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
1.88051
Water Standard
0.1%, Certified Reference Material for coulometric Karl Fischer Titration 1 g ≙ 1 mg H₂O Aquastar®
Sinonimo/i:
Acqua standard 0,1% per titolazione volumetrica Karl Fischer
About This Item
Prodotti consigliati
Nome del prodotto
Acqua standard 0,1%, Certified Reference Material for coulometric Karl Fischer Titration 1 g ≙ 1 mg H₂O Aquastar®
Grado
certified reference material
Livello qualitativo
agenzia
ISO 17025, 17034
Nome Commerciale
Aquastar®
Stato
liquid
Temp. autoaccensione
287 °C (Information refers to the main component.)
Limite di esplosione
1.7-11.5 % (v/v) Information refers to the main component.)
Confezionamento
ampule of 10 × 8 mL
tecniche
Karl-Fischer titration: suitable
titration: suitable
P. ebollizione
119 °C/1013 hPa
Temp. transizione
flash point 31 °C (Information refers to the main component.)
Densità
0.92 g/cm3 at 20 °C
Formato
single component solution
Temperatura di conservazione
15-25°C
Descrizione generale
Per avere accesso ai certificati di accreditamento attuali, siete pregati di visitare la pagina Certificazioni ISO e autovalutazioni della qualità delle sedi
Per prendere visione dei parametri certificati, compresa l′incertezza e la data di scadenza, potete scaricare il vostro certificato da http://www.sigma-aldrich.com.
Applicazioni
Caratteristiche e vantaggi
- Packed in convenient 8 mL glass ampoules with 10 single-use ampoules in a box
- Supplied with a batch-specific certificate of analysis (CoA) having data on exact measured water content of the batch, uncertainty, method of analysis, the NIST batch, and minimum shelf life
- Misurata e convalidata in un laboratorio accreditato secondo gli standard ISO/IEC 17025 e ISO 17034
- Directly traceable to SI unit (kg) and verified by SRM 2890 from NIST
Confezionamento
Risultati analitici
Note legali
Raccomandato
Reagente
Avvertenze
Warning
Indicazioni di pericolo
Consigli di prudenza
Classi di pericolo
Flam. Liq. 3 - STOT SE 3
Organi bersaglio
Central nervous system
Codice della classe di stoccaggio
3 - Flammable liquids
Classe di pericolosità dell'acqua (WGK)
WGK 1
Punto d’infiammabilità (°F)
88.7 °F - closed cup - Information refers to the main ingredient.
Punto d’infiammabilità (°C)
31.5 °C - closed cup - Information refers to the main ingredient.
Certificati d'analisi (COA)
Cerca il Certificati d'analisi (COA) digitando il numero di lotto/batch corrispondente. I numeri di lotto o di batch sono stampati sull'etichetta dei prodotti dopo la parola ‘Lotto’ o ‘Batch’.
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I documenti relativi ai prodotti acquistati recentemente sono disponibili nell’Archivio dei documenti.
Articoli
New Aquastar® Karl Fischer Anolyte for precise and reproducible determination of low water content in the range of 10 ppm to 10000 ppm for cells without a diaphragm.
Methods including internal extraction, external extraction, and Karl Fischer oven ensure accurate water content determination by titration.
SmartChemicals enable wireless CoA data transfer, reducing human error in titration experiments.
Protocolli
Karl Fischer titration offers accurate water content determination in hemp samples compared to the loss on drying method.
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
Helpful?
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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/449/386/product-dating-information-mk.pdfHelpful?
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Can this standard be used for volumetric Karl Fischer titration?
1 answer-
The water content of this standard is determined by coulometric Karl Fischer Titration according to ISO 760. Suitability for use in volumetric Karl Fischer has not been determined and analytical values reported in the Certificate of Analysis apply only to the coulometric method. The Water Standard Oven 1%, product 1.88054, is suitable for both volumetric and coulometric methods. Please see the link below to review this product option:
https://www.sigmaaldrich.com/product/mm/188054Helpful?
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