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
Fortfahren mit
Größe auswählen
| Ihnen/SKU | Verfügbarkeit | Preis |
|---|---|---|
250 g | Warenkorb auf Verfügbarkeit prüfen | € 40,30 |
1 kg | Warenkorb auf Verfügbarkeit prüfen | € 61,00 |
2.5 kg | Warenkorb auf Verfügbarkeit prüfen | € 116,00 |
20 kg | Warenkorb auf Verfügbarkeit prüfen | € 454,00 |
25 kg | Warenkorb auf Verfügbarkeit prüfen | Anfragen |
50 kg | Warenkorb auf Verfügbarkeit prüfen | Anfragen |
Über diesen Artikel
grade
puriss.
Quality Segment
assay
99.0-100.5%, 99.0-101.0% (calc. on dry substance)
form
solid
quality
meets analytical specification of Ph. Eur., BP, USP
impurities
alkalic reac. substances, complies, ≤0.001% heavy metals (as Pb), ≤0.04% insoluble in ethanol, ≤0.05% ammonium (NH4), ≤0.1% biuret(carbamylurea)
ign. residue
≤0.1% (as SO4)
loss
≤1.0% loss on drying, 105 °C, 1 h
mp
132-135 °C
solubility
H2O: soluble 480 g/L at 20 °C
density
1.335 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤10 mg/kg, sulfate (SO42-): ≤50 mg/kg
cation traces
Fe: ≤0.5 mg/kg
suitability
in accordance for appearance of solution, in accordance for identity
functional group
amine
SMILES string
NC(N)=O
InChI
1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)
InChI key
XSQUKJJJFZCRTK-UHFFFAOYSA-N
General description
Harnstoff kann im Haber-Bosch-Verfahren aus Ammoniak und Kohlendioxid hergestellt werden. Er eignet sich auch zur Herstellung von Harnstoff-Formaldehyd-Harzen mittels einer Kondensationsreaktion.
Application
1 of 1
Dieser Artikel | |||
|---|---|---|---|
| assay 99.0-100.5%, 99.0-101.0% (calc. on dry substance) | assay ≤0.001% (Heavy Metals by ICP-OES, metals basis), 99.0-100.5% | assay ≥99.5% | assay ≥98% |
| Quality Level 200 | Quality Level 200 | Quality Level 300 | Quality Level 100 |
| solubility H2O: soluble 480 g/L at 20 °C | solubility H2O: soluble 480 g/L at 20 °C | solubility H2O: 8 M | solubility water: soluble |
| form solid | form solid | form pellets | form solid |
| density 1.335 g/mL at 25 °C (lit.) | density 1.335 g/mL at 25 °C (lit.) | density 1.335 g/mL at 25 °C (lit.) | density 1.335 g/mL at 25 °C (lit.) |
| mp 132-135 °C | mp 132-135 °C (lit.) | mp 132-135 °C (lit.) | mp 132-135 °C (lit.) |
Still not finding the right product?
Explore all of our products under Harnstoff
Lagerklasse
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
Hier finden Sie alle aktuellen Versionen:
Besitzen Sie dieses Produkt bereits?
In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.
-
How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
-
-
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?
-
