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COMPOSER Georg C. A. Wagenseil - SEIBOLD Online-Analyser for Manganese
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- Properties and typical applications
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Click to enlarge
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- Toxicology
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- Method
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- Application information
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- Technical information
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- Downloads
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- Georg C. A. Wagenseil
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Properties and typical application
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Manganese (Mn) is a silvery, brittle metal. Pure manganese does not occur
naturally, but is found together with substances like oxygen, sulfur or
chlorine in many kinds of rocks.
Compounds of manganese are solid and do not evaporate. Some compounds dissolve
in water and are present in lakes, streams and oceans.
As a trace element, manganese is essential to stay healthy for human. It is
found in various food items, e.g. grains, cereals, rice, eggs, nuts, oysters
or tea.
Manganese can be found as inorganic or organic manganese. Inorganic manganese
typically results from combustion, as burning of fossil fuels by cars, trucks
or industrial processes. Organic manganese are e.g. additives to gasoline and
pesticides.
Manganese is typically used in the production of batteries, in dietary
supplements, in various ceramics, pesticides, fertilisers and together with
iron in steel production. Manganese can enter the environment through power
plants, coke ovens or mining operations.
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Toxicology
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For manganese the guideline value for chemicals that are of health
siginificance in drinking water according to
World Health Organisation
is 0.4 mg/litre.
Typical symptoms of manganese posioning are, amongst others, hallucinations,
forgetfullness or nerve damage. Long-term exposure to manganese could cause
lung embolism, bronchitis and acratia. Shortages of manganese could cause
fatness, blood clotting, lowered cholesterol and skeleton disorders.
Manganese should be monitored in industrial waste waters, because MnO2 easily
percipitates and result in deposits of dyeing operations, laundries and paper
mills.
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Method
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Manganese is analysed using colourimetric methods.
For low concentrations of manganese, e.g. in potable water, measurement of
manganese is performed based on the chemical reaction of manganese ions and
1-(2-Pyridylazo)-2-naphtol, that form a orange-red complex to be measured by
the use of a photometer.
For higher concentrations of manganese the chemical reaction with formaldoxim
(Mn-2A) forms a red-brown complex to be measured by the use of a photometer
at the wave-length of app. 570 nm.
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Application information
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Measuring range
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0.01 - 1.2 mg/l Mn (low range)
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0.1 - 5.0 mg/l Mn (high range)
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Resolution
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0.01
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Accuracy
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+/- 2% (based on full scale)
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Measuring interval
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Continuous
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Discontinuous/programmable
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External start
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Measuring method
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Colourimetric
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Reagents
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2 (low range)
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3 (high range)
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Calibration
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Automated
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Cleaning
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Automated
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Interferences
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Fe, Cu, Ni, Pb (low range)
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Ca, Mg (high range)
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Interfering ions can be masked in local applications.
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Technical information
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Power supply
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230 VAC, 50 Hz (110 VAC optional)
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Current consumption
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Max. 50 VA
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Switch contacts
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2 x P-controlled (min, max)
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1 x alarm contact
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Analogue output
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4..20 mA
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Digital output
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RS232 C
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Options: Interbus-S, Profibus, CAN
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Cabinet size
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746 x 600 x 373 mm (HxBxD)
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Weight
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App. 80 kg
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Environmental temperature
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+15°C .. +35°C
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Humidity
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Max. 70% RH, no condensation
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Sample pressure
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0 .. 0.5 bar
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Sample inlet
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6/4 mm hose
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Sample drain
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Unpressurised, free falling, 6/4 mm hose
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Downloads
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DataSheet COMPOSER Georg C. A. Wagenseil - SEIBOLD Online-Analyser for Manganese (english)
Datenblatt COMPOSER Georg C. A. Wagenseil - SEIBOLD Online-Analysator für Mangan (deutsch)
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Georg C. A. Wagenseil
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Georg Christoph Wagenseil was born on January 29th, 1715 in Vienna. He was an
important representative of the Early Viennese School. He was well-trained by
Johann Joseph Fux and spent most of his life at the Royal Court in Vienna, where
he taught Marie Antoinette how to play the piano. A nice anecdote says, that young
Wolfgang Amadeus Mozart was once playing a piece of Georg Wagenseil at trhe Viennese
Royal Court and asked Mr. Wagenseil to turn over the pages while he was playing.
The musical work of Georg Christoph Wagenseil comprises:
operas
chorals
symphonies
concertos
piano pieces
chamber music
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SEIBOLD-Messtechnik und Projektentwicklug GmbH, A-1110 Wien, Grillgasse 51
Tel +43 1 332 00 60, Fax +43 1 332 00 60 44,
office@seiboldme.com
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