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Merck

292788

Sigma-Aldrich

甲醇钾

95%

别名:

Potassium methylate

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5 G
$64.50
250 G
$144.00

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国内现货,预计发货时间2025年4月23日详情


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5 G
$64.50
250 G
$144.00

About This Item

线性分子式:
CH3OK
CAS号:
分子量:
70.13
Beilstein:
3551544
EC 号:
MDL编号:
UNSPSC代码:
12352107
PubChem化学物质编号:
NACRES:
NA.22

$64.50


国内现货,预计发货时间2025年4月23日详情


获取大包装报价

质量水平

方案

95%

表单

solid

SMILES字符串

[K+].C[O-]

InChI

1S/CH3O.K/c1-2;/h1H3;/q-1;+1

InChI key

BDAWXSQJJCIFIK-UHFFFAOYSA-N

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一般描述

甲氧基钾是一种碱性亲核试剂,常用于芳香卤代物的去卤反应。 [1] [2]

应用

甲醇钾可用于:
  • 作为甲氧基化试剂,用于溴和甲氧基烷烃在离子液体存在时的甲氧基化反应 [bmim][BF4].[3]
  • 作为合成碳酸二甲酯[4]和甲酸甲酯的催化剂。[5]
  • 作为葵花籽油酯基转移作用催化剂,用于生产生物柴油。[6]

象形图

FlameCorrosion

警示用语:

Danger

危险声明

危险分类

Self-heat. 1 - Skin Corr. 1B

补充剂危害

储存分类代码

4.2 - Pyrophoric and self-heating hazardous materials

WGK

WGK 2

闪点(°F)

51.8 °F - closed cup

闪点(°C)

11 °C - closed cup

个人防护装备

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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The effect of Mo(CO)6 as a co-catalyst in the carbonylation of methanol to methyl formate catalyzed by potassium methoxide under CO, syngas and H2 atmospheres. HP-IR observation of the methoxycarbonyl intermediate of Mo(CO)6.
Jali S, et al.
J. Mol. Catal. A: Chem., 348(1-2), 63-69 (2011)
Oligoethylene Glycols as Highly Efficient Mutifunctional Promoters for Nucleophilic-Substitution Reactions
Vinod J H et al.
Chemistry?A European Journal , 18, 3918-3924 (2012)
General and practical potassium methoxide/disilane-mediated dehalogenative deuteration of (hetero) arylhalides
Xin W et al.
Journal of the American Chemical Society, 140, 10970-10974 (2018)
Synthesis of dimethyl carbonate from methanol and carbon dioxide using potassium methoxide as catalyst under mild conditions.
Cai Q, et al.
Catalysis Letters, 103(3-4), 225-228 (2005)
Significantly enhanced reactivities of the nucleophilic substitution reactions in ionic liquid.
Kim DW, et al.
The Journal of Organic Chemistry, 68(11), 4281-4285 (2003)

Questions

1–2 of 2 Questions  
  1. 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

      Helpful?

  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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