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PAR INDICATOR AR/ACS 4-(2-Pyridylazo)-resorcinol monosodium salt
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Description
| Article No. | 05115 | Grade | AR/ACS |
| Purity | CAS No. | 16593-81-0 | |
| Molecular Formula | C11H8N3NaO2.H2O | Molecular Weight | 255.21 |
| H.S. Code | 2933.3990 | Shelf Life | 60 Months |
Physical Properties
| Physical state at 20 °C | Solid | Colour | Orange crystalline | ||||
| Odour | Odorless | Solubility in water [% weight] | Soluble in water | ||||
Specifications
| Appearance | An orange to brown crystalline powder | Clarity of Solution ( 0.1 g/100 ml; water | Not more than a trace of turbidity or insoluble matter should remain |
| Suitability (as complexometric indicator) | Passes test | Absorption maxima | 411 – 415 nm (in distilled water) |
| Absorptivity | Min 1300 ( 1%/1cm ;distilled water) | Loss on drying (at 110°C; 1 hr) | Max 8.0 |
Safety Information and Hazard Symbols
 |
Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H315-H319-H335
Precaution Statement: P261-P305 + P351 + P338
Signal Word: Warning
Hazardous Statement: H315-H319-H335
Precaution Statement: P261-P305 + P351 + P338
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