The minimum purity specification for this product is 99%. The lot specific purity is listed in the Certificate of Analysis. Please navigate to the ‘DOCUMENTATION’ section of the Product Detail Page to access a Certificate under ‘Certificate of Analysis’ or click the link below:
https://www.sigmaaldrich.com/product/mm/106469#product-documentation
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| Ihnen/SKU | Verfügbarkeit | Preis |
|---|---|---|
1 kg | Warenkorb auf Verfügbarkeit prüfen | € 90,60 |
5 kg | Warenkorb auf Verfügbarkeit prüfen | € 328,00 |
12 kg | Warenkorb auf Verfügbarkeit prüfen | € 671,00 |
50 kg | Warenkorb auf Verfügbarkeit prüfen | € 1.630,00 |
Über diesen Artikel
grade
ACS reagent
Quality Segment
agency
reag. ISO, reag. Ph. Eur.
vapor density
>1 (vs air)
vapor pressure
<18 mmHg ( 20 °C), 3 mmHg ( 37 °C)
product line
EMSURE®
assay
97.0-100.5% (total alkilinity calculated as NaOH)
form
pellets
impurities
≤0.0003% Total nitrogen (N)
pH
>14 (20 °C, 100 g/L in H2O)
mp
318 °C (lit.)
solubility
water: 1090 g/L at 20 °C
density
2.13 g/cm3 at 20 °C
anion traces
phosphate (PO43-): ≤0.0005%, carbonate (as Na2CO3): ≤1.0%, chloride (Cl-): ≤0.005%, silicate (as SiO2): ≤0.01%, sulfate (SO42-): ≤0.003%
cation traces
Al: ≤0.0005%, As: ≤0.0001%, Cu: ≤0.0002%, Hg: ≤0.00001%, K: ≤0.020%, Mg: ≤0.0005%, Zn: ≤0.001%, Ca: ≤0.002%, Fe: ≤0.0010%, Ni: ≤0.00025%, Pb: ≤0.001%, heavy metals (as Ag): ≤0.002%
SMILES string
[OH-].[Na+]
storage temp.
2-30°C
InChI
1S/Na.H2O/h;1H2/q+1;/p-1
InChI key
HEMHJVSKTPXQMS-UHFFFAOYSA-M
Application
- Biosorbent derived from coffee husk for efficient removal of toxic heavy metals from wastewater: Forschende entwickelten ein Biosorbens aus Kaffeespelzen, um Schwermetalle aus Abwasser zu entfernen. Natriumhydroxid spielt eine entscheidende Rolle bei der chemischen Aktivierung der Kaffeespelzen und verbessert dadurch ihre Adsorptionskapazität (Quyen et al., 2021).
- Development of Advanced Chemometric-Assisted Spectrophotometric Methods for the Determination of Cromolyn Sodium and Its Alkaline Degradation Products: In diesem Artikel werden fortschrittliche spektralphotometrische Methoden zur Analyse von Cromolyn-Natrium und seiner Abbauprodukte vorgestellt. Natriumhydroxid wird verwendet, um den Abbau von Cromolyn-Natrium zu induzieren und seine Abbauprodukte zu untersuchen (El Zahar et al., 2020).
- High resolution and high throughput analytical methods for d-tagatose and process related impurities using capillary electrophoresis: In der Studie wurden Kapillarelektrophoresemethoden zur Analyse von D-Tagatose und ihren Verunreinigungen entwickelt. Natriumhydroxid wird als Elektrolyt verwendet, um die Trennung und Auflösung bei der Elektrophorese zu verbessern (Surapureddi et al., 2020).
- Phosphorus in recycling fertilizers - analytical challenges: Diese Forschungsarbeit befasst sich mit den analytischen Herausforderungen bei der Bestimmung von Phosphor beim Recycling von Düngemitteln. Natriumhydroxid wird zur Einstellung des pH-Werts von Proben verwendet, was für eine genaue Phosphor-Quantifizierung entscheidend ist (Krüger und Adam, 2017).
Analysis Note
Gehalt (Gesamtalkali, ber. als NaOH)): 99 - 100 %
Identität: entspricht
Aussehen der Lösung: entspricht
Carbonat (als Na₂CO₃): ≤ 0,5 %
Chlorid (Cl): ≤ 0,0005 %
Phosphat (PO₄): ≤ 0,0005 %
Silicat (SiO₂): ≤ 0,001 %
Sulfat (SO₄): ≤ 0,0005 %
Gesamtstickstoff (N): ≤ 0,0003 %
Schwermetalle (als Ag): ≤ 0,0005 %
Schwermetalle (als Pb): ≤ 0,0005 %
Al (Aluminium): ≤ 0,0005 %
As (Arsen): ≤ 0,0001 %
Ca (Calcium): ≤ 0,0005 %
Cu (Kupfer): ≤ 0,0002 %
Fe (Eisen): ≤ 0,0005 %
Hg (Quecksilber): ≤ 0,00001 %
K (Kalium): ≤ 0,020 %
Mg (Magnesium): ≤ 0,0005 %
Ni (Nickel): ≤ 0,0005 %
Pb (Blei): ≤ 0,0005 %
Zn (Zink): ≤ 0,001 %
Other Notes
Legal Information
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Dieser Artikel | |||
|---|---|---|---|
| description pellets for analysis (max. 0.02% K) EMSURE® ACS,Reag. Ph Eur,ISO | description pellets, EMPROVE® EXPERT, Ph. Eur., BP, ChP, NF, JP | description pellets, semiconductor grade, 99.99% trace metals basis | description puriss., meets analytical specification of Ph. Eur., BP, NF, 98-100.5%, pellets |
| grade ACS reagent | grade - | grade semiconductor grade | grade - |
| assay 99-100% (total alkilinity calculated as NaOH) | assay ≥98.0-100.5% (total alkilinity calculated as NaOH) | assay 99.99% trace metals basis | assay 98-100.5% |
| agency reag. ISO, reag. Ph. Eur. | agency BP, ChP, JP, NF, Ph. Eur. | agency - | agency - |
| Quality Level 300 | Quality Level 500 | Quality Level 200 | Quality Level 200 |
| form pellets | form pellets, solid | form pellets | form pellets |
| solubility water: 1090 g/L at 20 °C | solubility water: 1090 g/L at 20 °C | solubility water: soluble 1,260 g/L at 20 °C | solubility water: soluble 1260 g/L at 20 °C |
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signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Lagerklasse
8B - Non-combustible corrosive hazardous materials
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In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.
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What's its purity?
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
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.pdfHelpful?
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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
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How does the pellet size of the discontinued product SX0590 compare to the replacement product 106469?
1 answer-
The pellet size for both 106469 and SX0590 is approximately 5 mm, indicating that they are the same size.
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