103168.0025
Eriochrome blue-black metal indicator
Ürün bilgisi |
Synonyms |
2-Hydroxy-1-(1-hydroxy-2-naphthylazo)-naphthalene-4-sulfonic acid sodium salt |
Hill Formula |
C20H13N2NaO5S |
HS Code |
3204 19 00 |
EC number |
222-639-6 |
Molar mass |
416.39 g/mol |
CAS number |
3564-14-5 |
Kimyasal ve fiziksel veri |
Solubility |
20 g/l (20 °C) |
Molar mass |
416.39 g/mol |
Bulk density |
540 kg/m3 |
pH value |
9.5 (10 g/l, H2O, 20 °C) |
GHS'e göre güvenlik bilgisi |
Hazard Statement(s) |
H319: Causes serious eye irritation. |
Precautionary Statement(s) |
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
Signal Word |
Warning |
Hazard Pictogram(s) |
|
RTECS |
QK2195000 |
Storage class |
10 - 13 Other liquids and solids |
WGK |
WGK 2 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. |
Güvenlik bilgisi |
R Phrase |
R 36
Irritating to eyes. |
Categories of danger |
irritant |
Hazard Symbol |
Irritant |
Toksikolojik veri |
LD 50 oral |
LD50 rat > 5000 mg/kg |
Spesifikasyonlar |
Identity (UV/VIS-Spectrum) |
passes test |
Absorption maximum λ max (buffer pH 10.0) |
634 - 644 nm |
Spec. Absorptivity A 1%/1cm (λmax; 0.025 g/l; buffer pH 10.0; calculated on anhydrous substance) |
220 - 320 |
Loss on drying (110 °C) |
≤ 10 % |
Suitability as indicator (for metal titration) |
passes test |
