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<channel>
	<title>Nitro &#187; Colorants</title>
	<atom:link href="http://nitro.t2i.info/category/colorants/feed/" rel="self" type="application/rss+xml" />
	<link>http://nitro.t2i.info</link>
	<description>Explozivi, Alcaloizi, Toxine, Plante Otravitoare -  pentru Referate Chimie, Bilogie si Fizica</description>
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			<item>
		<title>Aurina</title>
		<link>http://nitro.t2i.info/aurina/</link>
		<comments>http://nitro.t2i.info/aurina/#comments</comments>
		<pubDate>Fri, 09 Nov 2007 15:00:29 +0000</pubDate>
		<dc:creator>byrev</dc:creator>
				<category><![CDATA[Colorants]]></category>
<category>colorant</category><category>colorant pentru hirtie</category><category>Culoare galbena</category><category>derivat fucsona</category>
		<guid isPermaLink="false">http://nitro.t2i.info/aurina/</guid>
		<description><![CDATA[Aurina
~~~~~~
        Colorant "trifenil-metanic acid", derivat al fucsonei.
                                 ____
         [...]]]></description>
			<content:encoded><![CDATA[<pre><strong>Aurina</strong>
~~~~~~
        Colorant "<strong>trifenil-metanic acid</strong>", derivat al fucsonei.</pre>
<pre>                                 ____
                               //    \\\\
                              &lt;        &gt;-OH
               ____         /  \\ ____ /
             / ---- \\     /      ----
        O = &lt;        &gt; = C                       aurina
             \\ ____ /     \\      ____
               ----         \\  //    \\\\
                              &lt;        &gt;-OH
                               \\ ____ /
                                 ----
<strong>Culoare galbena</strong>, insolubila in apa, solubile in alcool si acid acetic. Se
foloseste drept <strong>colorant pentru hirtie</strong>.</pre>
<a href="http://nitro.t2i.info/index.php?tag=colorant" rel="tag">colorant</a>, <a href="http://nitro.t2i.info/index.php?tag=colorant-pentru-hirtie" rel="tag">colorant pentru hirtie</a>, <a href="http://nitro.t2i.info/index.php?tag=culoare-galbena" rel="tag">Culoare galbena</a>, <a href="http://nitro.t2i.info/index.php?tag=derivat-fucsona" rel="tag">derivat fucsona</a>]]></content:encoded>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Cristal-violet</title>
		<link>http://nitro.t2i.info/cristal-violet/</link>
		<comments>http://nitro.t2i.info/cristal-violet/#comments</comments>
		<pubDate>Fri, 09 Nov 2007 14:53:28 +0000</pubDate>
		<dc:creator>byrev</dc:creator>
				<category><![CDATA[Colorants]]></category>
<category>colorant trifenil metanic</category><category>Cristal</category><category>culoare violet albastruie</category><category>violet</category>
		<guid isPermaLink="false">http://nitro.t2i.info/cristal-violet/</guid>
		<description><![CDATA[Cristal-violet
~~~~~~~~~~~~~~
        Formeaza cristale frumoase de culoare violet-albastruie. Se
intrebuinteaza pentru colorarea lanii, a bumbacului mordansat si in cantitati
mari la fabricarea cernelurilor violete. Este un colorant
"trifenil-metanic bazic".


colorant trifenil metanic, Cristal, culoare violet albastruie, violet]]></description>
			<content:encoded><![CDATA[<pre><strong>Cristal-violet</strong>
~~~~~~~~~~~~~~
        Formeaza cristale frumoase de <strong>culoare violet-albastruie</strong>. Se
intrebuinteaza pentru colorarea lanii, a <strong>bumbacului mordansat</strong> si in cantitati
mari la <strong>fabricarea cernelurilor violete</strong>. Este un colorant
"trifenil-metanic bazic".</pre>
<p align="center">
<pre><a href="http://nitro.t2i.info/cristal-violet/cristal-violet/" rel="attachment wp-att-241" title="Cristal Violet"><img src="http://nitro.t2i.info/wp-content/uploads/2007/11/cristal-violet.png" alt="Cristal Violet" /></a></pre>
<a href="http://nitro.t2i.info/index.php?tag=colorant-trifenil-metanic" rel="tag">colorant trifenil metanic</a>, <a href="http://nitro.t2i.info/index.php?tag=cristal" rel="tag">Cristal</a>, <a href="http://nitro.t2i.info/index.php?tag=culoare-violet-albastruie" rel="tag">culoare violet albastruie</a>, <a href="http://nitro.t2i.info/index.php?tag=violet" rel="tag">violet</a>]]></content:encoded>
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		</item>
		<item>
		<title>Indantren</title>
		<link>http://nitro.t2i.info/indantren/</link>
		<comments>http://nitro.t2i.info/indantren/#comments</comments>
		<pubDate>Fri, 09 Nov 2007 14:47:04 +0000</pubDate>
		<dc:creator>byrev</dc:creator>
				<category><![CDATA[Colorants]]></category>
<category>Albastru indantren</category><category>antrachinona</category><category>vopsirea bumbacului</category>
		<guid isPermaLink="false">http://nitro.t2i.info/indantren/</guid>
		<description><![CDATA[Indantren (Albastru indantren)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        Se obtine prin topirea 2-amino-antrachinonei cu KOH la 250øC
                 O
                &#124;&#124;    [...]]]></description>
			<content:encoded><![CDATA[<pre><strong>Indantren</strong> (Albastru indantren)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        Se obtine prin topirea 2-amino-antrachinonei cu KOH la 250øC</pre>
<pre>                 O
                ||                                   O
         // \\  /  \\  / \\\\                           ||
        |    ||    ||    |                   // \\  /  \\  / \\\\
        |    ||    ||    |                  |    ||    ||    |
         \\\ /  \\  /  \\ // \\                 |    ||    ||    |
                ||         NH2               \\\\ /  \\  /  \\ // \\
                O                  KOH              ||    |    NH   O
                                  ------&gt;            O   HN    |    ||
                 O                 250øC                   \\ // \\  /  \\  / \\\\
     H2N         ||                                         |    ||    ||    |
        \\ // \\  /  \\  / \\\\                                  |    ||    ||    |
         |    ||    ||    |                                  \\\\ /  \\  /  \\ //
         |    ||    ||    |                                         ||
          \\\\ /  \\  /  \\ //                                           O
                 ||
                  O</pre>
<pre>        Este o <strong>pulbere neagra</strong>, insolubila in apa, a carei cada este de <strong>culoare
albastru-inchis</strong>.
        Culoarea rezista la lumina si spalare. Este utilizata pentru <strong>vopsirea
bumbacului</strong>.</pre>
<a href="http://nitro.t2i.info/index.php?tag=albastru-indantren" rel="tag">Albastru indantren</a>, <a href="http://nitro.t2i.info/index.php?tag=antrachinona" rel="tag">antrachinona</a>, <a href="http://nitro.t2i.info/index.php?tag=vopsirea-bumbacului" rel="tag">vopsirea bumbacului</a>]]></content:encoded>
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		</item>
		<item>
		<title>Alizarina</title>
		<link>http://nitro.t2i.info/alizarina/</link>
		<comments>http://nitro.t2i.info/alizarina/#comments</comments>
		<pubDate>Fri, 09 Nov 2007 12:52:52 +0000</pubDate>
		<dc:creator>byrev</dc:creator>
				<category><![CDATA[Colorants]]></category>
<category>coloranti sintetici</category><category>culoare rosie portocalie</category><category>culoarea rosie</category><category>mordantii</category><category>substanta cristalina</category>
		<guid isPermaLink="false">http://nitro.t2i.info/alizarina/</guid>
		<description><![CDATA[Alizarina
~~~~~~~~~
1,2 -dihidroxi-antrachinona.
        Se gaseste in radacinile de roiba(garanta) sub forma unei glicozide
Se obtine prin topirea alcalina a sarii de sodiu a acidului
2-antrachinon-sulfonic in prezenta unui oxidant (clorat, azotat de potasiu):
                O   [...]]]></description>
			<content:encoded><![CDATA[<pre><strong>Alizarina</strong>
~~~~~~~~~
1,2 -dihidroxi-antrachinona.
        Se gaseste in <strong>radacinile de roiba</strong>(garanta) sub forma unei glicozide
Se obtine prin topirea alcalina a sarii de sodiu a acidului
2-antrachinon-sulfonic in prezenta unui oxidant (clorat, azotat de potasiu):</pre>
<pre>                O                                    O    OH
                ||                                  ||    |
         // \\  /  \\  / \\\\ -SO3Na     NaOH    // \\  /  \\  / \\\\ -SO3Na  NaOH
        |    ||    ||    |        +  ------&gt;|    ||    ||    |       -------&gt;
        |    ||    ||    |             O2   |    ||    ||    |       -Na2SO3
         \\\\ /  \\  /  \\ //                    \\\\ /  \\  /  \\\ //
                ||                                  ||
                 O                                   O</pre>
<pre>                O     OH
                ||    |
         // \\  /  \\  / \\\\ -OH
        |    ||    ||    |
        |    ||    ||    |
         \\\\ /  \\  /  \\ //
                ||
                 O</pre>
<pre>        este o <strong>substanta cristalina</strong>, de <strong>culoare rosie-portocalie</strong>, putin
solubila in apa. Se topeste la 290øC. Cu mordantii de Al da <strong>culoarea rosie</strong>;
cu cei de fier, da <strong>negru-violet</strong>; cu cei de crom, da <strong>violet-bruna</strong>. Se vopseste
<em>bumbacul, lina si matasea</em>. Culorile sunt rezistente.</pre>
<a href="http://nitro.t2i.info/index.php?tag=coloranti-sintetici" rel="tag">coloranti sintetici</a>, <a href="http://nitro.t2i.info/index.php?tag=culoare-rosie-portocalie" rel="tag">culoare rosie portocalie</a>, <a href="http://nitro.t2i.info/index.php?tag=culoarea-rosie" rel="tag">culoarea rosie</a>, <a href="http://nitro.t2i.info/index.php?tag=mordantii" rel="tag">mordantii</a>, <a href="http://nitro.t2i.info/index.php?tag=substanta-cristalina" rel="tag">substanta cristalina</a>]]></content:encoded>
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		</item>
		<item>
		<title>Rosu-para</title>
		<link>http://nitro.t2i.info/rosu-para/</link>
		<comments>http://nitro.t2i.info/rosu-para/#comments</comments>
		<pubDate>Sat, 01 Sep 2007 21:25:48 +0000</pubDate>
		<dc:creator>byrev</dc:creator>
				<category><![CDATA[Colorants]]></category>
<category>azoic</category><category>b naftol</category><category>colorant rosu</category><category>developare</category><category>sintetizare</category><category>vopsele</category><category>vopsire</category>
		<guid isPermaLink="false">http://nitro.t2i.info/rosu-para/</guid>
		<description><![CDATA[Rosu-para
~~~~~~~~~
        Se obtine prin cuplarea p-nitro-anilinei diazotate cu b-naftol:
                                        [...]]]></description>
			<content:encoded><![CDATA[<pre><strong>Rosu-para</strong>
~~~~~~~~~
        Se obtine prin cuplarea p-nitro-anilinei diazotate cu <strong>b-naftol</strong>:</pre>
<pre>                                        OH
                       ____             |____
                     /      \\          //    \\\\
                O2N-&lt;        &gt;-N = N -&lt;        &gt;
                     \\ ____ /          \\ ____ /
                                         ----
                                       /      \\
                                      &lt;        &gt;
                                       \\\\____//</pre>
<pre>Este un <strong>colorant azoic</strong> de <strong>developare</strong>, coloranti ce sunt sintetizati <em>direct pe
fibra</em> in timpul <em>vopsirii</em>. Pentru vopsire, firele de bumbac se imbiba intr-o
solutie de <em>b-naftol</em> si dupa uscare se introduc intr-o solutie <em>racita cu gheata</em>
de p-nitro-anilina diazotata.
        Este un <strong>colorant rosu</strong>.</pre>
<a href="http://nitro.t2i.info/index.php?tag=azoic" rel="tag">azoic</a>, <a href="http://nitro.t2i.info/index.php?tag=b-naftol" rel="tag">b naftol</a>, <a href="http://nitro.t2i.info/index.php?tag=colorant-rosu" rel="tag">colorant rosu</a>, <a href="http://nitro.t2i.info/index.php?tag=developare" rel="tag">developare</a>, <a href="http://nitro.t2i.info/index.php?tag=sintetizare" rel="tag">sintetizare</a>, <a href="http://nitro.t2i.info/index.php?tag=vopsele" rel="tag">vopsele</a>, <a href="http://nitro.t2i.info/index.php?tag=vopsire" rel="tag">vopsire</a>]]></content:encoded>
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		</item>
		<item>
		<title>Albastru acid de crom 2K</title>
		<link>http://nitro.t2i.info/albastru-acid-de-crom-2k/</link>
		<comments>http://nitro.t2i.info/albastru-acid-de-crom-2k/#comments</comments>
		<pubDate>Sat, 01 Sep 2007 21:08:34 +0000</pubDate>
		<dc:creator>byrev</dc:creator>
				<category><![CDATA[Colorants]]></category>
<category>Albastru</category><category>cromare</category><category>portocaliu</category><category>vopsirea lanei</category>
		<guid isPermaLink="false">http://nitro.t2i.info/albastru-acid-de-crom-2k/</guid>
		<description><![CDATA[Albastru acid de crom 2K
~~~~~~~~~~~~~~~~~~~~~~~~
Vopseste lina in portocaliu, iar dupa cromare in albastru:
                OH            OH    NHCOCH3
           [...]]]></description>
			<content:encoded><![CDATA[<pre><strong>Albastru acid de crom 2K</strong>
~~~~~~~~~~~~~~~~~~~~~~~~
<strong>Vopseste lina</strong> in <em>portocaliu</em>, iar dupa <strong>cromare</strong> in <em>albastru</em>:</pre>
<pre>                OH            OH    NHCOCH3
                |             |     |
              /   \\ -N = N- // \\  /   \\
             |     |       |    ||     |
             |     |       |    ||     |
              \\   /       / \\\\ /  \\  // \\
                |     HO3S               SO3H
                Cl</pre>
<a href="http://nitro.t2i.info/index.php?tag=albastru" rel="tag">Albastru</a>, <a href="http://nitro.t2i.info/index.php?tag=cromare" rel="tag">cromare</a>, <a href="http://nitro.t2i.info/index.php?tag=portocaliu" rel="tag">portocaliu</a>, <a href="http://nitro.t2i.info/index.php?tag=vopsirea-lanei" rel="tag">vopsirea lanei</a>]]></content:encoded>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Galben direct-G</title>
		<link>http://nitro.t2i.info/galben-direct-g/</link>
		<comments>http://nitro.t2i.info/galben-direct-g/#comments</comments>
		<pubDate>Sun, 12 Aug 2007 19:36:10 +0000</pubDate>
		<dc:creator>byrev</dc:creator>
				<category><![CDATA[Colorants]]></category>
<category>acid salicilic</category><category>benzidina</category><category>galben</category><category>vopsirea lanii</category>
		<guid isPermaLink="false">http://nitro.t2i.info/galben-direct-g/</guid>
		<description><![CDATA[Galben direct-G (crisamina-G)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        Se prepara prin cuplarea benzidinei diazotate cu acid salicilic:
              ____             ____       ____   [...]]]></description>
			<content:encoded><![CDATA[<pre><strong>Galben direct-G</strong> (crisamina-G)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        Se prepara prin cuplarea <em>benzidinei diazotate</em> cu <em>acid salicilic</em>:
              ____             ____       ____             ____
            /      \\         /      \\   /      \\         /      \\
        HO-&lt;        &gt;-N = N-&lt;        &gt;-&lt;        &gt;-N = N-&lt;        &gt;-OH
            \\ ____ /         \\ ____ /   \\ ____ /         \\ ____ /
             |                                                 |
             COOH               benzidina                      COOH
            acid                diazotata                  acid
           salicilic                                     salicilic</pre>
<pre>Are culoare <strong>bruna-galbuie</strong>, si este folosit pentru <strong>vopsirea lanii</strong> si
<strong>Bumbacului</strong>.</pre>
<a href="http://nitro.t2i.info/index.php?tag=acid-salicilic" rel="tag">acid salicilic</a>, <a href="http://nitro.t2i.info/index.php?tag=benzidina" rel="tag">benzidina</a>, <a href="http://nitro.t2i.info/index.php?tag=galben" rel="tag">galben</a>, <a href="http://nitro.t2i.info/index.php?tag=vopsirea-lanii" rel="tag">vopsirea lanii</a>]]></content:encoded>
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		</item>
		<item>
		<title>Rosu de congo</title>
		<link>http://nitro.t2i.info/rosu-de-congo/</link>
		<comments>http://nitro.t2i.info/rosu-de-congo/#comments</comments>
		<pubDate>Sun, 12 Aug 2007 19:17:12 +0000</pubDate>
		<dc:creator>byrev</dc:creator>
				<category><![CDATA[Colorants]]></category>
<category>acid naftionic</category><category>bumbac</category><category>colorare</category>
		<guid isPermaLink="false">http://nitro.t2i.info/rosu-de-congo/</guid>
		<description><![CDATA[Rosu de congo
~~~~~~~~~~~~~
        Se obtine prin cuplarea benzidinei diazotate cu acid naftionic:
               NH2          ____       ____     [...]]]></description>
			<content:encoded><![CDATA[<pre><strong>Rosu de congo</strong>
~~~~~~~~~~~~~
        Se obtine prin cuplarea benzidinei diazotate cu <em>acid naftionic</em>:</pre>
<pre>               NH2          ____       ____             NH2
               |          /      \\   /      \\           |
         / \\  / \\ -N = N-&lt;        &gt;-&lt;        &gt;-N = N-  / \\  / \\
        |   ||   |        \\ ____ /   \\ ____ /         |   ||   |
        |   ||   |                                    |   ||   |
         \\ /  \\ /                                      \\ /  \\ /
          |                                              |
          SO3H                                           SO3H</pre>
<pre>        Se intrebuinteaza la <strong>colorarea bumbacului</strong>.</pre>
<a href="http://nitro.t2i.info/index.php?tag=acid-naftionic" rel="tag">acid naftionic</a>, <a href="http://nitro.t2i.info/index.php?tag=bumbac" rel="tag">bumbac</a>, <a href="http://nitro.t2i.info/index.php?tag=colorare" rel="tag">colorare</a>]]></content:encoded>
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		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Vesuvina</title>
		<link>http://nitro.t2i.info/vesuvina/</link>
		<comments>http://nitro.t2i.info/vesuvina/#comments</comments>
		<pubDate>Sun, 12 Aug 2007 19:01:43 +0000</pubDate>
		<dc:creator>byrev</dc:creator>
				<category><![CDATA[Colorants]]></category>
<category>brunul lui Bismark</category><category>diamina</category><category>fenil</category>
		<guid isPermaLink="false">http://nitro.t2i.info/vesuvina/</guid>
		<description><![CDATA[Vesuvina (brunul lui Bismark)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        Este amestecul clorhidratilor urmatoarele doua substante:
                       ____
                [...]]]></description>
			<content:encoded><![CDATA[<pre><strong>Vesuvina</strong> (brunul lui Bismark)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        Este amestecul clorhidratilor urmatoarele doua substante:
                       ____
                     /      \\           / \\\\
                H2N-&lt;        &gt;-N = N- /     \\\\ -NH2
                     \\\\____//        ||       |
                       —-            ||       |
                                      \\     //
                                        \\ //</pre>
<pre>               ____             / \\             ____
             //    \\\\         /     \\\\         //    \\\\
        H2N-&lt;        &gt;-N = N-||       |-N = N-&lt;        &gt;-NH2
             \\ ____ /        ||       |        \\ ____ /
               ---- |         \\     //          |----
                    NH2         \\ //            NH2</pre>
<pre>Se obtine din m-fenil-diamina prin <em>diazotare</em> si cuplare cu ea insasi.
Are culoare <strong>bruna-neagra</strong> si se utilizeaza pentru <strong>colorarea pielii</strong>. Este
<em>solubila in apa</em>.</pre>
<a href="http://nitro.t2i.info/index.php?tag=brunul-lui-bismark" rel="tag">brunul lui Bismark</a>, <a href="http://nitro.t2i.info/index.php?tag=diamina" rel="tag">diamina</a>, <a href="http://nitro.t2i.info/index.php?tag=fenil" rel="tag">fenil</a>]]></content:encoded>
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		</item>
		<item>
		<title>Galben de anilina</title>
		<link>http://nitro.t2i.info/galben-de-anilina/</link>
		<comments>http://nitro.t2i.info/galben-de-anilina/#comments</comments>
		<pubDate>Mon, 18 Jun 2007 21:28:13 +0000</pubDate>
		<dc:creator>byrev</dc:creator>
				<category><![CDATA[Colorants]]></category>
<category>acid</category><category>acid azotos</category><category>anilina</category><category>azotit</category><category>galben</category>
		<guid isPermaLink="false">http://nitro.t2i.info/galben-de-anilina/</guid>
		<description><![CDATA[Galben de anilina
~~~~~~~~~~~~~~~~~
          _____                 _____
        /       \\           [...]]]></description>
			<content:encoded><![CDATA[<pre><strong>Galben de anilina</strong>
~~~~~~~~~~~~~~~~~
          _____                 _____
        /       \\             /       \\
       &lt;    ()   &gt; - N = N - &lt;    ()   &gt; - NH2  p-amino-azo-benzen
        \\ _____ /             \\ _____ /</pre>
<pre>        Se prepara prin <strong>diazotarea anilinei</strong> cu <strong>acid azotos</strong>, care se obtine din
<strong>azotit de sodiu</strong> si un <strong>acid mineral</strong>:</pre>
<pre>                                           + -      -
   C6H5-NH2  +  NaNO2  +  2HCl ---&gt; [C6H5-N  - N]Cl   +  NaCl  +  2H2O
                                             -
sarea de diazoniu rezultata reactioneaza cu un exces de <strong>anilina</strong> si rezulta
diazo-amino-benzen:</pre>
<pre>               + -     -             -HCl
        [C6H5-N  - N]Cl  + H2N-C6H6  ----&gt; C6H5-N = N-NH-C6H5
                 -</pre>
<pre>Diazo-amino-benzenul izomerizeaza usor prin transpozitie moleculara dind
p-amino-azo-benzenul:</pre>
<pre>                C6H5-N = N-NH-C6H5 ---&gt; C6H5-N = N-C6H4-NH2</pre>
<pre>        Se prezinta sub forme de <strong>cristale</strong> <strong>galbene</strong>, care se topesc la 127øC
Se intrebuinteaza la <strong>colorarea grasimilor</strong>.</pre>
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