104939
MDL编号:
UNSPSC代码:
12352107
EC索引号:
200-675-3
NACRES:
NA.21

$165.00


预计发货时间2025年6月03日详情


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等级

ACS reagent

质量水平

Agency

reag. ISO
reag. Ph. Eur.

产品线

EMSURE®

方案

99.0-101.0% (perchloric acid titration)
99.0-101.0% anhydrous basis (perchloric acid titration)

表单

solid

效能

>8000 mg/kg LD50, oral (Rat)

组成

Water, 11-13%

杂质

≤0.005% Insoluble matter

pH值(酸碱度)

7.5-9.0 (25 °C, 50 g/L in H2O)

mp

150 °C (anhydrous substance)
>300 °C (lit.)

堆积密度

600 kg/m3

痕量阴离子

chloride (Cl-): ≤0.001%
oxalate (C2O42-): ≤0.0300%
phosphate (PO43-): ≤0.002%
sulfate (SO42-): ≤0.004%

痕量阳离子

Ca: ≤0.005%
Fe: ≤0.0005%
N: ≤0.001%
NH4+: ≤0.003%
heavy metals: ≤0.0005%
heavy metals (as Pb): ≤0.0005%

储存温度

2-30°C

SMILES字符串

O.O.[Na+].[Na+].[Na+].OC(CC([O-])=O)(CC([O-])=O)C([O-])=O

InChI

1S/C6H8O7.3Na.2H2O/c7-3(8)1-6(13,5(11)12)2-4(9)10;;;;;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);;;;2*1H2/q;3*+1;;/p-3

InChI key

NLJMYIDDQXHKNR-UHFFFAOYSA-K

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替代:SX0445; SX0445-1; SX0445-3; SX0445-5; SX0445-20

分析说明

含量测定(高氯酸滴定):99.0-101.0%
含量测定(高氯酸滴定,以无水物计算):99.0 - 101.0 %
鉴别:通过测试
溶液外观:通过测试
不溶物质: ≤ 0.005%
pH值(5 %;水;25 °C):7.5-9.0
酸碱度:通过测试
氯化物(Cl): ≤ 0.001 %
草酸盐(C₂O₄): ≤ 0.0300 %
磷酸盐(PO₄): ≤ 0.002 %
硫酸盐(SO₄): ≤ 0.004 %
总氮(N): ≤ 0.001 %
重金属(ACS): ≤ 0.0005 %
重金属(以铅计): ≤ 0.0005 %
Ca(钙): ≤ 0.005 %
Fe(铁): ≤ 0.0005 %
NH₃(铵): ≤ 0.003 %
易碳化物质:通过测试
水:11.0 - 13.0 %
符合ACS,ISO,Reag.Ph Eur

法律信息

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

储存分类代码

11 - Combustible Solids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable


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Questions

1–2 of 2 Questions  
  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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