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Eriochrome black T (C.I. 14645), 100 g

p.a.
Examples of effect: Lead to damage to heath, cause irritation to eyes, skin or respiratory organs. Are fatal in larger quantities. Safety: As previously stated, in the event of skin irritation or contact with eyes, rinse with water or a suitable medium.
Examples of effect: Are harmful to aquatic organisms, toxic or highly toxic, acute or with long-term effects. Safety: To be disposed of as hazardous waste only, do not allow into the environment under any circumstances.
Warning
H319-H411
i causes serious eye irritation, toxic to aquatic life with long lasting effects
P273 P280 P305+P351+P338
i avoid release to the environment, wear protective gloves/eye protection, IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing
Pack Qty.
Pack.
2-Hydroxy-1-(1-hydroxynaphthyl-2-azo)-6-nitronaphthalene 4-sulphonic acid monosodium salt, Mordant black 11
Empirical formula C20H12N3NaO7S
Molar mass (M) 461,38 g/mol
Melting point (mp) >300 °C
ADR 9 III
WGK 2
CAS No. [1787-61-7]
EG-Nr. 217-250-3
UN-Nr. 3077

Metal indicator
Dissolve 0.1 g in water

€57.55/Pack Qty. 

excl. VAT. | 100 g per Pack Qty.

Art. No. 0112.3

In stock
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Product details



Eriochrome black T (C.I. 14645) p.a.

Technical Information
Determination of Ba 
Cd 
In 
Mg 
Mn 
Pb 
Sc 
Sr 
Zn 
Zr 
rare earth metals 
Eriochrome black T (C.I. 14645)
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Order No. Pack Qty. Pack. Price Quantity
0112.1 25 g glass

€18.20

0112.2 50 g glass

€32.15

0112.3 100 g glass

€57.55

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Downloads / MSDS


General information

Indicators and Dyes

Carl ROTH offers many indicators and dyes of high purity, which can be used in special applications.


Determination of Water Hardness

Water contains a whole host of salts and other compounds in addition to the gases dissolved in it (oxygen, nitrogen, carbon dioxide). Its most important constituents are magnesium and calcium in the form of their chlorides, sulphates and bicarbonates. These dissolved salts are known as hardeners. The bicarbonates precipitate in the heat (during boiling) as carbonates and are known as carbonate hardness or temporary hardness. The sulphate and chloride compounds are known as permanent hardness or non-carbonate hardness. Total hardness describes the concentration of alkaline earth metal ions in water.

The unit of measurement for water hardness used to be 1 °dH (German degrees of hardness), which corresponds to 10,00 mg CaO or 7,19 mg MgO in one litre of water. Today we use millimoles per litre (mmol/l), whereby 1 °dH corresponds to 0,18 mmol/l of earth metal ions and 1 mmol/l corresponds to 5,6 °dH.


Certificates of Analysis

You can search for and download your certificate of analysis for the selected product here. Please provide your batch number.
The following analysis certificates have been found:

Type analysis

Appearanceblack powder
Loss on drying≤7 %
Suitability as indicator for complexometrycomplies

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