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236470

Sigma-Aldrich

三氧化铬(VI)

ACS reagent, ≥98.0%

别名:

铬酸酐

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About This Item

经验公式（希尔记法）:
CrO3
CAS号:
1333-82-0
分子量:
99.99
EC 号:
215-607-8
MDL编号:
MFCD00010952
UNSPSC代码:
12352303
PubChem化学物质编号:
329752434
NACRES:
NB.24
价格与库存信息目前不能提供

等级

ACS reagent

方案

≥98.0%

表单

powder or crystals

反应适用性

reagent type: oxidant

杂质

≤0.01% insolubles

pH值（酸碱度）

<1 (20 °C, 100 g/L)

mp

196 °C (dec.) (lit.)

痕量阴离子

chloride (Cl-): ≤0.005%
nitrate (NO3-): ≤0.05%
sulfate (SO42-): ≤0.005%

痕量阳离子

Fe, Al, Ba: ≤0.03%
Na: ≤0.2%

SMILES字符串

O=[Cr](=O)=O

InChI

1S/Cr.3O

InChI key

WGLPBDUCMAPZCE-UHFFFAOYSA-N

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相关类别

一般描述

氧化铬（VI）是一种氧化剂，可用于将碳氢键氧化为醇，将烷基芳烃氧化为酮和羧酸，将烯烃氧化为 α， β-不饱和酮，将芳烃氧化为醌，将醇氧化为醛、酮、酸和酮酸[1]。

警示用语：

Danger

危险分类

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

靶器官

Respiratory system

储存分类代码

5.1A - Strongly oxidizing hazardous materials

WGK

WGK 3

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
MKCW6956
MKCS3178
MKCQ2053
MKCK9109
MKCG1897

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Chromium (VI) Oxide
Freeman F, et al.
e-EROS Encyclopedia of Reagents for Organic Synthesis (2001)
Chromium (VI) Oxide.
Freeman F, et al.
e-EROS Encyclopedia of Reagents for Organic Synthesis. (2008)
Chromium (VI) oxide-catalyzed oxidation of arenes with periodic acid.
Yamazaki S.
Tetrahedron Letters, 42(19), 3355-3357 (2001)
L Vayssieres et al.
Journal of nanoscience and nanotechnology, 1(4), 385-388 (2003-08-14)
We are reporting here on the inexpensive fabrication and optical properties of an iron(III) oxide-chromium(III) oxide nanocomposite thin film of corundum crystal structure. Its novel and unique-designed architecture consists of uniformed, well-defined and oriented nanorods of Hematite (alpha-Fe2O3) of 50
Seongmin Lee et al.
Organic letters, 11(1), 5-8 (2008-12-06)
The C14,15-dihydro-C22,25-epi north unit of cephalostatin 1 has been synthesized in 11 operations from commercially available hecogenin acetate via multiple reductions and oxidations. The key transformations include (i) Cr(VI)-catalyzed E-ring opening, (ii) C17 hydroxylation, and (iii) a base-triggered cyclization cascade.
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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

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    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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    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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