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Merck

1.06448

Supelco

クエン酸三ナトリウム 二水和物

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

別名:

クエン酸 三ナトリウム塩 二水和物, クエン酸三ナトリウム 二水和物

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About This Item

化学式:
HOC(COONa)(CH2COONa)2 · 2H2O
CAS番号:
分子量:
294.10
Beilstein:
6104939
MDL番号:
UNSPSCコード:
12352107
EC Index Number:
200-675-3
NACRES:
NA.21
Pricing and Inventory is not available. Please check the Merck website for more information.

グレード

ACS reagent

品質水準

認証

reag. ISO
reag. Ph. Eur.

製品種目

EMSURE®

アッセイ

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

フォーム

solid

有効性

>8000 mg/kg LD50, oral (Rat)

組成

Water, 11-13%

不純物

≤0.005% Insoluble matter

pH

7.5-9.0 (25 °C, 50 g/L in H2O)

mp

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

かさ密度

600 kg/m3

微量陰イオン

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

微量陽イオン

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

保管温度

2-30°C

SMILES記法

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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関連事項

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

アナリシスノート

Assay (perchloric acid titration): 99.0 - 101.0 %
Assay (Perchloric acid titration, calc. on anhydrous substance): 99.0 - 101.0 %
Identity: passes test
Appearance of solution: passes test
Insoluble matter: ≤ 0.005 %
pH-value (5 %; water; 25 °C): 7.5 - 9.0
Acidity or alkalinity: passes test
Chloride (Cl): ≤ 0.001 %
Oxalate (C₂O₄): ≤ 0.0300 %
Phosphate (PO₄): ≤ 0.002 %
Sulfate (SO₄): ≤ 0.004 %
Total nitrogen (N): ≤ 0.001 %
Heavy metals (ACS): ≤ 0.0005 %
Heavy metals (as Pb): ≤ 0.0005 %
Ca (Calcium): ≤ 0.005 %
Fe (Iron): ≤ 0.0005 %
NH₃ (Ammonia): ≤ 0.003 %
Readily carbonisable substance: passes test
Water: 11.0 - 13.0 %
Corresponds to ACS,ISO,Reag. Ph Eur

法的情報

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

保管分類コード

11 - Combustible Solids

WGK

WGK 1

引火点(°F)

Not applicable

引火点(℃)

Not applicable


試験成績書(COA)

製品のロット番号・バッチ番号を入力して、試験成績書(COA) を検索できます。ロット番号・バッチ番号は、製品ラベルに「Lot」または「Batch」に続いて記載されています。

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質問

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

    1 回答
    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 回答
    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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レビュー

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