Description
Reagent for thorium,beryllium and certain other metals.
1-(2-Arsonophenylazo)-2-naphthol-3,6-disulfonic acid disodium salt; 2-(2-Hydroxy-3,6-disulfo-1-naphthylazo)phenylarsonic acid disodium salt; 2-(3,6-Disulfo-2-hydroxy-1-naphthylazo)benzenearsonic acid disodium salt; APANS; Thoron(ol)
| CAS | 3688-92-4 |
| Molecular Formula | C16H11AsN2Na2O10S2 |
| Molecular Weight | 576.30 |
| Shelf Life | 60 Months |
| Physical Properties | |||
| Physical State at 20 °C | Solid | Colour | Brownish red powder |
| Odour | Odorless | Solubility in Water [% weight] | Appreciable (> 10%) |
| Specifications | |||
| Appearance | Brownish red powder / Orange red powder | Absorption Maxima in H2O | 480 – 490 nm |
| Specific Absorptivity 1%/1Cm (At Lmax) | Min 200% | Water (By Kf) | 19 – 25% |
| Dangerous Goods Information | |||
| UN Number | 3465 | DG Class | 6.1 |
| Safety Information & Hazard Symbols | |
| Symbol | GHS06, GHS09 |
| Signal Word | Danger |
| Hazard Statement | H301-H331-H410 |
| Precaution Statement | P261-P273-P301 + P310-P311-P501 |















