For some European Pharmacopoeia (Ph Eur or EP) procedures, a 0.2 Molar solution is required. So one would dissolve 40.84 grams of this product in some amount of pure water (e.g., 800 mL) in a 1 Liter volumetric flask, bring it to volume with additional pure water, and mix.
A 0.1 Molar solution would therefore require 20.42 grams in 1 Liter of solution.
Wybierz wielkość
| Gabaryty przesyłki | SKU | Dostępność | Cena netto |
|---|---|---|---|
| 250 g | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 376,00 zł | |
| 1 kg | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 939,00 zł |
Informacje o tej pozycji
376,00 zł
Quality Level
grade
reagent grade
agency
reag. Ph. Eur.
product line
EMSURE®
assay
≥99.5% dry basis (perchloric acid titration)
form
solid
potency
>3200 mg/kg LD50, oral (Rat)
impurities
≤0.005% In water insoluble matter
loss
≤0.2% loss on drying, 105°C
pH
4.0 (20 °C, 50 g/L in H2O)
mp
295-300 °C
solubility
water: soluble (93 g/l (86 °F / 30 °C))
density
1.636 g/cm3
bulk density
900 kg/m3
anion traces
chloride (Cl-): ≤0.002%, sulfur compounds (as SO42-): ≤0.005%
cation traces
Cu: ≤0.0002%, Fe: ≤0.0005%, Na: ≤0.01%, Pb: ≤0.0005%, heavy metals (as Pb): ≤0.0005%
storage temp.
2-30°C
SMILES string
[K+].[O-]C(=O)c1c(cccc1)C(=O)[O-].[H+]
InChI
1S/C8H6O4.K/c9-7(10)5-3-1-2-4-6(5)8(11)12;/h1-4H,(H,9,10)(H,11,12);/q;+1/p-1
InChI key
IWZKICVEHNUQTL-UHFFFAOYSA-M
Application
- Metoda kulometryczna z miareczkową analizą zanieczyszczeń i metodą bilansu masy: W niniejszym opracowaniu przedstawiono metodę konwersji czystości kwasometrycznej na czystość chemiczną dla wodoroftalanu potasu, która jest walidowana przy użyciu technik ilościowego magnetycznego rezonansu jądrowego (qNMR), co poprawia standardy chemii analitycznej (Huang T et al., 2023).
- Stany trypletowe nieliniowego chromoforu optycznego DCM w monokryształach: Bada trypletowe stany wzbudzone nieliniowego chromoforu optycznego DCM w monokryształach wodoroftalanu potasu, łącząc te stany z jednocząsteczkowymi stanami ciemnymi, istotnymi dla rozwoju materiałów optycznych (Barbon A et al., 2009).
Analysis Note
Tożsamość (spektrum IR): pozytywny wynik testu
W substancjach nierozpuszczalnych w wodzie: ≤ 0,005 %
Chlorek (Cl): ≤ 0,002 %
Związki siarki (jako SO₄): ≤ 0.005 %
Metale ciężkie (jako Pb): ≤ 0,0005 %
Cu (miedź): ≤ 0,0002 %
Fe (żelazo): ≤ 0,0005 %
Na (sód): ≤ 0.01 %
Pb (Ołów): ≤ 0,0005 %
Strata przy suszeniu (105°C): ≤ 0,2 %
Odpowiada Reag. Ph Eur
Legal Information
1 of 1
Ta pozycja | ||
|---|---|---|
| form solid | form crystals | form powder or crystals |
| assay ≥99.5% dry basis (perchloric acid titration) | assay - | assay ≥99.5% (T) |
| solubility water: soluble (93 g/l (86 °F / 30 °C)) | solubility - | solubility H2O: 0.1 M at 20 °C, clear, colorless |
| Quality Level 300 | Quality Level 100 | Quality Level 200 |
| grade reagent grade | grade certified reference material | grade - |
| mp 295-300 °C | mp 295-300 °C (dec.) (lit.) | mp 295-300 °C (dec.) (lit.) |
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Klasa składowania
11 - Combustible Solids
wgk
WGK 1
flash_point_f
387.1 °F - Pensky-Martens closed cup
flash_point_c
197.3 °C - Pensky-Martens closed cup
Certyfikaty analizy (CoA)
Poszukaj Certyfikaty analizy (CoA), wpisując numer partii/serii produktów. Numery serii i partii można znaleźć na etykiecie produktu po słowach „seria” lub „partia”.
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Protokoły
Spectrophotometric Griess assay protocol for quantitative nitrite analysis in dried meat after extraction with potassium hydrogen phthalate.
Photometric determination using the Griess method subsequent to extraction
Numer pozycji handlu globalnego
| SKU | NUMER GTIN |
|---|---|
| 1048749012 | 04027269691516 |
| 1048740250 | 04022536056166 |
| 1048749050 | 04022536056197 |
| 1048741000 | 04022536056173 |
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How is this scaled when mixing it with water? How much of the salt is needed in 1 L water?
1 answer-
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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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