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Murexide (C.I. 56085), 5 g

ACS
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Ammonium purpurate
Empirical formula C8H8N6O6
Molar mass (M) 284,19 g/mol
Melting point (mp) >300 °C
WGK 1
CAS No. [3051-09-0]
EG-Nr. 221-266-6

Indicator
freshly made saturated solution in water

Guarantee analysis

€26.80/Pack Qty. 

excl. VAT. | 5 g per Pack Qty.

Art. No. T124.1

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Murexide (C.I. 56085) ACS

Technical Information
Determination of Ag 
Ca 
Co 
Cu 
Mn 
Ni 
Sc 
Th 
Zn 
Murexide (C.I. 56085)
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Order No. Pack Qty. Pack. Price Quantity
T124.1 5 g glass €26.80
T124.2 25 g glass €62.90
T124.3 50 g glass €103.10
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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

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The following analysis certificates have been found:

Guarantee analysis

Loss on drying≤2,0 %  
Suitability as indicator for complexometrycomplies  

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