Merck 103170 Eriochrome black T (C.I. 14645) indicator for complexometry ACS, Reag. Ph Eur CA No.: 1787-61-7 25 gr

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Kompleks veya Metal İndikatörleri

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Merck

Stok Kodu

LB.M.103170.0025

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Synonyms: Chrome black T, 2-Hydroxy-1-(1-hydroxy-2-naphthylazo)-6-nitronaphthalene-4-sulfonic acid sodium salt CAS Number: 1787-61-7 EC Number: 217-250-3 Molar Mass: 461.38 g/mol Hill Formula: C₂₀H₁₂N₃NaO₇S Grade: ACS,Reag. Ph Eur

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MERCK 103170

Eriochrome black T indicator for complexometry

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, EX0100-5, EX0100

Product Information
CAS number	1787-61-7
EC number	217-250-3
Grade	ACS,Reag. Ph Eur
Hill Formula	C₂₀H₁₂N₃NaO₇S
Molar Mass	461.38 g/mol
HS Code	3204 19 00
Structure formula Image

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

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)	P273: Avoid release to the environment. 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
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.

Safety Information
Hazard Symbols	Irritant Dangerous for the environment
Categories of danger	irritant, dangerous for the environment
R Phrase	R 36-51/53 Irritating to eyes.Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
S Phrase	S 26-61 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Avoid release to the environment. Refer to special instructions/ Safety data sheets.

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
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 λmax. (buffer pH 10.0)	612 - 616 nm
Spec. Absorptivity A 1%/1cm (λmax; 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

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