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Merck

367877

Sigma-Aldrich

碳酸钾

99.995% trace metals basis

别名:

碳酸钾盐

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10 G
$163.00
50 G
$442.00

$163.00


预计发货时间2025年4月21日详情


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10 G
$163.00
50 G
$442.00

About This Item

线性分子式:
K2CO3
CAS号:
分子量:
138.21
Beilstein:
4267587
EC 号:
MDL编号:
UNSPSC代码:
12352302
PubChem化学物质编号:
NACRES:
NA.23

$163.00


预计发货时间2025年4月21日详情


获取大包装报价

质量水平

方案

99.995% trace metals basis

表单

powder and chunks

杂质

≤55.0 ppm Trace Metal Analysis

mp

891 °C (lit.)

溶解性

H2O: soluble 138 g/L at 20 °C (completely)

SMILES字符串

[K+].[K+].[O-]C([O-])=O

InChI

1S/CH2O3.2K/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2

InChI key

BWHMMNNQKKPAPP-UHFFFAOYSA-L

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一般描述

碳酸钾(K2CO3)是一种水溶性无机化合物,主要来自钾盐。在工业领域,通过氢氧化钾与二氧化碳反应制得这种成分。先让溶液结晶形成钾水合物,随后进一步加热至200°C以上以形成脱水盐。[1][2]

应用

K2CO3可用于多种应用,例如:
  • 生产肥皂和玻璃[3][3]
  • 酮、醇和胺类缓冲剂等有机化合物的干燥剂[4]
  • 酿酒应用中的缓冲剂[5]
  • 焊剂和其他涂料成分[5]

象形图

Exclamation mark

警示用语:

Warning

危险声明

危险分类

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

靶器官

Respiratory system

储存分类代码

13 - Non Combustible Solids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

dust mask type N95 (US), Eyeshields, Gloves


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Transverse Tuning of TiO2 Nanotube Array by Controlling the Electrochemical Charge Transfer Resistance with Potassium Carbonate and Sodium Carbonate Composition in Ammonium Fluoride Electrolyte
Raj CC and Prasanth R
Journal of the Electrochemical Society, 162(4), E23-E29 (2015)
Pilot plant results for a precipitating potassium carbonate solvent absorption process promoted with glycine for enhanced CO2 capture
Smith K, et al.
Fuel Processing Technology, 135, 60-65 (2015)
Formulation of a metal arc welding flux with a potash enriched sodium silicate binder
Atuanya CU and Nwigbo SC
Journal of Emerging Trends in Engineering and Applied Sciences, 3(3), 497-501 (2012)
Evaluation of various agro-wastes for traditional black soap production
Taiwo OE and Osinowo FAO
Bioresource Technology, 79(1), 95-97 (2001)
Formic acid decomposition over palladium based catalysts doped by potassium carbonate
Jia L, et al.
Catalysis Today (2015)

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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