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
09682
Ammonia
puriss., anhydrous, ≥99.95%
Synonym(s):
Ammonia gas
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| Pack Size | SKU | Availability | Price |
|---|
About This Item
vapor density
0.6 (vs air)
Quality Level
vapor pressure
8.75 atm ( 21 °C)
grade
puriss.
assay
≥99.95%
autoignition temp.
1203 °F
expl. lim.
25 %
impurities
≤0.01% water
bp
−33 °C (lit.)
mp
−78 °C (lit.)
SMILES string
N
InChI
1S/H3N/h1H3
InChI key
QGZKDVFQNNGYKY-UHFFFAOYSA-N
Application
- Ammonia can be used in the direct synthesis of primary amines from alcohols.
- Synthesis of N-doped graphene by vapor deposition in the presence of ammonia gas has been reported.[1]
Packaging
Other Notes
1 of 1
This Item | |||
|---|---|---|---|
| assay ≥99.95% | assay - | assay - | assay - |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 200 |
| mp −78 °C (lit.) | mp - | mp - | mp - |
| bp −33 °C (lit.) | bp 60 °C | bp - | bp - |
| autoignition temp. 1203 °F | autoignition temp. - | autoignition temp. - | autoignition temp. - |
| grade puriss. | grade - | grade - | grade - |
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 3 Inhalation - Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1 - Flam. Gas 2 - Press. Gas Liquefied gas - Skin Corr. 1B
supp_hazards
Storage Class
2A - Gases
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 236594-1G | 04061837007095 |
| 236594-5G | 04061837007101 |
| 09682-1KG | 04061838657077 |
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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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