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
207861
Ammonium carbonate
ACS reagent, ≥30.0% NH3 basis
Synonym(s):
Hartshorn salt
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| Size/SKU | Availability | Price |
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About This Item
grade
ACS reagent
Quality Segment
vapor density
2.7 (vs air)
description
Mixture of variable proportions of ammonium bicarbonate and ammonium carbamate
form
powder or chunks
concentration
≥30.0% NH3
impurities
≤0.005% insolubles, ≤0.01 nonvolatiles
anion traces
chloride (Cl-): ≤5 ppm, sulfate (SO42-): ≤0.002%
cation traces
Fe: ≤5 ppm, heavy metals: ≤5 ppm (by ICP-OES)
SMILES string
N.N.OC(O)=O
InChI
1S/CH2O3.2H3N/c2-1(3)4;;/h(H2,2,3,4);2*1H3
InChI key
PRKQVKDSMLBJBJ-UHFFFAOYSA-N
General description
Application
1 of 1
This Item | |||
|---|---|---|---|
| description ACS reagent, ≥30.0% NH3 basis | description 99.999% trace metals basis | description puriss., meets analytical specification of NF, Ph. Franc., FCC | description United States Pharmacopeia (USP) Reference Standard |
| form powder or chunks | form powder | form powder or crystals | form - |
| Quality Level 200 | Quality Level 100 | Quality Level 100 | Quality Level - |
| grade ACS reagent | grade - | grade puriss. | grade pharmaceutical primary standard |
| cation traces heavy metals: ≤5 ppm (by ICP-OES), Fe: ≤5 ppm | cation traces - | cation traces As: ≤3 mg/kg, Pb: ≤3 mg/kg, Fe: ≤5 mg/kg | cation traces - |
| impurities ≤0.01 nonvolatiles, ≤0.005% insolubles | impurities - | impurities ≤0.05% non-volatile matter, ≤0.0005% heavy metals (as Pb), residual solvents, complies | impurities - |
| anion traces sulfate (SO42-): ≤0.002%, chloride (Cl-): ≤5 ppm | anion traces - | anion traces sulfate (SO42-): ≤50 mg/kg, chloride (Cl-): ≤10 mg/kg | anion traces - |
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Storage Class
11 - Combustible Solids
wgk
WGK 1
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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What is the solubility of ammonium carbonate and ammonium carbonate mono hydrate in water as a function of temperature in the range of 0-40C?
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The solubility of this product in water has not been determined. However, various sources state the material is soluble in water at 0.1g/mL at 25°C. This has not been validated. See the links below to the PubChem listing for each compound. Additional information cited here may be helpful.
Ammonium Carbonate:
https://pubchem.ncbi.nlm.nih.gov/compound/517111#section=TasteAmmonium Carbonate Monohydrate
https://pubchem.ncbi.nlm.nih.gov/compound/86740279Helpful?
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