File:Flammenfärbung Kalium (K).jpg
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editDescriptionFlammenfärbung Kalium (K).jpg |
Deutsch: Demonstration der Flammenfärbungen durch Erhitzen von Kaliumchlorid in der Flamme eines Bunsenbrenners. Durch Anregung wird sichtbares Licht Element-spezifischer Wellenlängen freigesetzt, was als Nachweis für Kalium dienen kann. Die violette Flammenfarbe des Kaliums wird oft durch geringste Verunreinigungen von Natrium mit seiner kräftig gelben Flammenfarbe überdeckt, ist aber durch ein Stück blaues Kobaltglas sichtbar, welches gelbes Licht herausfiltert.
English: Demonstration of flame colors used in the flame test by heating potassium chloride in a Bunsen burner flame. Excitation of electrons causes release of electromagnetic radiation whose wavelengths are element-specific. In some cases, these wavelengths fall into the visible spectrum, making them useful as a test for certain elements, in this case potassium. The lilac flame color of potassium is often obscured by tiny amounts of sodium impurities which color the flame a bright yellow. The potassium flame is visible through a piece of blue cobalt glass which filters out the yellow light. |
Date | |
Source | Own work |
Author | S k y r |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 15:53, 22 February 2024 | 1,076 × 1,721 (423 KB) | S k y r (talk | contribs) | neue Aufnahme mit besserer Farbwiedergabe | |
11:33, 21 January 2024 | 1,097 × 1,755 (304 KB) | S k y r (talk | contribs) | Uploaded own work with UploadWizard |
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Camera manufacturer | Canon |
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Camera model | Canon EOS 6D |
Author | v:siebert |
Exposure time | 1/25 sec (0.04) |
F-number | f/3.2 |
ISO speed rating | 200 |
Date and time of data generation | 17:40, 21 January 2024 |
Lens focal length | 50 mm |
Width | 1,279 px |
Height | 2,046 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop 22.5 (Macintosh) |
File change date and time | 11:35, 24 January 2024 |
Exposure Program | Manual |
Exif version | 2.31 |
Date and time of digitizing | 17:40, 21 January 2024 |
APEX shutter speed | 4.643856 |
APEX aperture | 3.356144 |
APEX exposure bias | 0 |
Maximum land aperture | 1.75 APEX (f/1.83) |
Metering mode | Partial |
Flash | Flash did not fire, compulsory flash suppression |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |
Color space | Uncalibrated |
Focal plane X resolution | 1,520 |
Focal plane Y resolution | 1,520 |
Focal plane resolution unit | 3 |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Scene capture type | Standard |
Serial number of camera | 063025000613 |
Lens used | EF50mm f/1.8 STM |
Date metadata was last modified | 12:35, 24 January 2024 |
Unique ID of original document | 11345B70046A8B0253172CDB8A187DC7 |
IIM version | 4 |