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
221864
Potassium bromide
Greener Alternative
≥99% trace metals basis
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
25 g | Estimated to ship onOctober 21, 2026fromMILWAUKEE | $188.00 |
100 g | Estimated to ship onOctober 21, 2026fromMILWAUKEE | $440.00 |
About This Item
Quality Segment
vapor pressure
<0.01 mmHg ( 20 °C), 1 mmHg ( 795 °C)
assay
≥99% trace metals basis
form
powder or crystals
greener alternative product characteristics
Catalysis
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
technique(s)
FTIR: suitable
pH
5-6 (25 °C, 119 g/L)
mp
734 °C (lit.)
greener alternative category
SMILES string
[K+].[Br-]
InChI
1S/BrH.K/h1H;/q;+1/p-1
InChI key
IOLCXVTUBQKXJR-UHFFFAOYSA-M
General description
Application
- Cerium(IV) ammonium nitrate (CAN) for synthesizing dibromides via alkene bromination.
- Sodium perborate for synthesizing brominated anilines via oxidative bromination of unprotected aromatic amines.
- Hydrochloric acid and hydrogen peroxide for the bromination of active methylene and methyne compounds with high chemoselectivity.
Features and Benefits
1 of 1
This Item | |||
|---|---|---|---|
| description ≥99% trace metals basis | description anhydrous, powder, 99.999% trace metals basis | description BioUltra, ≥99.5% (AT) | description BioUltra, ≥99.5% (AT) |
| form powder or crystals | form powder | form solid | form solid |
| assay ≥99% trace metals basis | assay 99.999% trace metals basis | assay ≥99.5% (AT) | assay ≥99.5% (AT) |
| Quality Level 200 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| mp 734 °C (lit.) | mp 734 °C (lit.) | mp 734 °C (lit.) | mp 734 °C (lit.) |
| pH 5-6 (25 °C, 119 g/L) | pH - | pH 5.0-7.0 (25 °C, 1 M in H2O) | pH 5.0-7.0 (25 °C, 1 M in H2O) |
| vapor pressure <0.01 mmHg ( 20 °C), 1 mmHg ( 795 °C) | vapor pressure <0.01 mmHg ( 20 °C), 1 mmHg ( 795 °C) | vapor pressure <0.01 mmHg ( 20 °C), 1 mmHg ( 795 °C) | vapor pressure <0.01 mmHg ( 20 °C), 1 mmHg ( 795 °C) |
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signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2
Storage Class
13 - Non Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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
Helpful?
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Would like to confirm if the material needs to be dried prior to ftir analysis? And if so what is the drying condition and duration.
1 answer-
Grind the KBr powder very fine in an agate mortar and pestle and dry it in a vacuum oven for approximately 3 hours at 75-80 °C. Following the drying, cool the product in a desiccator and then make a KBr pellet and obtain an IR spectrum to ensure that a baseline with no peaks (no contaminants) is obtained.
Helpful?
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Dear Sr, I want to confirm if the product: https://www.sigmaaldrich.com/AR/es/product/sigald/221864 is suitable for FTIR spectroscopy
1 answer-
Yes. This product is suitable for FT-IR spectroscopy.
Helpful?
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