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重要文件

71498

Sigma-Aldrich

柠檬酸二钠

Sodium citrate monobasic

purum p.a., anhydrous, ≥99.0% (T)

同義詞:

柠檬酸 单钠盐, 柠檬酸二氢钠

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About This Item

線性公式:
HOC(COONa)(CH2COOH)2
CAS號碼:
分子量::
214.11
Beilstein:
3920246
EC號碼:
MDL號碼:
分類程式碼代碼:
12352100
PubChem物質ID:
NACRES:
NA.22
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等級

purum p.a.

化驗

≥99.0% (T)

形狀

crystals

pH值

3.5-3.8 (25 °C, 50 mg/mL in H2O)

溶解度

water: soluble 50, clear, colorless

負離子痕跡

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

正離子痕跡

Ca: ≤50 mg/kg
Cd: ≤50 mg/kg
Co: ≤50 mg/kg
Cu: ≤50 mg/kg
Fe: ≤50 mg/kg
K: ≤100 mg/kg
Ni: ≤50 mg/kg
Pb: ≤50 mg/kg
Zn: ≤50 mg/kg

官能基

carboxylic acid
hydroxyl

SMILES 字串

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

InChI

1S/C6H8O7.Na/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);/q;+1/p-1

InChI 密鑰

HWPKGOGLCKPRLZ-UHFFFAOYSA-M

尋找類似的產品? 前往 產品比較指南

一般說明

一元柠檬酸钠(柠檬酸二氢钠)是柠檬酸的一钠盐。已经提出了等渗方法来评估柠檬酸二氢钠的二元水性混合物的气液平衡参数(水活度、蒸气压、渗透系数和活度系数)。[1]已报道了通过 X 射线衍射法研究柠檬酸二氢钠的晶体结构。其晶体为单斜晶,空间群为 P21/a。[2]
柠檬酸钠通常用作各种应用中的缓冲剂。[3]

柠檬酸钠是改善透钙磷石骨水泥性能的有效缓凝剂。[4]

應用

柠檬酸二氢钠适用于合成 16 个功能性烯烃封端的超支化低聚物,可用于制备牙科复合材料的复合体系。[5]它适用于制备胃液,以研究烹饪方法以及所选食物的共摄取对鱼类中汞生物有效性的影响。[6]

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)


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The state of ionization of crystalline sodium dihydrogen citrate1
Glusker JP, et al.
Journal of the American Chemical Society, 82(11), 2964-2965 (1960)
Sheng Ye et al.
Dental materials : official publication of the Academy of Dental Materials, 28(9), 1004-1011 (2012-06-22)
Fillers are widely utilized to enhance the mechanical properties of polymer resins. However, polymerization stress has the potential to increase due to the higher elastic modulus achieved upon filler addition. Here, we demonstrate a hyperbranched oligomer functionalized glass filler UV
J E Barralet et al.
Biomaterials, 25(11), 2197-2203 (2004-01-27)
Brushite-forming calcium phosphate cements are of great interest as bone replacement materials because they are resorbable in physiological conditions. However, their short setting times, low mechanical strengths and limited injectability limit broad clinical application. In this study, we showed that
Ousséni Ouédraogo et al.
Environmental research, 111(8), 1064-1069 (2011-10-22)
Fish consumption is the main source of human exposure to mercury. Studies from specific human populations have reported Hg levels lower than those modeled from consumption data. These discrepancies between expected and measured Hg levels may be explained by differences
Influence of solid-state acidity on the decomposition of sucrose in amorphous systems (I)
Alkhamis KA
International Journal of Pharmaceutics, 362, 74-80 (2008)

Questions

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    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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  2. 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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