Key Spec Table
| CAS # | Grade Value |
|---|
| 7784-46-5 | Reag. USP |
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| Description |
|---|
| Catalogue Number | 106277 |
| Product Information |
|---|
| CAS number | 7784-46-5 |
| Grade | Reag. USP |
| HS Code | 3822 90 00 |
| Quality Level | MQ200 |
| Physicochemical Information |
|---|
| Density | 1.005 g/m3 (20 °C) |
| pH value | 9.3 (H₂O, 20 °C) |
| Safety Information according to GHS |
|---|
| Hazard Pictogram(s) | |
| Hazard Statement(s) | H350: May cause cancer.H412: Harmful to aquatic life with long lasting effects. |
| 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 Word | Danger |
| Storage class | 6.1B Non-combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials |
| WGK | WGK 3 highly hazardous to water |
| Disposal | 15Heavy metal-containing solutions and solids: container E. Stir Raney nickel (also: Urushibara nickel) in the form of an aqueous suspension into hydrochloric acid (Cat. No. 100312) until dissolved (container E). Neither Raney nickel itself nor any filter residues should be allowed to dry out, otherwise they will spontaneously ignite in air. In this context, heavy metal means any compound of antimony, arsenic, cadmium, chromium(VI), copper, lead, nickel and tin, as well as these subtances in metallic form, if they are classified as hazardous (acc. to AbfallverzeichnisV - Waste Catalogue Ordinance, Appendix 3). Other heavy metals should be collected separately. |
| Safety Information |
|---|
| Categories of danger | carcinogenic, harmful, dangerous for the environment |
| Storage and Shipping Information |
|---|
| Storage | Store at +15°C to +25°C. |
| Transport Information |
|---|
| Declaration (railroad and road) ADR, RID | UN 1686, 6.1, II |
| Declaration (transport by air) IATA-DGR | UN 1686, 6.1, II |
| Declaration (transport by sea) IMDG-Code | UN 1686, 6.1, II |
| Specifications |
|---|
| Volumetric solution in accordance to the chapter reagents of the Pharmacopoeia (USP). |
| Form | liquid |
| Amount-of-substance concentration | 0.04975 - 0.05025 |
| Measurement uncertainty | +/- 0.00015 |
| Traceability | NIST 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 iodine solution (article number 1.09099). The iodine solution is standardized by sodium thiosulfate solution (article number 1.09147) which has been standardized against volumetric standard potassium iodate (article number 1.02404).This volumetric solution is 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. |
