| send us an inquiry |
| LC5465 Thorin indicator for sulfate titration |
| Order number | Packaging | Quantity | Price € |
| AC32465 | Glass bottle | 5 g | 36.45 |
| Product information | |
| Synonyms | 1-(2-Arsonophenylazo)-2-hydroxy-3,6-naphthalene-disulfonic acid sodium salt, 2-(2-Hydroxy-3,6-disulfo-1-naphthylazo)-benzene-arsonic acid sodium salt |
| Hill Formula | C16H11AsN2Na2O10S2 |
| HS Code | 2931 00 99 |
| EC number | 222-993-1 |
| Molar mass | 576.3 g/mol |
| EC index number | 033-002-00-5 |
| CAS number | 3688-92-4 |
| Chemical and physical data | |
| Solubility | (20 °C) soluble |
| Molar mass | 576.3 g/mol |
| Bulk density | 700 kg/m3 |
| pH value | 6.1 (10 g/l, H2O, 20 °C) |
| Safety information according to GHS | |
| Hazard Statement(s) | H331: Toxic if inhaled. H301: Toxic if swallowed. H410: Very toxic to aquatic life with long lasting effects. |
| Precautionary Statement(s) | P273: Avoid release to the environment. P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. |
| Signal Word | Danger |
| Hazard Pictogram(s) |   |
| Storage class | 6.1A Combustible substances, toxic |
| WGK | WGK 3 highly water endangering |
| Disposal | 9 Carcinogenic compounds and flammable compounds labelled “Highly toxic” or “Toxic”: container F. Alkyl sulfates are carcinogenic; Take particular care to avoid inhalation and skin contact. To neutralize alkyl sulfates, add dropwise (from a dropping funnel) to concentrated ice-cool Ammonia solution (Cat.No. 105426) with vigorous stirring. Before placing in container D, check the pH with pH Universal indicator strips (Cat.No. 109535) |
| Safety information | |
| R Phrase | R 23/25-50/53 Toxic by inhalation and if swallowed.Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Categories of danger | S 20/21-28-45-60-61 When using do not eat, drink or smoke.After contact with skin, wash immediately with plenty of soap and water.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).This material and its container must be disposed of as hazardous waste.Avoid release to the environment. Refer to special instructions/ Safety data sheets. |
| Categories of danger | toxic, dangerous for the environment |
| Hazard Symbol |
|
Toxic
Dangerous for the environment
| Transport information | |
| Declaration (transport by sea) IMDG-Code | UN 3465 ORGANOARSENIC COMPOUND, SOLID, N.O.S.(1-(2-ARSONOPHENYLAZO)-2-HYDROXY-3,6-NAPHTHALENE-DISULFONIC ACID SODIUM SALT), 6.1, II |
| Declaration (transport by air) IATA-DGR | UN 3465 ORGANOARSENIC COMPOUND, SOLID, N.O.S.(1-(2-ARSONOPHENYLAZO)-2-HYDROXY-3,6-NAPHTHALENE-DISULFONIC ACID SODIUM SALT), 6.1, II |
| Specifications | |
| Identity (UV/VIS-Spectrum) | passes test |
| Absorption maximum λ max (Propan-2-ol) | 480 – 490 nm |
| Spec. Absorptivity A 1%/1cm (λmax; 0.0025 %; propan-2-ol; calc. on anhydrous substance) | 250 – 350 |
| Water (according to Karl Fischer) | ≤ 25 % |
| Suitability as indicator (for sulfate titration) | passes test |
 |