{"id":1060,"date":"2018-02-19T23:50:23","date_gmt":"2018-02-19T23:50:23","guid":{"rendered":"https:\/\/kamenovo.cz\/?p=1060"},"modified":"2018-02-19T23:50:23","modified_gmt":"2018-02-19T23:50:23","slug":"opet-borax-jak-uzivat","status":"publish","type":"post","link":"https:\/\/kamenovo.cz\/index.php\/2018\/02\/19\/opet-borax-jak-uzivat\/","title":{"rendered":"Op\u011bt borax&#8230;.. jak u\u017e\u00edvat"},"content":{"rendered":"<p><strong>K<\/strong><strong>yselina B\u00f3rov\u00e1<\/strong><\/p>\n<p>Bezbarv\u00e9 krystalky nebo b\u00edl\u00fd pr\u00e1\u0161ek (H<sub>3<\/sub>BO<sub>3<\/sub>) rozpustn\u00fd ve vod\u011b. Lze p\u0159ipravit reakc\u00ed boraxu s HCl. Na2B4O7\u00b710H2O + 2 HCl ? 4 B(OH)3 [or H3BO3] + 2 NaCl + 5 H2O.<\/p>\n<p>Rozpustnost ve vod\u011b p\u0159i 20 \u00b0C je&nbsp; 4.72 g\/100 ml <strong>[Wikipedie]<\/strong><\/p>\n<p><!--more--><\/p>\n<p><strong>P\u0159\u00edznaky nedostatku<\/strong><\/p>\n<p>Z\u00e1va\u017en\u00fd nedostatek b\u00f3ru zp\u016fsobuje nenorm\u00e1ln\u00ed metabolismus v\u00e1pn\u00edku a magnesia, hyperthyroiditis, nevyrovnan\u00e9 hladiny sexu\u00e1ln\u00edch hormon\u016f, osteoporosis, zubn\u00ed kazy a odstupuj\u00edc\u00ed d\u00e1sn\u011b, revmatismus, selh\u00e1v\u00e1n\u00ed funkce mozku, zapom\u011btlivost, deprese, podr\u00e1\u017ed\u011bnost, syndrom karp\u00e1ln\u00edho tunelu, kloubn\u00ed onemocn\u011bn\u00ed, slabost a bolesti sval\u016f,<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Prosp\u011b\u0161nost<\/strong><\/p>\n<p>B\u00f3r je \u017eivotn\u011b d\u016fle\u017eit\u00fd element nutn\u00fd pro norm\u00e1ln\u00ed r\u016fst a zdrav\u00ed. Jev\u00ed se dost nezbytn\u00fdm pro udr\u017een\u00ed v\u00e1pn\u00edku a ho\u0159\u010d\u00edku v kostech. 95% p\u0159\u00edpad\u016f revmatismu dozn\u00e1 v\u00fdrazn\u00e9ho zlep\u0161en\u00ed d\u00edky integraci v\u00e1pn\u00edku a ho\u0159\u010d\u00edku do chrupavky a kosti kloub\u016f dopl\u0148ov\u00e1n\u00edm b\u00f3ru. Denn\u00ed d\u00e1vka 9-10 mg je asi schopn\u00e1 vym\u00fdtit b\u011b\u017en\u00fd revmatismus. Tomu nasv\u011bd\u010duje u\u017e to, \u017ee oblasti v Austr\u00e1lii s 4.3 mg\/l ve vod\u011b neznaj\u00ed revmatismus jak u lid\u00ed, tak i u zv\u00ed\u0159at. Stejn\u00e9 plat\u00ed pro oblasti bohat\u00e9 na boron na severu Nov\u00e9ho Z\u00e9landu, v Israeli a v Africe. <strong>[Journal Applied Nutrition 46: 81-85, 1994]<\/strong>. V oblastech chud\u00fdch na b\u00f3ru, s p\u0159\u00edjmem men\u0161\u00edm ne\u017e 1 mg denn\u011b, se v\u00fdskyt revmatismu pohybuje mezi 20% &#8211; 70%, zat\u00edmco v oblastech s p\u0159\u00edjmem&nbsp; 3-10 mg denn\u011b je v\u00fdskyt 0\u201310%. <strong>[Environmental Health Perspectives 102: 83-85S, 1994]<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>B\u00f3r n\u011bjak\u00fdm zp\u016fsobem podporuje produkci estrogenu a testosteronu. M\u00e1 pozitivn\u00ed vliv na \u017eeny v p\u0159echodu a dok\u00e1\u017ee jim vr\u00e1tit libido b\u011bhem n\u011bkolika dn\u00ed . Tak\u00e9 pom\u00e1h\u00e1 s n\u00e1r\u016fstem svaloviny a je pro tento \u00fa\u010del vyu\u017e\u00edv\u00e1n sportovci. <strong>[Environmental Health Perspectives 102: 59-63S, 1994]<\/strong> Tato regulace take nesm\u00edrn\u011b ovliv\u0148uje zdrav\u00ed kost\u00ed a zub\u016f svou schopnost\u00ed regulovat ho\u0159\u010d\u00edk, v\u00e1pn\u00edk, m\u011bd\u2019 a fosfor a udr\u017euje je p\u0159i zdrav\u00ed. Tento efekt je nejv\u00edce patrn\u00fd p\u0159i nedostatc\u00edch t\u011bchto element\u016f pokud je dostatek boronu . Jeho dod\u00e1v\u00e1n\u00ed zabra\u0148uje osteopor\u00f3ze po p\u0159echodu u \u017een a v mnoha p\u0159\u00edpadech tak\u00e9 uleh\u010duje mnoho p\u0159\u00edznak\u016f p\u0159echodu.<\/p>\n<p>&nbsp;<\/p>\n<p>B\u00f3r je nesm\u00edrn\u011b d\u016fle\u017eit\u00fd pro reprodukci a zdrav\u00ed plodu, i kdy\u017e na tento vliv nen\u00ed moc informac\u00ed. D\u00e1le m\u00e1 velk\u00fd vliv na funkci mozku a t\u00edm na fyzickou pohybovou koordinaci, pam\u011b\u0165 a soust\u0159ed\u011bn\u00ed. <strong>[Biological Trace Element Research 66: 299-317, 1998]<\/strong> Boron siln\u011b ovliv\u0148uje membr\u00e1novou l\u00e1tkovou v\u00fdm\u011bnu a stabilizuje hormon\u00e1ln\u00ed v\u00fdm\u011bnu. Tak\u00e9 m\u00e1 vliv na sr\u00e1\u017elivost krve, redukuje n\u00e1nosy tuk\u016f a cholesterol a ulevuje pot\u00ed\u017e\u00edm p\u0159i srde\u010dn\u00edch nemocech. Tak\u00e9 velmi pozitivn\u011b ovliv\u0148uje infekce pl\u00edsn\u011bmi jako je candida albicanis.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Prostata<\/strong><\/p>\n<p>Ned\u00e1vn\u00e1 studie porovnala dietu se zam\u011b\u0159en\u00edm na b\u00f3r u 76 mu\u017e\u016f s rakovinou prostaty a 7651 relativn\u011b zdrav\u00fdch mu\u017e\u016f. Studie prok\u00e1zala, \u017ee dostate\u010dn\u00fd p\u0159\u00edjem b\u00f3ru sni\u017euje riziko rakoviny prostaty o 64%. V tomto p\u0159\u00edpad\u011b je b\u00f3r nejenom prevenc\u00ed, ale tak\u00e9 m\u016f\u017ee b\u00fdt v\u00fdznamn\u00fd p\u0159i l\u00e9\u010den\u00ed. Dod\u00e1v\u00e1n\u00ed b\u00f3ru my\u0161\u00edm zmen\u0161ilo n\u00e1dory z implantovan\u00e9 rakovinn\u00e9 kultury o 25% a\u017e 38% a sn\u00ed\u017eilo PSA indicator o cca 87%.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<strong>Mozek<\/strong><\/p>\n<p>&nbsp;S\u00e9rie studi\u00ed opakovan\u011b ukazuj\u00ed, \u017ee nedostatek boronu u zv\u00ed\u0159at, stejn\u011b jako u \u010dlov\u011bka vede k neblah\u00fdm d\u016fsledk\u016fm patologick\u00fdch zm\u011bn elektrick\u00fdch sign\u00e1l\u016f v mozku, kter\u00e9 se projevuj\u00ed omezenou koordinac\u00ed, sost\u0159ed\u011bnost\u00ed a neblaze ovliv\u0148uj\u00ed kr\u00e1tkodobou pam\u011bt. <strong>(Penland 1998)<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Jedovatos<\/strong><\/p>\n<p>Je t\u0159eba si uv\u011bdomit, \u017ee d\u00e1vky nad 100 mg denn\u011b mohou b\u00fdt jedovat\u00e9.<\/p>\n<p>&nbsp;<\/p>\n<p>Akutn\u00edmi p\u0159\u00edznaky jsou: nevolnost a zvracen\u00ed, slabost, bolesti hlavy, pr\u016fjem, po\u0161kozen\u00ed ledvin, moment\u00e1ln\u00ed stimulace nervov\u00e9ho syst\u00e9mu s n\u00e1sledovnou depres\u00ed, vyr\u00e1\u017eky, k\u0159e\u010de a eventueln\u011b smrt na selh\u00e1n\u00ed krevn\u00edho ob\u011bhu.<\/p>\n<p>&nbsp;<\/p>\n<p>\u00dadaje z n\u00e1hodn\u00fdch otrav lid\u00ed ukazuj\u00ed, \u017ee smrteln\u00e1 d\u00e1vka b\u00f3ru je u dosp\u011bl\u00fdch mezi 15000-20000 mg\/kg v\u00e1hy boronu. Merck index \u010d.13 ud\u00e1v\u00e1, \u017ee 5000-20000 mg\/kg <strong>(= 0.35 kg &#8211; 1.4 kg na 70 kg \u010dlov\u011bka)<\/strong> kyseliny b\u00f3rov\u00e9 je smrtelnou d\u00e1vkou pro \u010dlov\u011bka. Kyselina b\u00f3rov\u00e1 tedy nen\u00ed o moc jedovat\u011bj\u0161\u00ed ne\u017e kuchy\u0148sk\u00e1 s\u016fl <strong>(p\u0159i 0.259 kg na 70 kg v\u00e1hy)<\/strong>. Nicm\u00e9n\u011b, evropsk\u00e1 Diagnostics Manufacturing Association (EDMA) ned\u00e1vno p\u0159eklasifikovala (CAS 10043-35-3 \/ 11113-50-1) kyselinu b\u00f3rovou na prudce jedovatou slou\u010deninu.<\/p>\n<p>&nbsp;<\/p>\n<p>Chronick\u00e1 otrava b\u00f3rem se projevuje vyr\u00e1\u017ekami, podv\u00fd\u017eivou z nechutenstv\u00ed a ztr\u00e1tou vlas\u016f a chlup\u016f.<\/p>\n<p>Studie u zv\u00ed\u0159at&nbsp; prokazuj\u00ed men\u0161\u00ed v\u00e1hu plodu s deformacemi kost\u00ed, po\u0161kozen\u00edm centr\u00e1ln\u00edho nervov\u00e9ho syst\u00e9mu v\u010detn\u011b mozku, vodnatelnost mozku a vyplavov\u00e1n\u00ed miner\u00e1l\u016f z t\u011bla. Tyto projevy jsou pozorovateln\u00e9 p\u0159i dod\u00e1v\u00e1n\u00ed 10 mg\/kg denn\u011b <strong>(700 mg na 70 kg zv\u00ed\u0159e )<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Hranice jedovatosti nebyla u \u010dlov\u011bka stanovena. Obsah b\u00f3ru ve vod\u011b v n\u011bkter\u00fdch mal\u00fdch lokalit\u00e1ch Turecka je a\u017e 29 mg\/l. Nicm\u00e9n\u011b se nena\u0161ly d\u016fkazy, \u017ee by tento vysok\u00fd obsah m\u011bl jak\u00fdkoliv patologick\u00fd vliv na obyvatele. Zdrav\u00ed lid\u00e9 boron absorbuj\u00ed a vylu\u010duj\u00ed mo\u010d\u00ed velmi lehce. Lidi s nemocn\u00fdmi ledvinami v\u0161ak mohou b\u00f3r akumulovat v srdci, ledvin\u00e1ch a v mozku.<\/p>\n<p>&nbsp;<\/p>\n<p>Boron byl tak\u00e9 pou\u017e\u00edv\u00e1n k l\u00e9\u010den\u00ed a kontrole epilepsie v d\u00e1vk\u00e1ch 2.5-24.8 mg\/kg denn\u011b <strong>(max 1736 mg\/day)<\/strong> po mnoho let. P\u0159\u00edznaky otravy se projevily u n\u011bkter\u00fdch pacient\u016f u\u017e p\u0159i p\u0159\u00edjmu 5 mg\/kg denn\u011b <strong>(350 mg\/denn\u011b)<\/strong>. Zastaven\u00ed tohoto l\u00e9\u010den\u00ed v\u0161ak zastavilo i p\u0159\u00edznaky bez trval\u00fdch n\u00e1sledk\u016f. <strong>(Culver and Hubbard 1996)<\/strong>.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Ofici\u00e1ln\u00ed d\u00e1vkov\u00e1n\u00ed dopl\u0148k\u016f <\/strong><\/p>\n<p><strong>(veli\u010diny element\u00e1rn\u00edho boronu)<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Kanada &#8211; Health Canada kdysi stanovila maxim\u00e1ln\u00ed d\u00e1vky dietn\u00edch dopl\u0148k\u016f boronu na 0.7 mg denn\u011b s pou\u017eit\u00edm n\u00e1soben\u00ed bezpe\u010dnostn\u00edch faktor\u016f a\u017e 1 : 1000.<\/p>\n<p><strong>Tak\u017ee zat\u00edmco 29 mg\/l v pitn\u00e9 vod\u011b nen\u00ed definitivn\u011b jedovat\u00fdch, 700 mg\/70kg savce je hranic\u00ed chronick\u00e9 jedovatosti u zv\u00ed\u0159at a zat\u00edmco 100 mg denn\u011b je je\u0161t\u011b definitivn\u011b bezpe\u010dn\u00e1 d\u00e1vka pro lidi, Kanada se tehdy rozhodla, \u017ee 0.7 mg denn\u011b je maxim\u00e1ln\u00ed dosp\u011bl\u00e1ck\u00e1 d\u00e1vka dopl\u0148k\u016f.<\/strong><\/p>\n<p><strong>&nbsp;<\/strong><\/p>\n<p>Pot\u00e9, co Austr\u00e1lie povolila 3 mg denn\u011b, n\u00e1sledovala Kanada a p\u0159epo\u010d\u00edtala \u010d\u00edsla na maximum 3.36 mg denn\u011b v dopl\u0148c\u00edch a to p\u0159es sv\u016fj vlastn\u00ed \u00fadaj: \u201cv\u00edno obsahuje a\u017e 8.5 mg\/l.\u201d (Health Canada 1991)<\/p>\n<p>&nbsp;<\/p>\n<p>USA &#8211;&nbsp; 20 mg denn\u011b v dopl\u0148c\u00edch (IOM 2001).<\/p>\n<p>EU &#8211; 10 mg denn\u011b v dopl\u0148c\u00edch (European Food Safety Authority 2004)<\/p>\n<p>UK \u2013 Denn\u00ed \u017eivotn\u00ed celkov\u00e1 d\u00e1vka 9.6 mg na 60 kg v\u00e1hy<\/p>\n<p>WHO &#8211;&nbsp; Denn\u00ed \u017eivotn\u00ed celkov\u00e1 d\u00e1vka 28 mg\/day na 70 kg v\u00e1hy<\/p>\n<p>&nbsp;<\/p>\n<p><strong>V\u0161echna tato \u010d\u00edsla byla odvozena z jedn\u00e9 a t\u00e9 sam\u00e9 studie krys na kterou poukazuj\u00ed.<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><strong>Vst\u0159eb\u00e1v\u00e1n\u00ed a vylu\u010dov\u00e1n\u00ed<\/strong><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>\u00dastn\u011b pod\u00e1van\u00fd b\u00f3r se lehce a kompletn\u011b vst\u0159eb\u00e1v\u00e1 (&gt;90%) v za\u017e\u00edvac\u00edm \u00fastroj\u00ed v podob\u011b kyseliny b\u00f3rov\u00e9. <strong>(Hunt 1996; Murray 1998)<\/strong>.<\/li>\n<li>Kyselina b\u00f3rov\u00e1 se rychle, pasivn\u011b roz\u0161\u00ed\u0159\u00ed s t\u011blesn\u00fdmi tekutinami <strong>(Hamilton and Minski 1973; Murray 1998)<\/strong><\/li>\n<li>Boron se neukl\u00e1d\u00e1 v m\u011bkk\u00fdch tk\u00e1n\u00edch <strong>(Samman et al. 1998; Nielsen 1986; Murray 1998)<\/strong><\/li>\n<li>Boron se nevst\u0159eb\u00e1v\u00e1 p\u0159es nepo\u0161kozenou poko\u017eku, ale pouze p\u0159es otev\u0159en\u00e9 r\u00e1ny, \u00fastn\u011b a vdechnut\u00edm. <strong>(USEPA-IRIS 2004)<\/strong><\/li>\n<li>Kyselina b\u00f3rov\u00e1 je okam\u017eit\u011b vylu\u010dov\u00e1na mo\u010d\u00ed <strong>(94% ze 100%, Samman et al. 1998) <\/strong>a 92% je ho vylou\u010deno b\u011bhem 96 hodin <strong>(Schou et al. 1984)<\/strong>. Polo\u010das vylu\u010dov\u00e1n\u00ed je 21 hodin bez ohledu na zp\u016fsob administrace, zda \u00fastn\u00ed, \u010di injekc\u00ed <strong>(Jansen et al. 1984b)<\/strong>.<\/li>\n<li>Kyselina b\u00f3rov\u00e1 v mastech a obkladech na otev\u0159en\u00fdch ran\u00e1ch a v o\u010dn\u00edch roztoc\u00edch je velice jedovat\u00e1 pro batolata, p\u0159edev\u0161\u00edm p\u0159i opakovan\u00e9 aplikaci, d\u00edky jej\u00edmu pomal\u00e9mu vylu\u010dov\u00e1n\u00ed. <strong>Ringdahl, EN (2000)<\/strong><br \/>\n<strong>Tak se snad pod\u00edvejte na p\u0159ede\u0161l\u00fd bod.<\/strong><\/li>\n<li>Lid\u00e9 s t\u011b\u017ece nemocn\u00fdmi ledvinami mohou m\u00edt zv\u00fd\u0161en\u00fd obsah b\u00f3ru v krvi p\u0159ed dial\u00fdzou (<strong>laboratorn\u00ed nemocni\u010dn\u00ed \u010di\u0161t\u011bn\u00ed krve<\/strong>), co\u017e napov\u00edd\u00e1, \u017ee siln\u011b nemocn\u00e9 a po\u0161kozen\u00e9 ledviny vylu\u010duj\u00ed boron s pot\u00ed\u017eemi.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><strong>&nbsp;<\/strong><\/p>\n<p><strong>V\u00fd\u0148atky z \u010dl\u00e1nku&nbsp; Seema Adnani<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Experimenty s dopl\u0148ov\u00e1n\u00edm a omezov\u00e1n\u00edm dietn\u00edho b\u00f3ru ukazuj\u00ed, \u017ee b\u00f3r souvis\u00ed s metabolismem v\u00e1pn\u00edku a kost\u00ed v\u016fbec, a \u017ee projevy jsou o dost v\u00fdrazn\u011bj\u0161\u00ed, pokud je ho nedostatek. Slou\u010deniny b\u00f3ru uk\u00e1zaly, \u017ee maj\u00ed siln\u00fd vliv na prevenci osteoporozy, prevenci ukl\u00e1d\u00e1n\u00ed lipid\u016f , tedy tuk\u016f a cholesterolu, na omezen\u00ed sr\u00e1\u017elivosti krve v krevn\u00edm syst\u00e9mu a \u017ee je vlivn\u00fdm factorem v l\u00e9\u010den\u00ed rakovin, co\u017e bylo potvrzeno jak ve zkumavce, tak ve zv\u00ed\u0159ec\u00edch a lidsk\u00fdch studi\u00edch. B\u00f3r m\u00e1 schopnost tvo\u0159it mnoho organick\u00fdch slou\u010denin s karbohydr\u00e1ty, vitam\u00edny, enzymy a kysl\u00edkem, co\u017e ho stav\u00ed do pozice velk\u00e9ho vlivu na n\u00e1\u0161 biologick\u00fd syst\u00e9m.<\/p>\n<p>&nbsp;<\/p>\n<p>B\u00f3r se koncentruje p\u0159edev\u0161\u00edm v kostech zdrav\u00fdch lid\u00ed, co\u017e napov\u00edd\u00e1, \u017ee je d\u016fle\u017eit\u00fd ve fyziologii zdrav\u00fdch kost\u00ed. Vypad\u00e1 to, \u017ee b\u00f3r koordinuje na\u0161e hlavn\u00ed \u017eiviny, vitamin D, v\u00e1pn\u00edk, ho\u0159\u010d\u00edk a fosfor. Dostatek boronu zmen\u0161uje probl\u00e9my s nedostatkem t\u011bchto \u017eivin, co\u017e lze vydedukovat z toho, \u017ee omezuje jejich vylu\u010dov\u00e1n\u00ed z t\u011bla mo\u010d\u00ed. Proto je nasnad\u011b, \u017ee dieta bohat\u00e1 na b\u00f3r je d\u016fle\u017eit\u00e1 pro udr\u017een\u00ed t\u011bchto \u017eivin v t\u011ble a nav\u00edc tam, kde je jich zapot\u0159eb\u00ed. B\u00f3r je v t\u011ble v\u0161udyp\u0159\u00edtomn\u00fd a jeho dostatek kladn\u011b ovliv\u0148uje mnoho funkc\u00ed a podporuje anti-oxida\u010dn\u00ed procesy v t\u011ble a imunitu. Studie tak\u00e9 nazna\u010duj\u00ed, \u017ee b\u00f3r modifikuje n\u00e1r\u016fst insulinu a cukru v krvi po poz\u0159en\u00ed j\u00eddla a sni\u017euje projevy auto-imunn\u00edch chorob.&nbsp;&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>B\u00f3r je \u0161iroce zastoupen p\u0159edev\u0161\u00edm v zelenin\u011b, o\u0159ech\u00e1ch a lu\u0161t\u011bnin\u00e1ch. Nejbohat\u0161\u00edmi zdroji jsou su\u0161en\u00e9 ovoce jako jsou hrozinky a k\u0159\u00ed\u017ealy. Je daleko m\u00e9n\u011b zastoupen v masn\u00fdch produktech a v obilnin\u00e1ch.<\/p>\n<p>&nbsp;<\/p>\n<p>B\u00f3r a jeho vliv na zdrav\u00ed nebyl v minulosti moc zkoum\u00e1n a v\u00fdzkum se j\u00edm za\u010dal pon\u011bkud zab\u00fdvat a\u017e kolem roku 1980. Nicm\u00e9n\u011b, velice l\u00e9\u010div\u00e9 vlastnosti b\u00f3ru a jeho slou\u010denin byly historicky vyu\u017e\u00edv\u00e1ny l\u00e9\u010ditely.&nbsp;&nbsp;&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong>N\u011bkolik statistik obsahu boronu<\/strong><\/p>\n<p><strong>&nbsp;[Biological Trace Element Research 66: 87-100, 1998]<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>P\u016fm\u011brn\u00fd obsah vody v oce\u00e1nech = 4.6 mg\/litr.<\/p>\n<p>P\u016fm\u011brn\u00fd obsah m\u011bstsk\u00e9 pitn\u00e9 vody v USA &lt; 1 mg\/ liter).<\/p>\n<p>P\u016fm\u011brn\u00fd obsah m\u011bstsk\u00e9 pitn\u00e9 vody v Kanad\u011b &lt; 2 mg\/ liter.<\/p>\n<p>Maxim\u00e1ln\u00ed obsah m\u011bstsk\u00e9 pitn\u00e9 vody na severu Chile = 15.2 mg\/ liter.<\/p>\n<p>Maxim\u00e1ln\u00ed obsah lok\u00e1ln\u00ed pitn\u00e9 vody v Turecku = 29 mg\/ liter.<\/p>\n<p>Rozsah obsahu lahvovan\u00e9 vody v USA a Evrop\u011b = 0 &#8211; 4.35 mg\/ liter.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Kyselina B\u00f3rov\u00e1 Bezbarv\u00e9 krystalky nebo b\u00edl\u00fd pr\u00e1\u0161ek (H3BO3) rozpustn\u00fd ve vod\u011b. Lze p\u0159ipravit reakc\u00ed boraxu s HCl. Na2B4O7\u00b710H2O + 2 HCl ? 4 B(OH)3 [or H3BO3] + 2 NaCl + 5 H2O. Rozpustnost ve vod\u011b p\u0159i 20 \u00b0C je&nbsp; 4.72 g\/100 ml [Wikipedie]<\/p>\n","protected":false},"author":1,"featured_media":1061,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"_joinchat":[],"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false},"version":2}},"categories":[24],"tags":[],"class_list":["post-1060","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zdravi"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/kamenovo.cz\/wp-content\/uploads\/2018\/02\/images-2.jpg","jetpack_likes_enabled":true,"jetpack-related-posts":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p9pQSB-h6","_links":{"self":[{"href":"https:\/\/kamenovo.cz\/index.php\/wp-json\/wp\/v2\/posts\/1060","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kamenovo.cz\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kamenovo.cz\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kamenovo.cz\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kamenovo.cz\/index.php\/wp-json\/wp\/v2\/comments?post=1060"}],"version-history":[{"count":0,"href":"https:\/\/kamenovo.cz\/index.php\/wp-json\/wp\/v2\/posts\/1060\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kamenovo.cz\/index.php\/wp-json\/wp\/v2\/media\/1061"}],"wp:attachment":[{"href":"https:\/\/kamenovo.cz\/index.php\/wp-json\/wp\/v2\/media?parent=1060"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kamenovo.cz\/index.php\/wp-json\/wp\/v2\/categories?post=1060"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kamenovo.cz\/index.php\/wp-json\/wp\/v2\/tags?post=1060"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}