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746428

Sigma-Aldrich

碘化钾

anhydrous, free-flowing, Redi-Dri, ACS reagent, ≥99%

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About This Item

線性公式:
KI
CAS號碼:
分子量::
166.00
EC號碼:
MDL號碼:
分類程式碼代碼:
12352302
PubChem物質ID:
NACRES:
NA.21

等級

ACS reagent
anhydrous

品質等級

蒸汽壓力

1 mmHg ( 745 °C)

產品線

Redi-Dri

化驗

≥99%

形狀

crystals

品質

free-flowing

雜質

≤0.001% N compounds
≤0.005% insolubles

損耗

≤0.2% loss on drying

pH值

6.0-9.2 (25 °C, 5%)

mp

681 °C (lit.)

負離子痕跡

chloride, bromide (as Cl)-: ≤0.01%
iodate (IO3-): ≤3 ppm
phosphate (PO43-): ≤0.001%
sulfate (SO42-): ≤0.005%

正離子痕跡

Ba: ≤0.002%
Ca: ≤0.002%
Fe: ≤3 ppm
Mg: ≤0.001%
Na: ≤0.005%
heavy metals (as Pb): ≤5 ppm

SMILES 字串

[K+].[I-]

InChI

1S/HI.K/h1H;/q;+1/p-1

InChI 密鑰

NLKNQRATVPKPDG-UHFFFAOYSA-M

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一般說明

碘化钾是一种水溶性无机盐,可通过氢碘酸与碳酸氢钾反应来制备。

Redi-Dri 技术消除了结块,也不需要复杂的程序来保持盐的自由流动。保持盐干燥有助于改进结果,提供准确的测量和更容易处理的盐和缓冲液。Redi-Dri 不需要在烤箱或干燥器中干燥盐,也不需要手动将盐分开,可以确保盐在几个月内保持易于使用,而无需担心防结块剂。即使在反复打开后,你也可以确信你的结果总是准确的。Redi-Dri 可以节省你的时间、精力和金钱,让你的盐可以使用更长时间!

應用

碘化钾可用作以下反应的催化剂:
  • 以叔丁基过氧化氢作为氧化剂时,芳族伯胺转化成相应的硝基化合物。
  • 在镍催化剂存在下,芳基卤转化为芳基碘。
  • 在8-冠-6和叔丁基过氧化氢存在下,通过活化烯烃和磺酰肼在水中反应而制备磺化羟吲哚。

特點和優勢

  • 提高效率——免除需要松散硬化粉末的时间和精力
  • 更加安全——避免使用工具大力敲碎团块的风险
  • 更加经济——制备和溶剂化速度更快,提高效率并节约成本
  • 质量保证——经过专业检测的出色品质,无抗结剂添加
  • 灵活的用量选择——有从研究到放大级别的用量规格可供选择

法律資訊

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

象形圖

Health hazard

訊號詞

Danger

危險聲明

危險分類

STOT RE 1 Oral

標靶器官

Thyroid

儲存類別代碼

6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable


分析證明 (COA)

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W R Heymann
Journal of the American Academy of Dermatology, 42(3), 490-492 (2000-02-25)
The inhibition of organic binding of iodide in the thyroid gland by excess iodide, resulting in the cessation of thyroid hormone synthesis, is known as the Wolff-Chaikoff effect. This review explores the nature of the Wolff-Chaikoff effect, both in terms
D V Becker et al.
Thyroid : official journal of the American Thyroid Association, 7(2), 193-197 (1997-04-01)
A marked increase in thyroid cancer among young children who were in the vicinity of the Chernobyl nuclear power plant at the time of the 1986 accident strongly suggests a possible causal relationship to the large amounts of radioactive iodine
Christoph Reiners et al.
Radiation and environmental biophysics, 52(2), 189-193 (2013-03-12)
Thyroid cancer in children and adolescents has to be considered as the most severe health consequence of a nuclear reactor emergency with release of radioiodine into the atmosphere. High doses of potassium iodide are effective to block radioiodine thyroid uptake
J B Sterling et al.
Journal of the American Academy of Dermatology, 43(4), 691-697 (2000-09-27)
Potassium iodide (KI) is a useful drug in the dermatologic armamentarium. It is successfully used for inflammatory dermatoses, most notably erythema nodosum, subacute nodular migratory panniculitis, nodular vasculitis, erythema multiforme, and Sweet's syndrome. KI is also successfully used for cutaneous

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