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POTASSIUM CHROMATE Extra Pure
| Article No. | Grade | Purity | CAS No. | Molecular Formula | Molecular Weight | H.S. Code | Shelf Life |
|---|---|---|---|---|---|---|---|
| SC2839 | Extra Pure | 99% | 7789-00-6 | K2CrO4 | 194.19 | 2841.5090 | 60 Months |
Packings
| 500 g |
Physical Properties
| Physical state at 20 °C | Solid |
| Colour | Yellow |
| Odour | Odorless |
| pH value | 8.5 - 10 at 50 g/l at 20 °C |
| Melting point/ Freezing point [°C] | 971 °C |
| Boiling point [°C] | 1000°C |
| Vapour density | 6.7 |
| Density [g/cm3] | 2.73 |
| Solubility in water [% weight] | 69.9g/100 g water @ 200C |
Specifications
| Appearance | Lemon yellow crystalline powder |
| Assay (oxidimetric) | Min 99% |
| Chloride (Cl) | Max 0.005% |
| Sulphate (SO4) | Max 0.05% |
| Sodium (Na) | Max 0.5% |
| Calcium (Ca) | Max 0.05% |
| Loss on drying (at 105°C) | Max 0.5% |
| pH (5% solution in water) | 8.6 - 9.8 |
Safety Information and Hazard Symbols
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|
|---|---|
| Symbol | GHS07, GHS08, GHS09 |
| Signal Word | Danger |
| UN No. | 3288 |
| IMCO Class No. | 6.1 |
| Packing Group | III |
| Hazardous Statement | H315-H317-H319-H335-H340-H350i-H410 |
| Precaution Statement | P201-P261-P273-P280-P305 + P351 + P338-P308 + P313 |
| Risk Statement | |
| Safety Statement | |
Revision Date : 20-Mar-2017
Certificate of Analysis (COA's)
To download COA please enter the batch number below