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/418/501/product-dating-information-06-25-mk.pdf
42019
Potassium dichromate
reference material for titrimetry, certified by BAM, >99.5%
Synonym(s):
Potassium bichromate
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| Size/SKU | Availability | Price |
|---|
About This Item
grade
reference material
Quality Segment
assay
>99.5%
technique(s)
titration: suitable
mp
398 °C (lit.)
format
neat
SMILES string
[K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O
InChI
1S/2Cr.2K.7O/q;;2*+1;;;;;;2*-1
InChI key
KMUONIBRACKNSN-UHFFFAOYSA-N
General description
Application
Features and Benefits
- Available in a neat format in a secure glass bottle to ensure its stability for the entire shelf life until opened.
- Traceable to NIST SRMs
- High-quality offering accurate titer determinations
- Accompanied by a certificate of analysis (CoA)
Analysis Note
1 of 1
This Item | |||
|---|---|---|---|
| technique(s) titration: suitable | technique(s) - | technique(s) cell culture | mammalian: suitable | technique(s) - |
| format neat | format - | format - | format - |
| assay >99.5% | assay ≥99.0% | assay 99.98% trace metals basis | assay ≥99.9% dry basis (iodometric) |
| grade reference material | grade ACS reagent | grade - | grade ACS reagent |
| Quality Level 100 | Quality Level 200 | Quality Level 100 | Quality Level 300 |
| mp 398 °C (lit.) | mp 398 °C (lit.) | mp 398 °C (lit.) | mp 398 °C |
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signalword
Danger
Hazard Classifications
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
target_organs
Cardio-vascular system, Respiratory system
Storage Class
5.1B - Oxidizing hazardous materials
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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¿Is this item certified on ISO 17034?
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This product is a BAM Certified reference material. BAM is accredited as an RM manufacturer in accordance with DIN EN ISO 17034 (General Requirements for the Competence of Reference Material Manufacturers) by the German Accreditation Body (DAkkS). The certification of our reference materials is based on the principles and requirements of DIN EN ISO 17034 and ISO Guide 35.
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