| Specifications | |
|---|---|
| Appearance | greyish white to brownish white powder |
| Assay (acidimetric, calc. on anhydrous substance) | ≥ 98.5 % |
| Identity (IR-spectrum) | passes test |
| Appearance of solution (5 %; water) | passes test |
| Water (according to Karl Fischer) | 8.5 - 9.5 % |
| Sensitivity (of formaldehyde) | passes test |
| Sensitivity (of nitrate) | passes test |
Log in
Register
| Replacement Information | |
|---|---|
| Replacement Information | In North America 102498.0025 replaces and has a superior specification to DX1460-1 |
Key Spec Table
| CAS # | EC Number | Hill Formula | Molar Mass | Grade Value |
|---|---|---|---|---|
| 5808-22-0 | 204-972-9 | C₁₀H₆Na₂O₈S₂ * 2 H₂O | 400.30 g/mol | ACS,Reag. Ph Eur |
| Description | |
|---|---|
| Catalogue Number | 102498 |
| Replaces | DX1460-1 |
| Synonyms | 4,5-Dihydroxy-2,7-naphthalene disulfonic acid sodium salt |
| Product Information | |
|---|---|
| CAS number | 5808-22-0 |
| EC number | 204-972-9 |
| Grade | ACS,Reag. Ph Eur |
| Hill Formula | C₁₀H₆Na₂O₈S₂ * 2 H₂O |
| Molar Mass | 400.30 g/mol |
| HS Code | 2908 99 00 |
| Structure formula Image | |
| Applications | |
|---|---|
| Application | Chromotropic acid disodium salt dihydrate for analysis ACS,Reag. Ph Eur. CAS 5808-22-0, pH 3.6 (10 g/l, H₂O, 20 °C). MSDS and product info below. |
| Physicochemical Information | |
|---|---|
| Melting Point | >300 °C |
| pH value | 3.6 (10 g/l, H₂O, 20 °C) |
| Bulk density | 780 kg/m3 |
| Solubility | 170 g/l |
| Safety Information according to GHS | |
|---|---|
| Storage class | 10 - 13 Other liquids and solids |
| WGK | WGK 1 slightly water endangering |
| Disposal | 3 Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C. |
| Storage and Shipping Information | |
|---|---|
| Storage | Store below +30°C. |
| Transport Information | |
|---|---|
| Declaration (railroad and road) ADR, RID | Kein Gefahrgut |
| Declaration (transport by air) IATA-DGR | No Dangerous Good |
| Declaration (transport by sea) IMDG-Code | No Dangerous Good |
 |
||||
|
