Merck 103170 0025 Eriochrome Black T (C.i. 14645) indicator For Complexometry Acs,Reag. Ph Eur 25 GR.

48,53€ ( KDV HARİÇ )

indicator for complexometry ACS,Reag. Ph Eur CAS #: 1787-61-7 EC Number: 217-250-3

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Description
Catalogue Number	103170
Replaces	EX0100-5; EX0100
Synonyms	Chrome black T, 2-Hydroxy-1-(1-hydroxy-2-naphthylazo)-6-nitronaphthalene-4-sulfonic acid sodium salt

Physicochemical Information
pH value	3.7 (10 g/l, H₂O, 20 °C)
Bulk density	400 – 600 kg/m3
Solubility	50 g/l

Toxicological Information
LD 50 oral	LD50 Rat 17590 mg/kg

Safety Information according to GHS
Hazard Pictogram(s)
Hazard Statement(s)	H319: Causes serious eye irritation. H411: Toxic to aquatic life with long lasting effects.
Precautionary Statement(s)	P264: Wash skin thoroughly after handling. P273: Avoid release to the environment. P280: Wear eye protection/ face protection. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P337 + P313: If eye irritation persists: Get medical advice/ attention. P391: Collect spillage. P501: Dispose of contents/ container to an approved waste disposal plant.
Signal Word	Warning
Storage class	10 – 13 Other liquids and solids
WGK	WGK 2 obviously hazardous to water
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.

Safety Information
Categories of danger	irritant, dangerous for the environment

Storage and Shipping Information
Storage	Store at +15°C to +25°C.

Transport Information
Declaration (railroad and road) ADR, RID	UN 3077 , 9, III
Declaration (transport by air) IATA-DGR	UN 3077 , 9, III
Declaration (transport by sea) IMDG-Code	UN 3077 , 9, III, Marine Pollutant: P

Specifications
Identity (UV/VIS-Spectrum)	passes test
Appearance	Black to dark brown-black fine powder, eventually with granular parts
Clarity of solution	passes test
Absorption maximum λ_max. (buffer pH 10.0)	612 – 616 nm
Spec. Absorptivity A 1%/1cm (λ_max; 0.02 g/l; buffer pH 10.0; calc. on dried substance)	400 – 510
Loss on drying (110 °C)	≤ 7 %
Suitability as indicator (for complexometric titration, ACS)	passes test
Suitability as indicator (Reag. Ph Eur)	passes test

Merck 103170 0025 Eriochrome Black T (C.i. 14645) indicator For Complexometry Acs,Reag. Ph Eur 25 GR.