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Rohchemikalien

The Sodium Acetate is the anhydrous form of acetic acid, which is used as a buffer for acetic baths. The Sodium Acetate is commonly used together in toning baths and as a retarder in hydroquinone developers.
The Sodium Acetate is the anhydrous form of acetic acid, which is used as a buffer for acetic baths. The Sodium Acetate is commonly used together in toning baths and as a retarder in hydroquinone developers.
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Natriumacetat
£1000 £1218
The historical photography process of gum bichromate photography uses gum arabic mixed with ammonium or potassium dichromate and pigment to create a coloured photographic emulsion that becomes relatively insoluble in water upon exposure to ultraviolet light. In the final print, the acacia gum permanently binds the pigments onto the paper.
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Akaziengummi/Gummi Arabicum 100g
£1600 £1800
Other Names: Concentrated alum, Paper-maker's alum, Sulfate of alumina Appearance Pale green to white in color and is available in powdered and granular forms Uses Can be used as a substitute for alum as a hardener (ratio = 2 parts aluminium sulphate as a substitute for 3 parts alum). Chemical Formula Al2(SO4)3 . 14H2O
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Ammoniumalaun
Von £700 £880
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Bellini Antifog Paper 1-Fenil-5-Mercapto-Tetrazole 5gg
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Bellini Antifog-Papier 1-Fenil-5-Mercapto-Tetrazol 5g.
£1675 £2000
Used in both film and paper developing to prevent ‘fogging’ or blurring of the image by enhancing the image contrast boundaries, preventing bleed of silver halide crystals during exposure and development. The main usage area is medical and industrial X-ray imaging
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Bellini Dimezone S 10g
£1300 £1410
Bellini Pyrocarechin/Catechol 100g Catechol Pyrocatechin, also known as Pyrocatechin and Pyrocatechol, is used as a developing agent for film or paper. It gives warm black images, with rapid development and high contrast. Pyrocatechin also acts as a tanning developer, which stains (actually fogs) the negative and also hardens the emulsion protecting it from reticulation.
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Bellini PyroCatechol 50g.
£3000 £3600
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Calgon 500g
£650 £876
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Eisen(III)-Ammoniumsulfat 100 g
£950 £1164
Ferrous sulfate is mainly used as a precursor to other iron compounds. It is a reducing agent, and as such is useful for the reduction of chromate in cement to less toxic Cr(III) compounds. Historically ferrous sulfate was used in the textile industry for centuries as a dye fixative. It is used historically to blacken leather and as a constituent of ink. The preparation of sulfuric acid ('oil of vitriol') by the distillation of green vitriol (Iron(II) sulfate) has been known for at least 700 years.
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Wasserfreies Eisensulfat
Von £975 £1387
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The Photographers Ascorbic Acid is used as a photographic developing agent and as a preservative.
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L Ascorbinsäure 25g
£375 £420
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Kaliumaluminiumsulfat
£2500 £2640
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Kaliumjodid 100g
£1200 £2520
Synonyms: Citrosodine Trisodium Citrate 2-hydroxy-123-propanetricarboxylic acid, trisodium salt, dihydrate Sodium Citrate Dihydrate
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Natriumcitrat 100g
£1000 £1457
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Natriumhydrogenphosphat 100 g
£900 £1178
It is commonly used as an accelerator or alkali to activate low-energy developing agents, such as hydroquinone. It also is added to increase overall contrast with developers.
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Natriumhydroxid (Natronlauge)
Von £600 £1080
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Natrium-ISOAscorbat 25 g
£650 £1018
Sodium Thiosulphate can be used to remove chlorine from water and is quite often used in Photographic processing. It has also been used in the medical industry as a treatment for Cyanide poisoning. Sodium Thiosulphate is used by photographers as a photographic fixer. It has a high affinity to soft metals and a solution can be used to dissolve photographic emulsions. Packing: Pouches Picture is illustration only Safety Data Sheet
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Natriumthiosulfat
Von £650 £1384
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CraftyDetail-Spritze
Von £275 £300
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Protect your clothing from darkroom chemicals with our darkroom apron. Made from water repellent rubber coated material, which is easy to wipe clean. Universal fit.
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CraftyDetail Schürze mit Gummibeschichtung
£650 £1890
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OnBalance Truweigh Miniwaage 600 g x 0,1 g (TW-600-SL)
£800 £1100