solution of potassium hexacyanoferrate(III); zinc-plated iron sheet; tin-plated iron sheet; iron paper clips; solid NaCl; urotropin. Equipment Test tubes, small beaker (50 cm3), centrifuge tube. Experiments 1. Making of a galvanic pair 1.1. Place a zinc granule on the bottom of the centrifuge tube and pour solution of hydrochloric acid on top. Write down the equation of reaction which occurs. Which compound is the oxidant, which is the reductant? Zn+2 HCl ZnCl 2 + H 2 -¿ H 2 Oxidant is H: +¿+2 e ¿ 2 H¿ 2+ ¿ ¿ Reductant is Zn: -¿ Zn Zn 2 e ¿ Next, insert the copper wire into the same solution in the centrifuge tube, ensuring that it will not touch the zinc granule
· Värv segatakse 1:2 · 2,1% , 3% H O · Mõjuaeg 1-15 min Mix toonid Mix tones /3, /4, /6, /8 /3, /4 võib otsevärvina kasutada, 6-10 pesu 60 g värvi+60 g H O +5 g mix värvi Triibuvärvid Higlight Color- S/16, S/36 segatakse 1:2 S/34, S/44, S/66, S/28, S/86 segatakse 1:1 3%, 6%, 9%, 12% H O Mõjuaeg max.50 min NB! Peanahale ei tohi kanda! 4.3 Vesinikemulsioonid SENSIDO ® OXIDANT 2,1% vol. 7 3% vol. 10 6% vol. 20 9% vol. 30 12% vol. 40 300 ja 1000 ml 5. EWALD 5.1 Püsivärvid Ewald C:ehko Color Explosion Kogus 60ml. Üle saja erineva värvitooni. Märgistus: /0 naturaalne /00 naturaalne /1 pärlmutter /2 tuhk /3 /31 /35 kuld /4 /43 /44 /45 vask /5 /56 /58 punane
9 erinevat värvitooni: Choco Brown, Dark Violet, Mahogany, Cold Red, Warm Red, Fire Orange, Gold, Sandy Blonde, Silver · Silk Contrast Triibuvärv, mis sobib eelnevalt värvitud või värvimata juustele Blondeerimisained: · Blond for Ever Lõhnavaba ja tolmuvaba Sobib kõigile juuksetüüpidele ja blondeerimistehnikatele Helendab kuni 7 astet Kerge peale kanda ja ei kuiva Õrn juustele- Valida tavaline ja ammoniaagivaba Vesinikemulsioonid: · Sensido Oxidant 2,1% vol 7 3% vol. 10 6% vol. 20 9% vol. 30 12% vol. 40 300ml ja 1000ml Sobib kasutada kõikide Sim juuksevärvide, triibuvärvide ja blondeerimispulbritega 3% SimOxyd samaks tumedusastmeks, tumedamaks värvimisel 6% SimOxyd 1 ° blondeerimiseks 9% SimOxyd 2 ° blondeerimiseks 12% SimOxyd 3-7astet helendamiseks 2,1% Light SimOxyd kergvärvide ja keemiliste lokkide järel · Sensido Pre-Pigmentation Foam eelpigmenteerimisvaht
(Cooksey 2000). ated supermarket shelves. This is the situa- Antioxidant packaging is a recent devel- tion in most developed countries, particularly opment in active packaging technologies that within the EU, where sales of fresh meat has had some success. Nerín et al. (2006) have increased in supermarkets at the expense described the promising results of a new anti- of the specialized butcher ’s store (Mannion oxidant active packaging system; a plastic 1995). However, recently, consumers have film with an embodied rosemary extract was become very much more discerning with able to inhibit both myoglobin and lipid oxi- respect to the origins of the food they Meat Packaging 257 consume. Poor labeling by the supermarkets beef that is bright red in color and pack-
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