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
318604
Ammonium chloride-ammonium hydroxide buffer solution
in H2O
Synonym(s):
Ammonium Buffer Solution
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About This Item
form
liquid
Quality Segment
composition
NH4Cl, 1 wt. % , NH4OH, 4 wt. % (pH 10 to 11)
concentration
in H2O
pH
10-11
density
0.99 g/mL at 25 °C
SMILES string
N.N.O.Cl
InChI
1S/ClH.2H3N.H2O/h1H;2*1H3;1H2
InChI key
XEXFVRMLYUDDJY-UHFFFAOYSA-N
Application
Biochem/physiol Actions
1 of 1
This Item | |||
|---|---|---|---|
| description in H2O | description 1.0 M, pH 8.5±0.1 | description volatile buffer, ~1.0 M in H2O | description 1 M, suitable for HPLC, LiChropur™ |
| concentration in H2O | concentration 1.0 M | concentration ~1.0 M in H2O | concentration 1 M |
| Quality Level 100 | Quality Level 200 | Quality Level 200 | Quality Level 100 |
| form liquid | form liquid | form liquid | form liquid |
| pH 10-11 | pH 8.5±0.1 | pH 8.4-8.6 (25 °C) | pH 8.4-8.6 (20 °C in neat) |
| density 0.99 g/mL at 25 °C | density 1.02 g/mL at 25 °C (lit.) | density 1.018 g/mL at 20 °C | density 1.015-1.024 |
| composition NH4Cl, 1 wt. % , NH4OH, 4 wt. % (pH 10 to 11) | composition - | composition - | composition - |
Signal Word
Danger
Hazard Codes
Precautionary Statements
Hazard Classifications
Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1 - Skin Irrit. 2
Storage Class
12 - Non Combustible Liquids
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?
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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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