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Merck

417661

Sigma-Aldrich

氢氧化钾 溶液

45 wt. % in H2O

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500 ML
$108.00
1 L
$139.00
2 L
$217.00
18 L
$829.00

$108.00


国内现货,预计发货时间2025年4月11日详情


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变更视图
500 ML
$108.00
1 L
$139.00
2 L
$217.00
18 L
$829.00

About This Item

线性分子式:
KOH
CAS号:
分子量:
56.11
MDL编号:
UNSPSC代码:
12352106
eCl@ss:
38100303
PubChem化学物质编号:
NACRES:
NA.21

$108.00


国内现货,预计发货时间2025年4月11日详情


获取大包装报价

等级

for analytical purposes

表单

liquid

浓度

43.0-47.0 wt. % (KOH basis, by HCl, titration)
45 wt. % in H2O

密度

1.456 g/mL at 25 °C

SMILES字符串

[K+].[O-][H]

InChI

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

InChI key

KWYUFKZDYYNOTN-UHFFFAOYSA-M

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一般描述

氢氧化钾溶液是一种广泛用于化学合成的强碱。范斯莱克装置和希尔德布兰德吸附技术被用来测定氧在不同浓度KOH溶液中的溶解度。[1]

应用

氢氧化钾溶液可用于以下过程:
  • 聚对苯二甲酸乙二醇酯薄片的解聚。[2]
  • 碳酸氢钾和碳酸钾的合成。[3]
  • 作为非加压离子色谱中的洗脱剂,用于分离和测定无机和有机阴离子。[4]
  • 水果籽油皂化测定生育酚和生育三烯酚。[5]

象形图

CorrosionExclamation mark

警示用语:

Danger

危险声明

危险分类

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

储存分类代码

8B - Non-combustible corrosive hazardous materials

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Nonsuppressor ion chromatography of inorganic and organic anions with potassium hydroxide as eluent.
Okada T and Kuwamoto T.
Analytical Chemistry, 55(7), 1001-1004 (1983)
The solubility and diffusion coefficient of oxygen in potassium hydroxide solutions.
Davis RE, et al.
Electrochimica Acta, 12(3), 287-297 (1967)
Native oils from apple, blackcurrant, raspberry, and strawberry seeds as a source of polyenoic fatty acids, tocochromanols, and phytosterols: a health implication.
Pieszka M, et al.
Journal of Chemistry, 2015 (2015)
Kinetics of depolymerization of poly (ethylene terephthalate) in a potassium hydroxide solution.
Wan BZ, et al.
Industrial & Engineering Chemistry Research, 40(2), 509-514 (2001)
Ledgard J.
The Preparatory Manual of Explosives., 79-79 (2007)

Questions

1–3 of 3 Questions  
  1. Is the 45 wt% specified w/w or w/v?

    1 answer
    1. The unit is weight/weight (w/w).

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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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  3. 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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