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109119 重鉻酸鉀 溶液

for determination of COD c(K₂Cr₂O₇) = 0.020 mol/l Titripur®

重鉻酸鉀 溶液 MSDS (material safety data sheet) or SDS, CoA and CoQ, dossiers, brochures and other available documents.
109119
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Overview

Replacement Information

Products

Catalogue NumberPackaging Qty/Pack
1.09119.1000 塑膠瓶 1 l
Description
Catalogue Number109119
References
Product Information
HS Code2841 50 00
Quality LevelMQ200
Applications
Biological Information
Physicochemical Information
Density1.0 g/cm3 (20 °C)
pH value3.8 (H₂O, 20 °C)
Dimensions
Materials Information
Toxicological Information
Safety Information according to GHS
Hazard Pictogram(s) Hazard Pictogram(s)
Hazard Statement(s)H340: May cause genetic defects.
H350: May cause cancer.
H360FD: May damage fertility. May damage the unborn child.
H412: Harmful to aquatic life with long lasting effects.
EUH208: May produce an allergic reaction.
Precautionary Statement(s)P202: Do not handle until all safety precautions have been read and understood.
P273: Avoid release to the environment.
P280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection.
P308 + P313: IF exposed or concerned: Get medical advice/ attention.
P405: Store locked up.
P501: Dispose of contents/ container to an approved waste disposal plant.
Signal WordDanger
Storage class6.1D Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
WGKWGK 3 highly hazardous to water
Disposal22
Inorganic peroxides and oxidants as well as bromine and iodine should be rendered harmless by reduction with acidic sodium thiosulfate solution (Cat. No. 106513); container D or E. Slightly soluble oxidants should be collected separately in container E or I.
Safety Information
Categories of dangercarcinogenic, mutagenic, harmful, dangerous for the environment
Product Usage Statements
Storage and Shipping Information
StorageStore at +15°C to +25°C.
Packaging Information
Transport Information
Supplemental Information
Specifications
Formliquid
Amount-of-substance concentration0.0199 - 0.0201 mol/l
Measurement uncertainty+/- 0.00006
TraceabilityNIST SRM
The amount-of-substance concentration of this volumetric solution is analyzed by our quality control laboratory of Merck KGaA, Darmstadt, Germany according to DIN EN ISO/IEC 17025.
The concentration is determined by volumetric titration and refers to 20°C.
The amount-of-substance concentration of this volumetric solution is determined with standardized sodium thiosulfate solution (article number 1.09147). The sodium thiosulfate solution is standardized and traceable to a primary standard reference material (SRM) from the National Institute of Standards and Technology, Gaithersburg, USA (NIST SRM 136 potassium dichromate) by means of volumetric standard potassium iodate (article number 1.02404), certified reference material according to ISO 17034, analyzed by our accredited calibration laboratory of Merck KGaA, Darmstadt, Germany according to DIN EN ISO/IEC 17025. The uncertainty is expressed as expanded measurement uncertainty with a coverage factor k=2 covering a confidence level of 95%.
Note: The titer is a correction factor to correct for variations of the volumetric solution, the titration equipment, the temperature and other laboratory conditions. For correct titration results it is recommended to determine a titer with the laboratory specific equipment and under laboratory specific conditions directly after opening a new bottle and at regular time intervals.
Global Trade Item Number
Catalogue Number GTIN
1.09119.1000 04022536110820