This product is not suitable for the Karl-Fischer oven method. Standards are available specifically for the oven method. Regional Technical Service can provide assistance with selecting the correct standard.
1.88050
Water Standard
0.01%, Reference Material for coulometric Karl Fischer Titration 1 g ≙ 0.1 mg H₂O Aquastar®
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10 X 8 ML
117,00 €
10 X 8 ML
139,00 €
117,00 €
Per informazioni sulla disponibilità, contatta il Servizio Clienti.
This product is equipped with an integrated RFID tag in the label for seamless data transfer to the titration instrument.
Informazioni su questo articolo
Codice UNSPSC:
41115601
Numero indice EU:
215-535-7
NACRES:
NA.24
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Servizio Tecnico
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Water Standard 0.01 %, Reference Material for coulometric Karl Fischer Titration 1 g ≙ 0.1 mg H2O Aquastar®
Grado
reference material
Livello qualitativo
agenzia
ISO 17025
Tensione di vapore
10 hPa ( 20 °C)
Nome Commerciale
Aquastar®
Stato
liquid
Temp. autoaccensione
465 °C
Limite di esplosione
1.7-7.5 % (v/v)
Impiego in reazioni chimiche
reaction type: water standard for Karl Fischer titration
Confezionamento
ampule of 10 × 8 mL
tecniche
Karl-Fischer titration: suitable
titration: suitable
P. ebollizione
137 °C/1013 hPa
Punto di fusione
-34 °C (xylene)
Temp. transizione
flash point 25 °C
Solubilità
0.2 g/L
Densità
0.86 g/mL at 20 °C
Formato
single component solution
Temperatura di conservazione
15-25°C
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Questo articolo | 1.88051 | 1.88052 | 1.88054 |
|---|---|---|---|
| grade reference material | grade certified reference material | grade certified reference material | grade certified reference material |
| agency ISO 17025 | agency ISO 17025, 17034 | agency ISO (17025, 17034) | agency ISO 17025, 17034 |
| format single component solution | format single component solution | format single component solution | format neat |
| vapor pressure 10 hPa ( 20 °C) | vapor pressure - | vapor pressure - | vapor pressure - |
| product line Aquastar® | product line Aquastar® | product line Aquastar® | product line Aquastar® |
| form liquid | form liquid | form liquid | form solid |
Descrizione generale
The 0.01% water standard is gravimetrically prepared from high-purity water and reagents. Its characterization is performed at an accredited quality control (QC) laboratory according to DIN EN ISO/IEC 17025. The water content of the standard is measured by direct coulometric Karl Fischer titration.
Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.
In our effort to be more sustainable, we′re going digital with COAs-download them directly from our website. Download your certificate at https://www.sigmaaldrich.com/US/en/documents-search to view certified values, including uncertainty and expiry date.
Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.
In our effort to be more sustainable, we′re going digital with COAs-download them directly from our website. Download your certificate at https://www.sigmaaldrich.com/US/en/documents-search to view certified values, including uncertainty and expiry date.
Applicazioni
It is used as a reference material to verify the accuracy of coulometric Karl Fischer titrators according to ISO 9001 chapter 7.1.5 “Monitoring and measuring resources”. It can also be used to check the accuracy of measured results according to European Pharmacopeia (Ph.Eur.) chapter 2.5.32 “Water Micro Determination”.
Caratteristiche e vantaggi
- Packed in convenient 8 mL glass ampules. Each box contains 10 single-use ampules
- Supplied with a batch-specific digital 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
- Measured and qualified in an ISO/IEC 17025 accredited laboratory
- Directly traceable to SI unit (kg) and verified by secondary reference standards 2890 from NIST
- Shelf life of 18 months
Confezionamento
SKU-pack size numbers ending with a "3" are SmartChemicals with an RFID tag on the label for seamless data transfer to the instrument, e.g. xxxxxx1003 or xxxxxxx 4003. More information on www.sigmaaldrich.com/SmartChemicals.
Risultati analitici
Assay (H₂O): 0.090 - 0.110 mg/g
Note legali
AQUASTAR is a registered trademark of Merck KGaA, Darmstadt, Germany
Prodotti correlati
N° Catalogo
Descrizione
Determinazione del prezzo
Avvertenze
Danger
Indicazioni di pericolo
Consigli di prudenza
Classi di pericolo
Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Asp. Tox. 1 - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT RE 2 Inhalation - STOT SE 3
Organi bersaglio
Respiratory system
Codice della classe di stoccaggio
3 - Flammable liquids
Classe di pericolosità dell'acqua (WGK)
WGK 2
Punto d’infiammabilità (°F)
77.0 °F
Punto d’infiammabilità (°C)
25 °C
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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Articoli
Methods including internal extraction, external extraction, and Karl Fischer oven ensure accurate water content determination by titration.
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.
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Hallo, ist dieser Standard für die Karl-Fischer Ofenmethode geeignet?
1 risposta-
Utile?
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How can I determine the shelf life / expiration / retest date of this product?
1 risposta-
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.pdfUtile?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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
Utile?
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bonjour, avons nous l'information sur la densité du produits en g/cm3? sur la boite ou sur le CoA? merci ref 1.88050
1 risposta-
As stated in the Properties section of the product page, the material has a density of 0.86 g/mL at 20°C.
Utile?
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