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

1 % in NaCl, trituration
VE
Verp.
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) 800 °C
WGK 1
CAS No. 1787-61-7
EG-Nr. 217-250-3

Metal indicator
Trituration with NaCl (1:99), ready-to-use

73,65 €/VE 

Excl. btw | 100 g Per VE

Bestelnr. K860.3

Op voorraad
Vrij van verzendingskosten vanaf 250 €
Snelle en betrouwbare levering!
Vanaf 6 VE 69,97 €/VE
Vanaf 24 VE 66,28 €/VE

Productdetails



Eriochrome black T (C.I. 14645) 1 % in NaCl, trituration

Technische informatie
Bepaling van Ba 
Cd 
In 
Mg 
Mn 
Pb 
Sc 
Sr 
Zn 
Zr 
rare earth metals 
Eriochrome black T (C.I. 14645)
Geselecteerde hoeveelheid:   0
  1. Tussentotaal:  0.00
Bestelnr. VE Verp. Prijs Hoeveelheid
K860.1 50 g plastic

42,50 €

K860.2 25 g plastic

27,85 €

K860.3 100 g plastic

73,65 €

Op voorraad
Beschikbaar
In bestelling
Niet meer verkrijgbaar
Leveringsdatum onbekend
Geselecteerde hoeveelheid:   0
  1. Tussentotaal:  0.00

Downloads / MSDS


Algemene informatie

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.


Analysecertificaten

Hier kunt u uw analysecertificaat voor het geselecteerde product zoeken en downloaden. Geef een chargenummer op.
De volgende analysecertificaten werden gevonden:

Type analysis

Suitability as indicatorcomplies
Trituration of Eriochrome black T with NaCI p.a., 1:100 simply add to the solution that has to be titrated; 1-4 mg dye in 100 ml.