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483044

Sigma-Aldrich

重铬酸钾

99.98% trace metals basis

同義詞:

红矾钾

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About This Item

線性公式:
K2Cr2O7
CAS號碼:
分子量::
294.18
EC號碼:
MDL號碼:
分類程式碼代碼:
12352302
PubChem物質ID:
NACRES:
NA.23
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品質等級

化驗

99.98% trace metals basis

形狀

crystalline

反應適用性

reagent type: oxidant

技術

cell culture | mammalian: suitable

雜質

≤150.0 ppm Trace Metal Analysis

mp

398 °C (lit.)

SMILES 字串

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

InChI

1S/2Cr.2K.7O/q;;2*+1;;;;;;2*-1

InChI 密鑰

KMUONIBRACKNSN-UHFFFAOYSA-N

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應用

重铬酸钾可作为氧化剂用于通过氧化聚合反应合成各种高分子聚合物,例如聚邻苯二胺和聚苯胺。[1] [2]

訊號詞

Danger

危險分類

Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Acute Tox. 4 Dermal - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Eye Dam. 1 - Muta. 1B - Ox. Sol. 2 - Repr. 1B - Resp. Sens. 1 - Skin Corr. 1B - Skin Sens. 1 - STOT RE 1 Inhalation - STOT SE 3

標靶器官

Cardio-vascular system, Respiratory system

儲存類別代碼

5.1B - Oxidizing hazardous materials

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

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


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分析證明 (COA)

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Synthesis and characterization of fluorine-substituted polyanilines
A Cihaner and A.M Onal
European Polymer Journal, 37, 1767-1772 (2001)
Chemical polymerization kinetics of poly-o-phenylenediamine and characterization of the obtained polymer in aqueous hydrochloric acid solution using K2Cr2O7 as oxidizing agent
SM Sayyah, et al.
International Journal of Polymer Science, 2014 (2014)
Peter A Siver et al.
American journal of botany, 102(6), 921-941 (2015-06-24)
Heterokont algae of the class Synurophyceae, characterized by distinctive siliceous scales that cover the surface of the cell, are ecologically important in inland waters, yet their evolutionary history remains enigmatic. We explore phylogenetic relationships within this group of algae relative
Shafaqat Ali et al.
Environmental toxicology and chemistry, 32(10), 2234-2239 (2013-06-19)
A hydroponic experiment was carried out to examine the effect of hydrogen sulfide (H2 S) in alleviating chromium (Cr) stress in barley. A 2-factorial design with 6 replications was selected, including 3 levels of NaHS (0 μM, 100 μM, and
Bour-Jr Wang et al.
Journal of the Formosan Medical Association = Taiwan yi zhi, 110(12), 775-779 (2012-01-18)
Occupational dermatitis among cement workers is a major occupational health concern. The two most important occupational hazards for cement workers are irritant and allergic cement contact dermatitis. The objective of this study was to investigate the severity of occupational cement

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  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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