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Merck

221473

Sigma-Aldrich

氢氧化钾

Potassium hydroxide

ACS reagent, ≥85%, pellets

别名:

苛性钾

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25 G
$59.80
500 G
$110.00
1 KG
$194.00
2.5 KG
$331.00
6 X 500 G
$636.00
4 X 2.5 KG
$1,130.00
12 KG
$1,260.00

$59.80


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变更视图
25 G
$59.80
500 G
$110.00
1 KG
$194.00
2.5 KG
$331.00
6 X 500 G
$636.00
4 X 2.5 KG
$1,130.00
12 KG
$1,260.00

About This Item

线性分子式:
KOH
CAS号:
分子量:
56.11
EC號碼:
MDL號碼:
分類程式碼代碼:
12352106
eCl@ss:
38100303
PubChem物質ID:
NACRES:
NA.21
化驗:
≥85%
等級:
ACS reagent
形狀:
pellets

$59.80


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等級

ACS reagent

品質等級

agency

suitable for EPA 1621
suitable for EPA 1633

蒸汽壓力

1 mmHg ( 719 °C)

化驗

≥85%

形狀

pellets

雜質

≤0.001% N compounds
≤2.0% K2CO3
10-15% water

pH值

~13.5 (25 °C, 5.6 g/L)

mp

361 °C (lit.)

負離子痕跡

chloride (Cl-): ≤0.01%
phosphate (PO43-): ≤5 ppm
sulfate (SO42-): ≤0.003%

正離子痕跡

Ca: ≤0.005%
Fe: ≤0.001%
Mg: ≤0.002%
Na: ≤0.05%
Ni: ≤0.001%
heavy metals: ≤0.001% (by ICP)

儲存溫度

room temp

SMILES 字串

[OH-].[K+]

InChI

1S/K.H2O/h;1H2/q+1;/p-1

InChI 密鑰

KWYUFKZDYYNOTN-UHFFFAOYSA-M

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一般說明

氢氧化钾是一种无机盐,主要用作合成乙酸钾、[1] 碳酸氢钾和碳酸钾等其他钾化合物的前体。[2]在商业规模上,它是通过氯化钾的电解而合成的。[3]

應用

氢氧化钾可用于以下过程:
  • 丁醇中将腈转化为酰胺。[4]
  • 芳基卤与不同的含硫、氧和氮的亲核试剂在二甲亚砜中的交叉偶联反应。[5]
  • 作为从玉米棒中制备活性炭的活化剂。[6]
  • 作为碱,用于使氮杂环在聚乙二醇-醚溶剂中发生 N-烷基化反应。[7]
  • 从(S)-苯丙氨醇合成(S)-1-(4-苄基-2-硫代噻唑-3-基)丙-1-酮。[8]
  • 催化环氧丙烷的聚合反应。[9]

象形圖

CorrosionExclamation mark

訊號詞

Danger

危險聲明

危險分類

Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A

儲存類別代碼

8A - Combustible corrosive hazardous materials

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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其他客户在看

Slide 1 of 1

1 of 1

A simple method for converting nitriles to amides. Hydrolysis with potassium hydroxide in tert-butyl alcohol
Hall JH & Gisler M
The Journal of Organic Chemistry, 41(23), 3769-3770 (1976)
Synthesis and diastereoselective aldol reactions of a thiazolidinethione chiral auxiliary
Crimmins MT, et al
Organic Syntheses, 364-376 (2012)
A study of the polymerization of propylene oxide catalyzed by anhydrous potassium hydroxide
Steiner EC, et al
Journal of the American Chemical Society, 86(21), 4678-4686 (1964)
Preparation of high surface area activated carbon from corn by chemical activation using potassium hydroxide
Bagheri N & Abedi J
Chemical Engineering Research and Design, 87(8), 1059-1064 (2009)
Dimethyl Sulfoxide/Potassium Hydroxide: A Superbase for the Transition Metal-Free Preparation of Cross-Coupling Products
Yuan Y, et al
Advanced Synthesis & Catalysis, 352(17), 2892-2898 (2010)

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

      Helpful?

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