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
1.09257
Aquastar® CombiCoulomat fritless
reagent for coulometric Karl Fischer titration for cells with and without diaphragm, Aquastar®
Synonim(y):
Bezfrytowy odczynnik Karla Fischera
Wybierz wielkość
| Gabaryty przesyłki | SKU | Dostępność | Cena netto |
|---|---|---|---|
| 500 mL | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 604,00 zł | |
| 2.5 L | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 2600,00 zł |
Informacje o tej pozycji
604,00 zł
Nazwa produktu
CombiCoulomat fritless, Karl Fischer reagent for coulometric water determination for cells with and without diaphragm Aquastar®
material
diaphragm (No)
Quality Segment
product line
Aquastar®
form
liquid
reaction suitability
reaction type: coulometric
technique(s)
Karl-Fischer titration: suitable, titration: suitable
pH
5.5 (20 °C in H2O)
transition temp
flash point 12 °C
density
0.92 g/cm3 at 20 °C
storage temp.
15-25°C
Analysis Note
Legal Information
1 of 1
Ta pozycja | ||
|---|---|---|
| reaction suitability reaction type: coulometric | reaction suitability reaction type: coulometric | reaction suitability - |
| technique(s) Karl-Fischer titration: suitable | technique(s) Karl-Fischer titration: suitable | technique(s) - |
| storage temp. 15-25°C | storage temp. 15-25°C | storage temp. - |
| density 0.92 g/cm3 at 20 °C | density 0.90 g/cm3 at 20 °C | density - |
| pH 5.5 (20 °C in H2O) | pH 5 (20 °C in H2O) | pH - |
| material diaphragm (No) | material diaphragm (Yes) | material - |
signalword
Danger
Hazard Classifications
Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Chronic 3 - Flam. Liq. 2 - STOT SE 1
Klasa składowania
3 - Flammable liquids
wgk
WGK 3
flash_point_f
53.6 °F
flash_point_c
12 °C
Wykazy regulacyjne
Wykazy regulacyjne dotyczą głównie produktów chemicznych. Można w nich podawać ograniczoną liczbę informacji na temat produktów niechemicznych. Brak wpisu oznacza, że żaden ze składników nie znajduje się w wykazie. Użytkownik odpowiada za zagwarantowanie bezpiecznego i zgodnego z prawem stosowania produktu.
75-25-2 + 67-56-1
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”.
Masz już ten produkt?
Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.
Protokoły
Summary application report for analysis of moisture in 2-Methylpiperidine
Determination of Water Content in D(+)-lactose-monohydrate Using Karl Fischer Titration
Summary application report for analysis of moisture in Dichloromethane, methylene chloride
Produkty
Metody obejmujące ekstrakcję wewnętrzną, ekstrakcję zewnętrzną i piec Karla Fischera zapewniają dokładne oznaczanie zawartości wody poprzez miareczkowanie.
Powiązane treści
Miareczkowanie Karla Fischera określa zawartość wody w surowcach i produktach, co jest szeroko stosowaną metodą analityczną.
Karl Fischer titration determines water content in raw materials and products, a widely used analytical method.
Numer pozycji handlu globalnego
| SKU | NUMER GTIN |
|---|---|
| 1092572500 | 04022536112619 |
| 1092570500 | 04022536112602 |
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
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Is the equivalence valor 1 for titrant reactions that uses this composite?
1 answer-
This product has an equivalence value of 1.
Helpful?
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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
Helpful?
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Why is SO2 not listed on the SDS? Isn't SO2 required in Karl Fischer reaction?
1 answer-
While sulfur dioxide (SO2) is added to Karl Fischer reagents during production, it is not listed in their composition in the Safety Data Sheet (SDS). This is because when all components are mixed, SO2 immediately reacts with the alcohol (R-OH, such as methanol) and the base (R'N), resulting in the formation of [RN]SO3CH3 according to reaction below:
R-OH + SO2 + R'N → [RN]SO3CH3 (reaction after production)
SO2 is vital for the reaction in Karl Fischer titration, as the reaction will not proceed without it. However, the SO2 present in the reagent is bound in the form of [RN]SO3CH3, and there is no free SO2 (SO2(g)/SO3-) present in any Karl Fischer reagent.
Helpful?
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