1.88052
Water standard 1%
Certified Reference Material for volumetric Karl Fischer Titration 1 g ≙ 10 mg H₂O Aquastar®
Synonym(s):
Water standard 1% for volumetric Karl Fischer Titration
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About This Item
Recommended Products
grade
certified reference material
Quality Level
Agency
ISO (17025, 17034)
product line
Aquastar®
form
liquid
autoignition temp.
287 °C (DIN 51794,Information refers to the main component.)
expl. lim.
1.7 % (v/v)
reaction suitability
reaction type: water standard for Karl Fischer titration
packaging
ampule of 10 × 8 mL
technique(s)
Karl-Fischer titration: suitable
titration: suitable
1 of 4
This Item | 188051 | 188054 | 00612 |
|---|---|---|---|
| grade certified reference material | grade certified reference material | grade certified reference material | grade - |
| agency ISO (17025, 17034) | agency ISO 17025, 17034 | agency ISO 17025, 17034 | agency - |
| format single component solution | format single component solution | format neat | format - |
| product line Aquastar® | product line Aquastar® | product line Aquastar® | product line - |
| form liquid | form liquid | form solid | form - |
| autoignition temp. 287 °C (DIN 51794,Information refers to the main component.) | autoignition temp. 287 °C (Information refers to the main component.) | autoignition temp. - | autoignition temp. - |
General description
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.
Application
- Evaluating the accuracy of coulometric Karl Fischer titrators according to ISO 9001 chapter 7.1.5 “Monitoring and measuring resources” as a Certified reference material (CRM)
- Checking the accuracy of measured results according to European Pharmacopeia (Ph.Eur.) chapter 2.5.32 “Water Micro Determination”
- Standardizing titrants according to European Pharmacopeia (Ph.Eur.) chapter 2.5.12 “Water Semi-Micro Determination” and the United States Pharmacopeia <921> “Water Determination”
- Titer determinations using volumetric method with one component and two component reagents
Features and Benefits
- Packed in convenient 8 mL glass ampoules and 10 single-use ampoules in a box
- Supplied with a batch-specific digital certificate of nalysis (CoA) having data on the 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 and ISO 17034 accredited calibration laboratory
- Directly traceable to SI unit (kg) and verified by SRM 2890 from NIST
Packaging
Analysis Note
Legal Information
related product
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Flam. Liq. 3 - STOT SE 3
Target Organs
Central nervous system
Storage Class Code
3 - Flammable liquids
WGK
WGK 1
Flash Point(F)
87.8 °F - Information refers to the main ingredient.
Flash Point(C)
31 °C - Information refers to the main ingredient.
Regulatory Information
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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Articles
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.
Protocols
This protocol describes a one-component Volumetric Karl Fischer Titration method for the determination of water content in Benserazide hydrochloride.
Foodstuffs often provide a challenge for the water determination by Karl-Fischer. Instant Coffee is such a sample matrix and its water content has influence on quality and shelf life.
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
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