{"id":26,"date":"2026-03-16T18:52:50","date_gmt":"2026-03-16T17:52:50","guid":{"rendered":"http:\/\/www.7virides.com\/cs\/uvod\/bezpecnost-luh\/"},"modified":"2026-03-25T11:19:30","modified_gmt":"2026-03-25T10:19:30","slug":"bezpecnost-luh","status":"publish","type":"page","link":"https:\/\/www.7virides.com\/cs\/mydlo\/bezpecnost-luh\/","title":{"rendered":"Bezpe\u010dnost p\u0159i pr\u00e1ci s louhem NaOH: kompletn\u00ed pr\u016fvodce"},"content":{"rendered":"<blockquote>\n<p><strong>TL;DR:<\/strong> Hydroxid sodn\u00fd je jedinou nebezpe\u010dnou ingredienc\u00ed v v\u00fdrob\u011b m\u00fddla. P\u0159i spr\u00e1vn\u00e9m pou\u017eit\u00ed ochrann\u00fdch br\u00fdl\u00ed a rukavic je pr\u00e1ce s n\u00edm bezpe\u010dn\u00e1. Hlavn\u00ed pravidlo: v\u017edy louh do vody, nikdy naopak.<\/p>\n<\/blockquote>\n<p>Hydroxid sodn\u00fd (NaOH, louh sodn\u00fd) je l\u00e1tka, bez kter\u00e9 nelze vyrobit tuh\u00e9 m\u00fddlo metodou cold nebo hot process. Je to z\u00e1rove\u0148 jedin\u00e1 skute\u010dn\u011b nebezpe\u010dn\u00e1 ingredience v cel\u00e9m procesu. Spr\u00e1vn\u00e9 zach\u00e1zen\u00ed s n\u00ed je jednoduch\u00e9 a zvl\u00e1dne ji ka\u017ed\u00fd. Nespr\u00e1vn\u00e9 zach\u00e1zen\u00ed zp\u016fsob\u00ed chemick\u00e9 pop\u00e1leniny.<\/p>\n<p>Tento pr\u016fvodce v\u00e1s nenau\u010d\u00ed m\u00edt strach z louhu \u2014 nau\u010d\u00ed v\u00e1s ho respektovat. Tis\u00edce mydl\u00e1\u0159\u016f pracuj\u00ed s NaOH ka\u017ed\u00fd t\u00fdden bez nehod, proto\u017ee dodr\u017euj\u00ed z\u00e1kladn\u00ed pravidla. Tato str\u00e1nka tato pravidla vysv\u011btluje.<\/p>\n<h2 id=\"co-je-hydroxid-sodny-a-proc-je-nebezpecny\">Co je hydroxid sodn\u00fd a pro\u010d je nebezpe\u010dn\u00fd?<\/h2>\n<p>Hydroxid sodn\u00fd (NaOH) je siln\u00e1 z\u00e1sada s pH ~14 v roztoku. Reaguje s b\u00edlkovinami \u2014 to je d\u016fvod, pro\u010d saponifikuje tuky, a z\u00e1rove\u0148 d\u016fvod, pro\u010d zp\u016fsobuje chemick\u00e9 pop\u00e1leniny na k\u016f\u017ei a zejm\u00e9na na oku. Existuj\u00ed t\u0159i kl\u00ed\u010dov\u00e9 vlastnosti, kter\u00e9 je t\u0159eba zn\u00e1t.<\/p>\n<p><strong>Prvn\u00ed nebezpe\u010d\u00ed: exotermick\u00e1 reakce s vodou.<\/strong> P\u0159i rozpou\u0161t\u011bn\u00ed NaOH ve vod\u011b se uvol\u0148uje teplo \u2014 louhov\u00fd roztok se oh\u0159eje na 70\u201390 \u00b0C. Proto louh nikdy nep\u0159ipravujeme v plastov\u00fdch n\u00e1dob\u00e1ch s n\u00edzkou teplotn\u00ed odolnost\u00ed a proto je t\u0159eba pou\u017e\u00edt teplom\u011br. Toto zah\u0159\u00e1t\u00ed je p\u0159edv\u00eddateln\u00e9 \u2014 ale pouze pokud p\u0159ipravujete louh spr\u00e1vn\u011b (louh do vody, nikoli naopak).<\/p>\n<p><strong>Druh\u00e9 nebezpe\u010d\u00ed: v\u00fdpary p\u0159i p\u0159\u00edprav\u011b roztoku.<\/strong> P\u0159i sm\u00edch\u00e1n\u00ed NaOH s vodou se uvoln\u00ed kr\u00e1tce dr\u00e1\u017ediv\u00e9 v\u00fdpary (hydroxidu a vodn\u00ed p\u00e1ry). Nejsou extr\u00e9mn\u011b nebezpe\u010dn\u00e9, ale dr\u00e1\u017ed\u00ed sliznici. Pracujte u otev\u0159en\u00e9ho okna nebo pod digesto\u0159\u00ed \u2014 jednoduchou opatrnost\u00ed se jim vyhnete.<\/p>\n<p><strong>T\u0159et\u00ed nebezpe\u010d\u00ed: reaktivita s hlin\u00edkem, c\u00ednem a zinkem.<\/strong> NaOH reaguje s t\u011bmito kovy a uvol\u0148uje ho\u0159lav\u00fd vod\u00edkov\u00fd plyn. Proto nikdy nepou\u017e\u00edvejte hlin\u00edkov\u00e9 n\u00e1doby nebo l\u017e\u00edce \u2014 pouze nerezovou ocel a plasty odoln\u00e9 v\u016f\u010di alk\u00e1li\u00edm.<\/p>\n<p><strong>Jak NaOH po\u0161kozuje tk\u00e1\u0148:<\/strong> Na rozd\u00edl od kyselin, kter\u00e9 zp\u016fsobuj\u00ed \u201esuch\u00e9&#8220; pop\u00e1leniny (koagula\u010dn\u00ed nekr\u00f3za), siln\u00e9 z\u00e1sady zp\u016fsobuj\u00ed <strong>liquefaction necrosis<\/strong> \u2014 tk\u00e1\u0148 se doslova rozpou\u0161t\u00ed. To je d\u016fvod, pro\u010d chemick\u00e9 pop\u00e1leniny od louhu se mohou zd\u00e1t m\u00edrn\u011bj\u0161\u00ed ne\u017e jsou \u2014 bolest p\u0159ich\u00e1z\u00ed se zpo\u017ed\u011bn\u00edm, zat\u00edmco po\u0161kozen\u00ed pokra\u010duje. Proto je okam\u017eit\u00e9 a d\u016fkladn\u00e9 opl\u00e1chnut\u00ed absolutn\u011b kl\u00ed\u010dov\u00e9.<\/p>\n<h2 id=\"jake-ochranne-pomucky-potrebujete\">Jak\u00e9 ochrann\u00e9 pom\u016fcky pot\u0159ebujete?<\/h2>\n<p>P\u0159ed prvn\u00ed v\u00fdrobou m\u00fddla si po\u0159i\u010fte tyto ochrann\u00e9 pom\u016fcky \u2014 bez nich nepou\u017e\u00edvejte louh.<\/p>\n<h3 id=\"ochrana-oci-povinna\">Ochrana o\u010d\u00ed (POVINN\u00c1)<\/h3>\n<p><strong>Uzav\u0159en\u00e9 ochrann\u00e9 br\u00fdle<\/strong> (chemical splash goggles) \u2014 ne slune\u010dn\u00ed br\u00fdle, ne pracovn\u00ed br\u00fdle bez bok\u016f. Louh m\u016f\u017ee st\u0159\u00edknout ze strany. Br\u00fdle mus\u00ed m\u00edt uzav\u0159en\u00fd r\u00e1m a dobr\u00e9 t\u011bsn\u011bn\u00ed kolem o\u010d\u00ed. Kde koupit v \u010cR: hobby markety (Baumax, Hornbach, OBI), pracovn\u00ed pot\u0159eby (BOZP obchody), l\u00e9k\u00e1rny. Cena: 80\u2013200 K\u010d.<\/p>\n<p>Pro\u010d jsou br\u00fdle nejd\u016fle\u017eit\u011bj\u0161\u00ed: poran\u011bn\u00ed louhem na k\u016f\u017ei je l\u00e9\u010diteln\u00e9. Poran\u011bn\u00ed oka louhem m\u016f\u017ee zp\u016fsobit trval\u00e9 po\u0161kozen\u00ed zraku nebo slepotu. Toto nen\u00ed stra\u0161en\u00ed \u2014 je to farmakologick\u00e1 realita. Jedna chv\u00edle bez br\u00fdl\u00ed stoj\u00ed sv\u00e9.<\/p>\n<h3 id=\"ochrana-rukou\">Ochrana rukou<\/h3>\n<p><strong>Gumov\u00e9 nebo neoprenov\u00e9 rukavice<\/strong> (ne latexov\u00e9 \u2014 latex je p\u0159\u00edli\u0161 tenk\u00fd a propustn\u00fd). Ide\u00e1ln\u00ed jsou dom\u00e1c\u00ed gumov\u00e9 rukavice do dom\u00e1cnosti (\u017elut\u00e9 nebo r\u016f\u017eov\u00e9) \u2014 dostupn\u00e9 v ka\u017ed\u00e9 drogerii za 30\u201360 K\u010d. Prodlou\u017een\u00e9 rukavice (ke koul\u00edm) poskytuj\u00ed lep\u0161\u00ed ochranu ne\u017e kr\u00e1tk\u00e9, chr\u00e1n\u00ed i spodn\u00ed \u010d\u00e1st p\u0159edlokt\u00ed. P\u0159evl\u00e9kn\u011bte si je pohodln\u011b je\u0161t\u011b ne\u017e otev\u0159ete louh.<\/p>\n<h3 id=\"ochrana-tela\">Ochrana t\u011bla<\/h3>\n<p><strong>Dlouh\u00e9 ruk\u00e1vy<\/strong> a pokryt\u00e9 nohy. Syntetick\u00e1 vl\u00e1kna (polyester, nylon) jsou zraniteln\u00e1 \u2014 preferujte bavlnu nebo pl\u00e1tno. Star\u0161\u00ed oble\u010den\u00ed, kter\u00e9 nevad\u00ed zni\u010dit. Syntetika toti\u017e ulp\u00edv\u00e1 na alkalick\u00fdch \u010d\u00e1stic\u00edch del\u0161\u00ed dobu.<\/p>\n<p><strong>Z\u00e1st\u011bra<\/strong> \u2014 doporu\u010duji plastovou nebo gumovou kuchy\u0148skou z\u00e1st\u011bru. Tkanina m\u016f\u017ee absorbovat roztok a prodlou\u017eit kontakt s k\u016f\u017e\u00ed. Plastov\u00e1 z\u00e1st\u011bra chr\u00e1n\u00ed va\u0161i spodn\u00ed \u010d\u00e1st t\u011bla nejl\u00e9pe.<\/p>\n<h3 id=\"co-mit-po-ruce\">Co m\u00edt po ruce<\/h3>\n<ul>\n<li>Pap\u00edrov\u00e9 ut\u011brky nebo ru\u010dn\u00edk (ne textiln\u00ed \u2014 vzl\u00edn\u00e1 roztok)<\/li>\n<li>\u010cist\u00e1 voda v n\u00e1dob\u011b pro okam\u017eit\u00e9 oplachov\u00e1n\u00ed<\/li>\n<li>Telefon s nabitou bateri\u00ed (v dosahu, bez louhu na rukou)<\/li>\n<li>\u010c\u00edslo na z\u00e1chranku: 155 nebo 112<\/li>\n<\/ul>\n<h2 id=\"jak-spravne-pripravit-louhovaci-roztok\">Jak spr\u00e1vn\u011b p\u0159ipravit louhovac\u00ed roztok?<\/h2>\n<p>Toto je nejrizikov\u011bj\u0161\u00ed \u010d\u00e1st v\u00fdroby m\u00fddla. P\u0159i spr\u00e1vn\u00e9m postupu je ale bezpe\u010dn\u00e1 \u2014 postup trv\u00e1 jen 15 minut.<\/p>\n<h3 id=\"zakladni-pravidlo-vzdy-louh-do-vody-nikdy-voda-do-louhu\">Z\u00e1kladn\u00ed pravidlo: V\u017dDY louh do vody, NIKDY voda do louhu<\/h3>\n<p>Pokud p\u0159ilijete vodu do such\u00e9 n\u00e1doby s louhem, dojde k m\u00edstn\u00edmu p\u0159eh\u0159\u00e1t\u00ed \u2014 m\u016f\u017ee nast\u0159\u00edknout alkalick\u00fd roztok. Pokud p\u0159isyp\u00e1v\u00e1te louh do vody, teplo se rovnom\u011brn\u011b rozptyluje. Toto pravidlo si lze zapamatovat jako: <strong>&#8222;louh do vody, jako whisky do ledu&#8220; \u2014 p\u0159id\u00e1v\u00e1te pevn\u00e9 do kapaln\u00e9ho.<\/strong><\/p>\n<h3 id=\"postup-pripravy-krok-za-krokem\">Postup p\u0159\u00edpravy krok za krokem<\/h3>\n<p><strong>Krok 1: P\u0159\u00edprava prost\u0159ed\u00ed.<\/strong> Otev\u0159ete okno nebo zapn\u011bte digesto\u0159. Nasa\u010fte br\u00fdle a rukavice. Ob\u011b mus\u00ed b\u00fdt nasazeny D\u0158\u00cdVE ne\u017e s louhem manipulujete \u2014 ne a\u017e kdy\u017e vid\u00edte, \u017ee je pot\u0159eba. Odstra\u0148te z pracovn\u00ed plochy v\u0161e nepot\u0159ebn\u00e9 \u2014 p\u0159itom m\u011bjte nasazen\u00e9 br\u00fdle, ne pouze vedle sebe.<\/p>\n<p><strong>Krok 2: Odva\u017ete vodu.<\/strong> Destilovanou nebo p\u0159eva\u0159enou vodu odva\u017ete do n\u00e1doby z nerezov\u00e9 oceli nebo polypropylenu (PP \u2014 ozna\u010den\u00ed na dn\u011b n\u00e1doby \u010d\u00edslem 5). Sklen\u011bn\u00e9 n\u00e1doby jsou funk\u010dn\u00ed, ale riskantn\u00ed \u2014 rychl\u00e9 zah\u0159\u00e1t\u00ed m\u016f\u017ee zp\u016fsobit prasknut\u00ed. Nepodce\u0148ujte tento krok \u2014 objem vody ur\u010duje v\u00fdslednou teplotu.<\/p>\n<p><strong>Krok 3: Odva\u017ete NaOH.<\/strong> V such\u00e9 n\u00e1dob\u011b odva\u017ete NaOH. Pokud NaOH absorboval vlhkost ze vzduchu (hrudky m\u00edsto kuli\u010dek nebo vlo\u010dek), je st\u00e1le pou\u017eiteln\u00fd \u2014 homogenizujte ho rozma\u010dk\u00e1n\u00edm. NaOH skladujte v uzav\u0159en\u00e9 n\u00e1dob\u011b \u2014 vzdu\u0161n\u00e1 vlhkost ho znehodnocuje. P\u0159ed m\u011b\u0159en\u00edm ov\u011b\u0159te, \u017ee je louh such\u00fd a pulverulentn\u00ed.<\/p>\n<p><strong>Krok 4: Pomalu sypejte NaOH do vody.<\/strong> Pomalu sypejte NaOH do vody za st\u00e1l\u00e9ho m\u00edch\u00e1n\u00ed. M\u00edchejte neru\u0161en\u011b \u2014 nevzd\u00e1vejte se odej\u00edt. Roztok se zah\u0159eje, m\u016f\u017ee se zd\u00e1t zaml\u017een\u00fd a uvolnit se v\u00fdpary. Odto\u010dte hlavu od n\u00e1doby, d\u00fdchejte bokem. Proces trv\u00e1 2\u20133 minuty \u2014 trp\u011blivost zde nen\u00ed pot\u0159eba, ale opatrnost ano.<\/p>\n<p><strong>Krok 5: Nechte vychladnout.<\/strong> Louhov\u00fd roztok nechte vychladnout na 35\u201345 \u00b0C (dle receptu). Odlo\u017ete na bezpe\u010dn\u00e9 m\u00edsto \u2014 n\u00e1dobu ozna\u010dte nebo postavte tak, aby bylo jasn\u00e9, co obsahuje. Louhov\u00fd roztok po vychladnut\u00ed vypad\u00e1 jako \u010dir\u00e1 voda \u2014 p\u0159ehledn\u00e9 ozna\u010den\u00ed zabr\u00e1n\u00ed z\u00e1m\u011bn\u011b. Chladnut\u00ed trv\u00e1 30\u201345 minut \u2014 lze je urychlit vlo\u017een\u00edm n\u00e1doby do ledov\u00e9 vody.<\/p>\n<h2 id=\"co-delat-pri-kontaktu-s-louhem\">Co d\u011blat p\u0159i kontaktu s louhem?<\/h2>\n<h3 id=\"kontakt-s-kuzi\">Kontakt s k\u016f\u017e\u00ed<\/h3>\n<ol>\n<li><strong>Okam\u017eit\u011b<\/strong> opl\u00e1chn\u011bte posti\u017een\u00e9 m\u00edsto studenou tekouc\u00ed vodou.<\/li>\n<li>Oplachujte minim\u00e1ln\u011b <strong>15\u201320 minut<\/strong> \u2014 ne minutu nebo dv\u011b. Dvacet minut \u2014 bez v\u00fdjimky.<\/li>\n<li>Sundejte kontaminovan\u00e9 oble\u010den\u00ed nebo \u0161perky, pokud je to bezpe\u010dn\u00e9.<\/li>\n<li>Nepou\u017e\u00edvejte kyselinu (ocet, citronov\u00e1 \u0161\u0165\u00e1va) pro neutralizaci \u2014 zp\u016fsobuje exotermickou reakci a prodlu\u017euje poran\u011bn\u00ed. Jen voda \u2014 \u010dist\u00e1, studen\u00e1, tekouc\u00ed voda.<\/li>\n<li>Po oplachu kontaktujte l\u00e9ka\u0159e nebo toxikologick\u00e9 centrum \u2014 i mal\u00e9 pop\u00e1leniny od louhu mohou b\u00fdt z\u00e1va\u017en\u011bj\u0161\u00ed, ne\u017e vypadaj\u00ed.<\/li>\n<\/ol>\n<h3 id=\"kontakt-s-okem-nalehave\">Kontakt s okem \u2014 NAL\u00c9HAV\u00c9<\/h3>\n<ol>\n<li><strong>Okam\u017eit\u011b<\/strong> opl\u00e1chn\u011bte oko tekouc\u00ed vodou \u2014 proudem ze sprchy, z kohoutu nebo ze z\u00e1sobn\u00ed n\u00e1doby s vodou.<\/li>\n<li>Oplachujte <strong>minim\u00e1ln\u011b 20\u201330 minut<\/strong> \u2014 oko dr\u017ete otev\u0159en\u00e9, i p\u0159es bolest. To je nejd\u016fle\u017eit\u011bj\u0161\u00ed.<\/li>\n<li>Vyt\u00e1hn\u011bte p\u0159\u00edpadn\u00e9 kontaktn\u00ed \u010do\u010dky, pokud to jde bez p\u0159eru\u0161en\u00ed oplachov\u00e1n\u00ed.<\/li>\n<li><strong>Volejte z\u00e1chranku (155) nebo jedete na pohotovost<\/strong> \u2014 poran\u011bn\u00ed oka louhem je l\u00e9ka\u0159sk\u00e1 nal\u00e9havost. Ne\u010dekejte, aby se stav zhor\u0161il.<\/li>\n<\/ol>\n<h3 id=\"poziti\">Po\u017eit\u00ed<\/h3>\n<ol>\n<li><strong>Nesna\u017ete se vyvolat zvracen\u00ed<\/strong> \u2014 zp\u011btn\u00e1 cesta louhu zp\u016fsob\u00ed dal\u0161\u00ed poran\u011bn\u00ed hlasit\u011bl\u016fm a j\u00edcnu.<\/li>\n<li>Dejte posti\u017een\u00e9mu vyp\u00edt 200\u2013300 ml vody nebo ml\u00e9ka, pokud je p\u0159i v\u011bdom\u00ed.<\/li>\n<li>Volejte z\u00e1chranku (155) nebo toxikologick\u00e9 centrum: 224 919 293.<\/li>\n<\/ol>\n<h2 id=\"jak-skladovat-hydroxid-sodny-bezpecne\">Jak skladovat hydroxid sodn\u00fd bezpe\u010dn\u011b?<\/h2>\n<p>NaOH je hygroskopick\u00fd \u2014 absorbuje vlhkost ze vzduchu a postupn\u011b se znehodnocuje. Spr\u00e1vn\u00e9 skladov\u00e1n\u00ed:<\/p>\n<ul>\n<li><strong>V uzav\u0159en\u00e9 vzduchot\u011bsn\u00e9 n\u00e1dob\u011b<\/strong> (origin\u00e1ln\u00ed obal nebo plastov\u00e1 krabi\u010dka s v\u00edkem) \u2014 vzduchu mus\u00ed b\u00fdt co nejm\u00e9n\u011b<\/li>\n<li><strong>Na such\u00e9m m\u00edst\u011b, mimo dosah d\u011bt\u00ed<\/strong> \u2014 vn\u011b d\u011btsk\u00e9 lo\u017enice, mimo dosah zv\u00eddav\u00fdch rukou<\/li>\n<li><strong>Odd\u011blen\u011b od potravin, kosmetiky a l\u00e9k\u016f<\/strong> \u2014 aby nedo\u0161lo k z\u00e1m\u011bn\u011b<\/li>\n<li><strong>Mimo dosah vlhkosti, tepla a p\u0159\u00edm\u00e9ho slunce<\/strong> \u2014 skl\u00e1d jej v chladn\u00e9 tmav\u00e9 m\u00edstnosti<\/li>\n<\/ul>\n<p>Ozna\u010dte n\u00e1dobu jasn\u011b: <strong>\u201eNaOH \u2014 louh sodn\u00fd \u2014 NEBEZPE\u010cN\u00c9&#8220;<\/strong>. Barva etikety zjednodu\u0161\u00ed identificita.<\/p>\n<p>NaOH spr\u00e1vn\u011b uskladn\u011bn\u00fd vydr\u017e\u00ed roky. Pokud tvo\u0159\u00ed hrudky (zvlhl), lze ho usu\u0161it v troub\u011b p\u0159i 100 \u00b0C nebo pou\u017e\u00edt ihned \u2014 koncentrace se nem\u011bn\u00ed, ale odva\u017eov\u00e1n\u00ed hrudek je m\u00e9n\u011b p\u0159esn\u00e9. Hrudky se daj\u00ed rozml\u00edt ve st\u011bra\u010di, aby se usnadnilo odv\u00e1\u017een\u00ed.<\/p>\n<h3 id=\"kde-koupit-naoh-v-cr\">Kde koupit NaOH v \u010cR<\/h3>\n<p>V \u010cesk\u00e9 republice je hydroxid sodn\u00fd dostupn\u00fd voln\u011b pro dom\u00e1c\u00ed a pr\u016fmyslov\u00e9 pou\u017eit\u00ed. Prod\u00e1v\u00e1 se jako:<\/p>\n<ul>\n<li><strong>\u010cisti\u010d odpadn\u00edho potrub\u00ed<\/strong> (Drano, Dr. Max \u010disti\u010d odpad\u016f, Krait) \u2014 hledejte v\u00fdrobky s obsahem <strong>100 % NaOH<\/strong>. Vyvarujte se produkt\u016f s p\u0159\u00edsadami (enzymy, parf\u00e9m, p\u011bnidla) \u2014 ty nejsou vhodn\u00e9 pro m\u00fddlo.<\/li>\n<li><strong>V l\u00e9k\u00e1rn\u00e1ch<\/strong> \u2014 hydroxid sodn\u00fd v granul\u00edch nebo vlo\u010dk\u00e1ch (Natrium hydroxydatum, NaOH) \u2014 \u010distota zaru\u010den\u00e1.<\/li>\n<li><strong>E-shopy pro v\u00fdrobu m\u00fddla<\/strong> \u2014 NaOH certifikovan\u00e1 \u010distota, vhodn\u00e9 pro kosmetick\u00e9 produkty ur\u010den\u00e9 k prodeji.<\/li>\n<\/ul>\n<p>Upozorn\u011bn\u00ed: Na\u0159\u00edzen\u00ed EU 2016\/1013 omezuje prodej NaOH v koncentraci nad 12 % (roztok) pro spot\u0159ebitele bez registrace \u2014 ale <strong>pevn\u00fd NaOH<\/strong> (granule, vlo\u010dky) je kategorie mimo toto omezen\u00ed a voln\u011b prodejn\u00fd. V \u010cR neexistuje povinnost registrace pro n\u00e1kup pevn\u00e9ho NaOH pro dom\u00e1c\u00ed v\u00fdrobu m\u00fddla.<\/p>\n<h2 id=\"jak-likvidovat-zbytky-a-odpady\">Jak likvidovat zbytky a odpady?<\/h2>\n<p><strong>P\u0159ebyte\u010dn\u00fd louhovac\u00ed roztok<\/strong> \u2014 p\u0159ed v\u00fdrobou: zcela z\u0159ed\u011bte ve velk\u00e9 n\u00e1dob\u011b vody a nalijte do d\u0159ezu. Nikdy nel\u00e9v\u00e1me koncentrovan\u00fd louh do d\u0159ezu nebo z\u00e1chodu \u2014 po\u0161kozuje plastov\u00e9 potrub\u00ed. P\u0159ed splachem ov\u011b\u0159te, \u017ee je louh dostate\u010dn\u011b z\u0159ed\u011bn\u00fd \u2014 m\u011bl by b\u00fdt skoro neviditeln\u00fd.<\/p>\n<p><strong>Za\u0159\u00edzen\u00ed po pou\u017eit\u00ed<\/strong> \u2014 ponorn\u00fd mix\u00e9r, misky a n\u00e1stroje opl\u00e1chn\u011bte vodou. \u010cerstv\u00fd louhov\u00fd roztok na n\u00e1dob\u00e1ch je bezpe\u010dn\u00e9 opl\u00e1chnout pod tekouc\u00ed vodou. Pou\u017eijte rukavice \u2014 i po oplachu mohou zbytky \u0161t\u00edpat. Opakujte oplach dvakr\u00e1t.<\/p>\n<p><strong>Zbytky NaOH<\/strong> \u2014 nevyhazujte do komun\u00e1ln\u00edho odpadu. Kontaktujte m\u00edstn\u00ed sb\u011brn\u00fd dv\u016fr nebo zeptejte se v l\u00e9k\u00e1rn\u011b \u2014 nem\u011bly by b\u00fdt probl\u00e9m s likvidac\u00ed jako chemick\u00e9ho odpadu.<\/p>\n<h2 id=\"desatero-bezpecne-prace-s-louhem\">Desatero bezpe\u010dn\u00e9 pr\u00e1ce s louhem<\/h2>\n<ol>\n<li><strong>V\u017edy ochrann\u00e9 br\u00fdle<\/strong> \u2014 bez v\u00fdjimky, po celou dobu pr\u00e1ce s louhem.<\/li>\n<li><strong>V\u017edy rukavice<\/strong> \u2014 gumov\u00e9 nebo neoprenov\u00e9, ob\u011b na t\u011ble d\u0159\u00edve ne\u017e louh otev\u0159ete.<\/li>\n<li><strong>Louh V\u017dDY do vody<\/strong> \u2014 nikdy voda do louhu. Zapome\u0148te to \u2014 a p\u0159ijdete o o\u010di.<\/li>\n<li><strong>Pracujte v v\u011btran\u00e9m prostoru<\/strong> \u2014 u okna nebo pod digesto\u0159\u00ed, bez ohledu na ro\u010dn\u00ed dobu.<\/li>\n<li><strong>Ozna\u010dte louhov\u00fd roztok<\/strong> \u2014 nezam\u011b\u0148te s vodou. Viditeln\u00e1 etiketa stoj\u00ed za sv\u016fj \u010das.<\/li>\n<li><strong>Nepou\u017e\u00edvejte hlin\u00edkov\u00e9 n\u00e1doby<\/strong> \u2014 ani n\u00e1doby z c\u00ednu nebo zinku. Jen nerez a plasty.<\/li>\n<li><strong>M\u011bjte vodu v dosahu<\/strong> \u2014 pro okam\u017eit\u00e9 oplachov\u00e1n\u00ed. Ne\u017e za\u010dnete, v\u011bd\u011bte, kde je.<\/li>\n<li><strong>Nenech\u00e1vejte pracovn\u00ed m\u00edsto opu\u0161t\u011bn\u00e9<\/strong> \u2014 jakmile jste v procesu, z\u016fsta\u0148te. Nen\u00ed na to \u010das na toiletu.<\/li>\n<li><strong>P\u0159i kontaktu: oplachujte 20 minut<\/strong> \u2014 ne m\u00e9n\u011b. \u010casova\u010d se hod\u00ed.<\/li>\n<li><strong>Telefon na dosah<\/strong> \u2014 a \u010d\u00edslo z\u00e1chrann\u00e9 slu\u017eby v pam\u011bti (155).<\/li>\n<\/ol>\n<h2 id=\"caste-otazky\">\u010cast\u00e9 ot\u00e1zky<\/h2>\n<p><strong>Jak pozn\u00e1m, \u017ee jsem se louhem opamatl?<\/strong> Louh zp\u016fsobuje chemick\u00e9 pop\u00e1leniny \u2014 sliznat\u00fd pocit, z\u010derven\u00e1n\u00ed, pozd\u011bji puch\u00fd\u0159e. Pokud si nejste jisti, opl\u00e1chn\u011bte 20 minut \u2014 nen\u00ed co ztr\u00e1cet. Mal\u00e9 mno\u017estv\u00ed nen\u00ed smrteln\u00e9, ale velk\u00e9 je nebezpe\u010dn\u00e9.<\/p>\n<p><strong>Co kdy\u017e jsem si vyt\u0159el louh do o\u010d\u00ed?<\/strong> Okam\u017eit\u011b do nejbli\u017e\u0161\u00edho zdroje \u010dist\u00e9 vody (sprcha, kohoutek). Oplachujte 20\u201330 minut bez p\u0159est\u00e1n\u00ed, dr\u017ete oko otev\u0159en\u00e9. Pak z\u00e1chranka 155 \u2014 nejednejte si s t\u00edm sami, i kdy\u017e se to zd\u00e1 m\u00edrn\u00e9.<\/p>\n<p><strong>Mohu pou\u017e\u00edvat stejn\u00fd mix\u00e9r na j\u00eddlo a na m\u00fddlo?<\/strong> Technicky ano, pokud ho po\u0159\u00e1dn\u011b umyjete \u2014 ale nejsem bych to d\u011blal. Louh zanech\u00e1v\u00e1 pachovou stopu, kterou obt\u00ed\u017en\u011b a zcela se nemenuje. Lep\u0161\u00ed koupit star\u00fd mix\u00e9r za 50 K\u010d na Bazo\u0161ovi.<\/p>\n<p><strong>Je NaOH v zral\u00e9m m\u00fddle?<\/strong> Ne. Po dokon\u010den\u00e9 saponifikaci (24\u201348 hodin) \u017e\u00e1dn\u00fd voln\u00fd louh v m\u00fddle nen\u00ed \u2014 v\u0161echen reagoval s oleji. Zral\u00e9 m\u00fddlo (4+ t\u00fddny) je alkalick\u00e9 (pH 9\u201310), ale neobsahuje NaOH jako takov\u00fd. Test jazyka potvrd\u00ed, \u017ee je bezpe\u010dn\u00e9.<\/p>\n<p><strong>Stane se mi n\u011bco, kdy\u017e se louhem zabrod\u00edm?<\/strong> Mal\u00e9 zast\u0159iknut\u00ed \u2014 opl\u00e1chete a pokra\u010dujete. Velk\u00e1 spr\u0161\u0165 \u2014 z\u00e1chranka a l\u00e9ka\u0159. Louh nen\u00ed otrava \u2014 je to kaustika. Postupuj s rozumem: ochrana, opl\u00e1chnut\u00ed, l\u00e9ka\u0159, pokud je pot\u0159eba.<\/p>\n<h2 id=\"viz-take\">Viz tak\u00e9<\/h2>\n<ul>\n<li><a href=\"\/cs\/mydlo\/co-je-cold-process\/\">Co je cold process m\u00fddlo a jak funguje<\/a> \u2014 \u00favod do v\u00fdroby m\u00fddla<\/li>\n<li><a href=\"\/cs\/mydlo\/prvni-recept\/\">V\u00e1\u0161 prvn\u00ed recept krok za krokem<\/a> \u2014 praktick\u00fd pr\u016fvodce pro za\u010d\u00e1te\u010dn\u00edky<\/li>\n<li><a href=\"\/cs\/mydlo\/vybaveni-cr\/\">Vybaven\u00ed pro v\u00fdrobu m\u00fddla v \u010cR<\/a> \u2014 kde koupit ochrann\u00e9 pom\u016fcky a n\u00e1doby<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>TL;DR: Hydroxid sodn\u00fd je jedinou nebezpe\u010dnou ingredienc\u00ed v v\u00fdrob\u011b m\u00fddla. P\u0159i spr\u00e1vn\u00e9m pou\u017eit\u00ed ochrann\u00fdch br\u00fdl\u00ed a rukavic je pr\u00e1ce s [&hellip;]<\/p>\n","protected":false},"author":0,"featured_media":0,"parent":95,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-26","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.7virides.com\/cs\/wp-json\/wp\/v2\/pages\/26","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.7virides.com\/cs\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.7virides.com\/cs\/wp-json\/wp\/v2\/types\/page"}],"replies":[{"embeddable":true,"href":"https:\/\/www.7virides.com\/cs\/wp-json\/wp\/v2\/comments?post=26"}],"version-history":[{"count":2,"href":"https:\/\/www.7virides.com\/cs\/wp-json\/wp\/v2\/pages\/26\/revisions"}],"predecessor-version":[{"id":139,"href":"https:\/\/www.7virides.com\/cs\/wp-json\/wp\/v2\/pages\/26\/revisions\/139"}],"up":[{"embeddable":true,"href":"https:\/\/www.7virides.com\/cs\/wp-json\/wp\/v2\/pages\/95"}],"wp:attachment":[{"href":"https:\/\/www.7virides.com\/cs\/wp-json\/wp\/v2\/media?parent=26"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}