{"id":1526,"date":"2019-08-12T21:24:19","date_gmt":"2019-08-12T12:24:19","guid":{"rendered":"https:\/\/www.rhsystem.kr\/wordpress\/?p=1526"},"modified":"2020-11-10T15:22:49","modified_gmt":"2020-11-10T06:22:49","slug":"ph-%ec%84%bc%ec%84%9c-%ec%9d%b4%ed%95%b4%ed%95%98%ea%b8%b0","status":"publish","type":"post","link":"https:\/\/www.rhsystem.kr\/wordpress\/?p=1526","title":{"rendered":"pH \uc13c\uc11c \uc774\ud574\ud558\uae30"},"content":{"rendered":"\n

pH\uc758 \uc815\uc758<\/h3>\n\n\n\n

\uc218\uc6a9\uc561\uc740 \uc0b0\uc131, \uc54c\uce7c\ub9ac\uc131, \uc911\uc131 \uc815\ub3c4\ub85c \ubd84\ub958\ub420 \uc218 \uc788\ub2e4. \ud654\ud559\uc5d0\uc11c pH\ub77c\ub294 \ub2e8\uc704\ub85c \uce21\uc815\ub420 \uc218 \uc788\ub2e4. \uce7c\uc2a4\ubc84\uadf8 \uc7ac\ub2e8(Carlsberg Foundation)\uc5d0 \ub530\ub974\uba74 pH\ub294 \uc218\uc18c\uc774\uc628 \ub18d\ub3c4(power of hydrogen)\ub97c \ub73b\ud55c\ub2e4. \uc774 \uc218\uce58\ub294 \ub85c\uadf8\uac12\uc774\uba70, \ucd5c\uc18c 1\uc5d0\uc11c \ucd5c\ub300 14\uae4c\uc9c0\uc758 \uac12\uc744 \uac00\uc9c4\ub2e4. pH\ub97c \uc218\uc2dd\uc73c\ub85c \ub098\ud0c0\ub0b4\uba74 pH = \u2013log(H+<\/sup>)\uc640 \uac19\ub2e4. \ub530\ub77c\uc11c \uc218\uc18c\uc774\uc628 \ub18d\ub3c4\uac00 \ub9ac\ud130\ub2f9 1.0 \u00d7 10\u20132<\/sup>\ubab0\uc774\uba74, pH = \u2013log(1.0 \u00d7 10\u20132<\/sup>)\uac00 \ub418\uc5b4\uc11c 2\uac00 \ub41c\ub2e4. \uc99d\ub958\uc218 \uac19\uc740 \uc218\uc6a9\uc561\uc740 pH\uac00 7\uc774\uba70, \uc774\ub294 \uc911\uc131\uc5d0 \ud574\ub2f9\ub41c\ub2e4. pH\uac00 7\ubcf4\ub2e4 \ub0ae\uc740 \uc6a9\uc561\uc740 \uc0b0\uc131, 7\ubcf4\ub2e4 \ub192\uc740 \uc6a9\uc561\uc740 \uc54c\uce7c\ub9ac\uc131\uc744 \ub764\ub2e4. \ub85c\uadf8\uac12\uc740 \uc6a9\uc561\uc758 \uc0b0\uc131 \uc815\ub3c4\ub97c \ud2b9\uc815 \uae30\uc900\uc5d0 \ube44\uad50\ud574 \uc54c\ub824\uc900\ub2e4. \uc608\ub97c\ub4e4\uba74, pH\uac00 5\uc778 \uc6a9\uc561\uc740 pH\uac00 6\uc778 \uc6a9\uc561\ubcf4\ub2e4 \uc0b0\uc131\ub3c4\uac00 10\ubc30 \ub192\uc73c\uba70, pH\uac00 8\uc778 \uc6a9\uc561\ubcf4\ub2e4\ub294 1,000\ubc30 \ub192\ub2e4.<\/p>\n\n\n\n

\npH \uc9c0\uc2dc\uc57d
\uc218\uc6a9\uc561\uc758 pH\ub97c \uce21\uc815\ud558\ub294 \ubc29\ubc95\uc5d0\ub294 \uc5ec\ub7ec\uac00\uc9c0\uac00 \uc788\ub2e4. \uce21\uc815\uc744 \uc704\ud574 \ub9ac\ud2b8\uba38\uc2a4 \uc885\uc774\ub098 \uc720\ub9ac \ud0d0\uce68\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n

\ub9ac\ud2b8\uba38\uc2a4 \uc9c0\uc2dc\uc57d
\n \ub9ac\ud2b8\uba38\uc2a4 \uc9c0\uc2dc\uc57d\uc740 \ubcf4\ud1b5 pH\ub97c \ud45c\uc2dc\ud558\ub294 \uc5ed\ud560\uc744 \ud558\ub294 \uc9c0\uc758\ub958\uc5d0\uc11c \ucd94\ucd9c\ud55c \uc5fc\ub8cc\ub85c \ub9cc\ub4e4\uc5b4\uc9c4\ub2e4. \uc9c0\uc2dc\uc57d\uc774 \uc6a9\uc561\uc5d0 \ub2ff\uc73c\uba74 \ud654\ud559 \ubc18\uc751\uc73c\ub85c \n \uc778\ud574 \ud2b9\uc815 pH \ub18d\ub3c4\ub97c \ub098\ud0c0\ub0b4\ub294 \uc0c9\uc73c\ub85c \ubcc0\ud55c\ub2e4. \ub9ac\ud2b8\uba38\uc2a4 \uc9c0\uc2dc\uc57d\uc740 \uae30\ubcf8\uc801\uc73c\ub85c \ub450 \uac00\uc9c0 \ubc29\uc2dd\uc73c\ub85c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4. \uccab \ubc88\uc9f8\ub294 \uc774\ubbf8\n pH\ub97c \uc54c\uace0 \uc788\ub294 \uae30\uc900 \uc0c9\uacfc \uc644\ucda9\uc561\uc744 \uc0ac\uc6a9\ud574 \ud14c\uc2a4\ud2b8 \uc6a9\uc561\uc5d0 \ucca8\uac00\ud55c \ub9ac\ud2b8\uba38\uc2a4 \uc9c0\uc2dc\uc57d\uc758 \uc0c9\uc744 \uc11c\ub85c \ube44\uad50\ud558\ub294 \uac83\uc774\ub2e4. \ub610 \ub2e4\ub978 \n\ubc29\ubc95\uc740 \uc9c0\uc2dc\uc57d\uc744 \uce68\ud22c\uc2dc\ud0a8 pH \uc2dc\ud5d8\uc9c0\ub97c \uc900\ube44\ud574\uc11c \uc774\ub97c \ud14c\uc2a4\ud2b8 \uc6a9\uc561\uc5d0 \ub2f4\uadfc \ub4a4 \ub098\ud0c0\ub09c \uc0c9\uc744 \uae30\uc900 \uc0c9\uacfc \ube44\uad50\ud558\ub294 \uac83\uc774\ub2e4. \ub450 \uac00\uc9c0 \n\ubaa8\ub450 \uc27d\uac8c \ud574 \ubcfc \uc218 \uc788\ub294 \ubc29\ubc95\uc774\uc9c0\ub9cc, \ud14c\uc2a4\ud2b8 \uc6a9\uc561\uc758 \uc628\ub3c4\ub098 \uc678\ubd80 \ubb3c\uc9c8\uc5d0 \ub530\ub77c \uc624\ucc28\uac00 \ubc1c\uc0dd\ud558\uae30 \uc27d\ub2e4.<\/p>\n\n\n\n

pH \uc720\ub9ac \ud0d0\uce68 <\/h3>\n\n\n\n

pH\ub97c \ud655\uc778\ud558\ub294 \ub370 \uac00\uc7a5 \ud754\ud788 \uc0ac\uc6a9\ub418\ub294 \uac83\uc740 pH \ud0d0\uce68\uc774\ub2e4. \ud0d0\uce68\uc740 \uc804\uadf9\uacfc \uae30\uc900 \uc804\uadf9\uc744 \uce21\uc815\ud558\ub294 \uc720\ub9ac\ub85c \uc774\ub8e8\uc5b4\uc838 \uc788\ub2e4. \ub300\ud45c\uc801\uc73c\ub85c \uc0ac\uc6a9\ub418\ub294 \uc720\ub9ac \ud0d0\uce68\uc740 \uc5fc\ud654\uc218\uc18c(HCl) \uc6a9\uc561\uc744 \uac10\uc2f8\uace0 \uc788\ub294 \uc587\uc740 \uc720\ub9ac\ub9c9\uc73c\ub85c \uc774\ub8e8\uc5b4\uc838 \uc788\ub2e4. \ub9c9 \uc548\uc5d0\ub294 \uc5fc\ud654\uc740(AgCl)\uc73c\ub85c \ub36e\uc778 \uc740 \uc804\uc120\uc774 \ub4e4\uc5b4 \uc788\ub294\ub370, \uc774 \uc804\uc120\uc740 HCl \uc6a9\uc561\uacfc \uc5f0\uacb0\ub418\ub294 \uae30\uc900 \uc804\uadf9 \uc5ed\ud560\uc744 \ud55c\ub2e4. \uc720\ub9ac\ub9c9 \ubc16\uc758 \uc218\uc18c\uc774\uc628\uc740 \uc720\ub9ac\ub9c9\uc744 \ud1b5\uacfc\ud574 \ud655\uc0b0\ub41c \ub4a4 \ub300\ubd80\ubd84\uc758 \uc720\ub9ac\uc5d0 \ubcf4\ud1b5 \ud3ec\ud568\ub418\uc5b4 \uc788\ub294 \ub098\ud2b8\ub968\uc774\uc628(Na+<\/sup>)\uc744 \ub0b4\ubcf4\ub0b4\uace0, \uadf8 \uc790\ub9ac\ub97c \ucc28\uc9c0\ud55c\ub2e4. \uc774\ub7ec\ud55c \uc591\uc774\uc628\uc740 \uac10\uc9c0\uac00 \ud798\ub4e4\uba70, \ub300\ubd80\ubd84\uc774 \ub9c9\uc744 \uae30\uc900\uc73c\ub85c \ub18d\ub3c4\uac00 \ub0ae\uc740 \ucabd\uc758 \uc720\ub9ac \ud45c\uba74\uc5d0 \ud761\ucc29\ub41c\ub2e4. Na+<\/sup>\ub85c\ubd80\ud130 \uc804\ud558\uac00 \uacfc\ud558\uac8c \uc0dd\uae30\uba74 \uc13c\uc11c<\/a>\uc758 \ucd9c\ub825\ubd80\uc5d0 \uc804\uc704(\uc804\uc555)\uc744 \ubc1c\uc0dd\uc2dc\ud0a8\ub2e4.<\/p>\n\n\n\n

\ud0d0\uce68\uc740 \ubc30\ud130\ub9ac\uc640 \uc6d0\ub9ac\uac00 \ube44\uc2b7\ud558\ub2e4. \ud0d0\uce68\uc744 \uc6a9\uc561\uc5d0 \ub123\uc73c\uba74 \uce21\uc815\uc6a9 \uc804\uadf9\uc5d0\uc11c \uc6a9\uc561\uc758 \uc218\uc18c\uc774\uc628 \ud65c\ub3d9\ub3c4(hydrogen activity)\uc5d0 \ub530\ub77c \uc804\uc555\uc774 \uc0dd\uc131\ub418\ub294\ub370, \uc774 \uc804\uc555<\/a>\uacfc \uae30\uc900 \uc804\uadf9\uc758 \uc804\uc704\uc640\uc758 \ube44\uad50\uac00 \uc774\ub8e8\uc5b4\uc9c4\ub2e4. \uc6a9\uc561\uc758 \uc0b0\uc131\ub3c4\uac00 \ub192\uc544\uc9c0\uba74(pH \uac12\uc774 \ub0ae\uc544\uc9c0\uba74) \uc720\ub9ac \uc804\uadf9\uc758 \uc804\uc704\uac00 \uae30\uc900 \uc804\uadf9\ubcf4\ub2e4 \uc591\uc758 \ubc29\ud5a5\uc73c\ub85c \uc99d\uac00(+mV)\ud558\uace0, \uc6a9\uc561\uc758 \uc5fc\uae30\ub3c4\uac00 \uc99d\uac00\ud558\uba74(pH \uac12\uc774 \ub192\uc544\uc9c0\uba74) \uc720\ub9ac \uc804\uadf9\uc758 \uc804\uc704\uac00 \uae30\uc900 \uc804\uadf9\ubcf4\ub2e4 \uc74c\uc758 \ubc29\ud5a5\uc73c\ub85c \uc99d\uac00\ud55c\ub2e4(\u2212mV). \uc774\ub4e4 \ub450 \uc804\uadf9 \uc0ac\uc774\uc758 \uc804\uc704\ucc28\ub97c \uce21\uc815 \uc804\uc704\ub77c\uace0 \ud55c\ub2e4. \uc77c\ubc18\uc801\uc778 pH \ud0d0\uce68\uc740 \uc774\uc0c1\uc801\uc778 \uc870\uac74\uc5d0\uc11c 25\u00b0C\uc77c \ub54c 59.154mV\/pH\ub97c \ubc1c\uc0dd\uc2dc\ud0a8\ub2e4. \uc774\ub294 \ubcf4\ud1b5 \uc544\ub798\uc758 \ub124\ub978\uc2a4\ud2b8\uc2dd(Nernst Equation)\uc73c\ub85c \ub098\ud0c0\ub0bc \uc218 \uc788\ub2e4. <\/p>\n\n\n\n

\"\"\/<\/figure>\n\n\n\n

E = \uc0b0\uc131\ub3c4\ub97c \ubaa8\ub974\ub294 \uc218\uc18c\uc774\uc628\uc758 \uc804\uc555
a = \u00b130mV, \uc601\uc810 \uc624\ucc28
T = 25\u00b0C, \uc8fc\uc704 \uc628\ub3c4
n = 25\u00b0C\uc77c \ub54c 1, \uc6d0\uc790\uac00(\uc774\uc628\uc804\ud558 \uc218)
F = 96485C\/mol, \ud328\ub7ec\ub370\uc774 \uc0c1\uc218
R = 8.314J\/mol?K, \uc544\ubcf4\uac00\ub4dc\ub85c \uc218
pH = \ubaa8\ub974\ub294 \uc6a9\uc561\uc758 \uc218\uc18c\uc774\uc628 \ub18d\ub3c4
pHISO<\/sub> = 7, \uae30\uc900 \uc218\uc18c\uc774\uc628 \ub18d\ub3c4<\/p>\n\n\n\n

\uc774 \uc2dd\uc740 \uc0dd\uc131\ub41c \uc804\uc555\uc758 \ud06c\uae30\uac00 \uc6a9\uc561\uc758 \uc0b0\uc131\ub3c4\ub098 \uc5fc\uae30\ub3c4\uc5d0 \uc88c\uc6b0\ub418\uba70, \uc5ec\uae30\uc5d0 \ud574\ub2f9\ub418\ub294 \uac83 \uc911 \ud558\ub098\uac00 \uc218\uc18c\uc774\uc628\uc758 \ub18d\ub3c4\ub2e4. \uc6a9\uc561\uc758 \uc628\ub3c4\uac00 \ubcc0\ud558\uba74 \uc218\uc18c\uc774\uc628\uc758 \ub18d\ub3c4\ub3c4 \ubcc0\ud55c\ub2e4. \uc6a9\uc561\uc758 \uc628\ub3c4\uac00 \uc62c\ub77c\uac00\uba74 \uc218\uc18c\uc774\uc628\uc774 \ub354 \ube68\ub9ac \uc6c0\uc9c1\uc774\uba70, \uadf8 \uacb0\uacfc \ub450 \uc804\uadf9 \uc0ac\uc774\uc758 \uc704\uc0c1 \ucc28\uac00 \ucee4\uc9c4\ub2e4. \ub610\ud55c, \uc6a9\uc561\uc758 \uc628\ub3c4\uac00 \ub0b4\ub824\uac00\uba74 \uc218\uc18c\uc774\uc628 \ub18d\ub3c4\uac00 \ub0ae\uc544\uc838\uc11c \uc704\uc0c1 \ucc28\uac00 \uac10\uc18c\ud55c\ub2e4. \uc774\uc0c1\uc801\uc778 \uc870\uac74\uc5d0\uc11c \uc804\uadf9\uc740 pH \uac12\uc774 7\uc778 \uc644\ucda9\uc561\uc5d0 \ub2f4\uac14\uc744 \ub54c 0V\uc758 \uc804\uc704\ub97c \uc0dd\uc0b0\ud558\ub3c4\ub85d \uc124\uacc4\ub41c\ub2e4.
\ub2e4\uc74c\uc758 \ud45c\uc5d0\uc11c\ub294 \ub300\ud45c\uc801\uc778 pH \ud0d0\uce68\uc758 \uc0ac\uc591\uc744 \ud655\uc778\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n

\ud45c 1. pH \uc720\ub9ac \ud0d0\uce68\uc758 \uae30\ubcf8\uc801\uc778 \uc0ac\uc591 \n\n<\/p>\n\n\n\n

\uce21\uc815 \ubc94\uc704<\/strong><\/td>pH 0~pH 14<\/strong><\/td><\/tr>
0V\uc5d0\uc11c pH<\/td>pH 7.00 \u00b10.25<\/td><\/tr>
\uc815\ud655\ub3c4<\/td>20\u00b0C~25\u00b0C\uc758 \uc628\ub3c4 \ubc94\uc704\uc5d0\uc11c pH 0.05<\/td><\/tr>
\ud574\uc0c1\ub3c4<\/td>pH 0.010.1mV<\/td><\/tr>
\uc791\ub3d9 \uc628\ub3c4<\/td>\ucd5c\ub300 80\u00b0C<\/td><\/tr>
\ubc18\uc751 \uc2dc\uac04<\/td>\ucd5c\uc885 \uac12\uc758 95%\uc5d0 \ub300\ud574 1\ucd08 \uc774\ud558<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

pH \ud0d0\uce68\uc740 \uc774 \uc5f0\uad6c\uc5d0\uc11c \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud558\ub294\ub370, \ub370\uc774\ud130 \uc2e0\ub8b0\ub3c4\uac00 \uc13c\uc11c\uc758 \uc815\ud655\ub3c4\uc640 \uc548\uc815\uc131\uc5d0 \uc88c\uc6b0\ub418\uae30 \ub54c\ubb38\uc774\ub2e4. pH \ud0d0\uce68\uc744 \uc120\ud0dd\ud560 \ub54c \uace0\ub824\ud574\uc57c \ud560 \uc911\uc694\ud55c \ub450 \uac00\uc9c0 \uc694\uc778\uc740 \uc644\ucda9\uc561\uc5d0\uc11c \uc628\ub3c4 \ubcc0\ud654 \ud6c4\uc758 \uc548\uc815\ud654 \uc2dc\uac04\uacfc pH \ubcc0\ud654 \ud6c4\uc758 \uc548\uc815\ud654 \uc2dc\uac04\uc774\ub2e4. \uadf8 \uc608\ub85c \ub4e4 \uc218 \uc788\ub294 \uac83\uc774 \uc820\uc6e8\uc774(Jenway)\uc758 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \ub178\ud2b8\uc778 \u2018\uc820\uc6e8\uc774 \uc131\ub2a5 pH \uc804\uadf9\uc758 \ud3c9\uac00\u20191<\/sup>\uc5d0\uc11c \uc5bb\uc740 \ub370\uc774\ud130\ub2e4. \ub370\uc774\ud130\uc2dc\ud2b8\uc5d0\uc11c\ub294 \uc8fc\uc5b4\uc9c4 \ud14c\uc2a4\ud2b8 \ud658\uacbd\uc5d0\uc11c \uc628\ub3c4 \ubcc0\ud654 \ud6c4\uc758 \uc548\uc815\ud654\ub97c \ud14c\uc2a4\ud2b8\ud558\uc5ec \uc820\uc6e8\uc774 \ud0d0\uce68\uc758 \uc131\ub2a5\uc744 \ubcf4\uc5ec\uc900\ub2e4. \ud14c\uc2a4\ud2b8\uc5d0\uc11c\ub294 20\u00b0C, pH 7\uc778 \uc6a9\uc561\uacfc 60\u00b0C, pH 4\uc778 \uc644\ucda9\uc561\uc744 \ube44\uad50\ud588\uc73c\uba70, \uac01 \uc804\uadf9\uc740 200rpm\uc758 \uc18d\ub3c4\ub85c \uc813\uace0 \uc788\ub294 pH 7\uc758 \uc644\ucda9\uc561\uc5d0\uc11c \uc548\uc815\ud654\ub418\ub3c4\ub85d \ub450\uc5c8\ub2e4. \uc548\uc815\ud654\ub41c \uc804\uadf9\uc740 \ud0c8\uc5fc\uc218\ub85c \uc53b\uc5b4\ub0b8 \ub4a4 pH 4\uc758 \uc644\ucda9\uc561 \ubd80\ubd84 \ud45c\ubcf8\uc73c\ub85c \uc62e\uaca8 4\ubd84 \uac04 \ub450\uc5c8\ub2e4. \uadf8\ub7f0 \ub2e4\uc74c \uc804\uadf9\uc744 \ub2e4\uc2dc \ud0c8\uc5fc\uc218\ub85c \uc53b\uc5b4\uc11c pH 7 \uc644\ucda9\uc561\uc73c\ub85c \ub2e4\uc2dc \uc62e\uacbc\ub2e4. \uadf8 \ub4a4 10\ucd08\uac04 \uc548\uc815\ub41c \uc0c1\ud0dc\ub85c \uc720\uc9c0\ub420 \ub54c\uae4c\uc9c0 \uac78\ub9ac\ub294 \uc2dc\uac04\uc744 \uce21\uc815\ud5f8\ub2e4. \ud14c\uc2a4\ud2b8\ub294 \uac01 \ud0d0\uce68\ub9c8\ub2e4 \uc138 \ubc88\uc529 \ubc18\ubcf5\ud588\ub2e4.<\/p>\n\n\n\n

\ud45c 2. \uc644\ucda9\uc561 \uc628\ub3c4\ub97c \ubc14\uafb8\uc5c8\uc744 \ub54c\uc758 \uc548\uc815\ud654 \uc2dc\uac04 <\/p>\n\n\n\n

\ubc94\uc6a9 pH \ud0d0\uce68<\/strong><\/td>\uc820\uc6e8\uc774(35xx \uc2dc\ub9ac\uc988 pH \ud0d0\uce68) <\/strong><\/td><\/tr>
1<\/td>77<\/td>36<\/td><\/tr>
2<\/td>77<\/td>33<\/td><\/tr>
3<\/td>49<\/td>34<\/td><\/tr>
\ud3c9\uade0<\/td>67.6667<\/td>34.3333<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\ud45c 3. \uc644\ucda9\uc561 pH\ub97c \ubc14\uafb8\uc5c8\uc744 \ub54c\uc758 \uc548\uc815\ud654 \uc2dc\uac04 <\/p>\n\n\n\n

\ubc94\uc6a9 pH \ud0d0\uce68<\/strong><\/td>\uc820\uc6e8\uc774(35xx \uc2dc\ub9ac\uc988 pH \ud0d0\uce68) <\/strong><\/td><\/tr>
1<\/td>29<\/td>21<\/td><\/tr>
2<\/td>31<\/td>26<\/td><\/tr>
3<\/td>38<\/td>21<\/td><\/tr>
\ud3c9\uade0<\/td>32.6667<\/td>22.6667<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\uc820\uc6e8\uc774\uc758 \uc131\ub2a5\uc740 \ubc94\uc6a9 pH \ud0d0\uce68\uacfc \ube44\uad50\ud588\uc744 \ub54c \uc704\uc5d0\uc11c \ub9d0\ud55c \uc870\uac74\uc5d0\uc11c \ubc18\uc751 \uc2dc\uac04\uc774 50% \ub354 \ube68\ub790\ub2e4. \uc774\uc640 \uac19\uc740 \uae30\uae30\ub97c \uc0ac\uc6a9\ud558\uba74 \ub192\uc740 \uc0d8\ud50c \ucc98\ub9ac\uc728 \ub355\ubd84\uc5d0 \ub370\uc774\ud130 \ubd84\uc11d\uc5d0 \ud544\uc694\ud55c \uc2dc\uac04\uc744 \ud06c\uac8c \uc904\uc77c \uc218 \uc788\ub2e4\ub294 \uc7a5\uc810\uc774 \uc788\ub2e4.<\/p>\n\n\n\n

\uc13c\uc11c \uc544\ub0a0\ub85c\uadf8 \uc2e0\ud638 \uc870\uc815 \ud68c\ub85c <\/h3>\n\n\n\n

\uc801\uc808\ud55c \uc2e0\ud638 \uc870\uc815 \ud68c\ub85c\ub97c \ub9cc\ub4e4\uae30 \uc704\ud574\uc11c\ub294 \uc13c\uc11c\uc758 \ub4f1\uac00 \uc804\uae30 \ub2e4\uc774\uc5b4\uadf8\ub7a8\uc744 \uc774\ud574\ud558\ub294 \uac83\uc774 \uc911\uc694\ud558\ub2e4. \uc55e\uc5d0\uc11c \uc124\uba85\ud588\ub4ef\uc774, pH \ud0d0\uce68\uc740 \ucd5c\uc18c 1M\u03a9\uc5d0\uc11c \ucd5c\ub300 1G\u03a9\uc5d0 \uc774\ub97c \uc218 \uc788\ub294 \ub192\uc740 \uc800\ud56d\uc744 \uc0dd\uc131\ud558\ub294 \uc720\ub9ac\ub85c \uc774\ub8e8\uc5b4\uc838 \uc788\uc73c\uba70, \uadf8\ub9bc 1\uacfc \uac19\uc774 pH \uc804\uc6d0\uacfc \uc9c1\ub82c\ub85c \uc5f0\uacb0\ub418\uc5b4 \uc788\uc744 \ub54c \uc800\ud56d\uc758 \uc5ed\ud560\uc744 \ud55c\ub2e4.<\/p>\n\n\n\n

\"\"\/
\uadf8\ub9bc 1. pH \ud0d0\uce68\uc758 \ub4f1\uac00 \uc804\uae30 \ud68c\ub85c \uad6c\uc131<\/figcaption><\/figure>\n\n\n\n

\ud68c\ub85c(\ud2b9\ud788 \uce21\uc815 \uc804\uadf9\uc758 \uc720\ub9ac\ub9c9)\uc5d0 \uc0ac\uc6a9\ub41c \uac01 \ubd80\ud488\uc758 \ub192\uc740 \uc800\ud56d\uc744 \ud1b5\uacfc\ud558\ub294 \ud68c\ub85c\uc758 \uc804\ub958\ub294 \uadf8 \ud06c\uae30\uac00 \uc544\ubb34\ub9ac \uc791\ub2e4\uace0 \ud574\ub3c4 \uc800\ud56d\uc5d0 \uc0c1\ub300\uc801\uc73c\ub85c \ub192\uc740 \uc804\uc555 \uac15\ud558\ub97c \ubc1c\uc0dd\uc2dc\ucf1c, \uacc4\uce21\uae30\uc5d0\uc11c \uce21\uc815\ub418\ub294 \uc804\uc555\uc758 \ud06c\uae30\ub97c \ud06c\uac8c \uc904\uc778\ub2e4. \uc124\uc0c1\uac00\uc0c1\uc73c\ub85c \uce21\uc815 \uc804\uc555\uc5d0 \uc758\ud574 \ubc1c\uc0dd\ud55c \uc804\uc555\ucc28\uac00 \ubc00\ub9ac\ubcfc\ud2b8(mV) \uc218\uc900\uc73c\ub85c \uc544\uc8fc \uc791\ub2e4(\uc774\uc0c1\uc801\uc778 \uc870\uac74\uc77c \uacbd\uc6b0 \uc2e4\uc628\uc5d0\uc11c pH \ub2e8\uc704\ub2f9 59.16mV). \uc774\ub7f0 \uc791\uc5c5\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uacc4\uce21\uae30\ub294 \uac10\ub3c4\uac00 \uc544\uc8fc \ub6f0\uc5b4\ub098\uace0 \uc785\ub825 \uc800\ud56d\uc774 \ub9e4\uc6b0 \ub192\uc544\uc57c \ud55c\ub2e4.<\/p>\n\n\n\n

\uc544\ub0a0\ub85c\uadf8-\ub514\uc9c0\ud138 \ubcc0\ud658 <\/h3>\n\n\n\n

\uc774\ub7ec\ud55c \uc720\ud615\uc758 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uacbd\uc6b0 \uc13c\uc11c\uc758 \ubc18\uc751 \uc2dc\uac04\uc744 \uace0\ub824\ud558\uba74 \ub370\uc774\ud130 \uc218\uc9d1\uc744 \uc704\ud55c \uc0d8\ud50c\ub9c1\uc728\uc774 \ubb38\uc81c\uac00 \ub41c\ub2e4. \uc8fc\uc5b4\uc9c4 \uc13c\uc11c\uc758 \ud574\uc0c1\ub3c4\uac00 0.001V rms\uc774\uace0 ADC \ud480\uc2a4\ucf00\uc77c \uc804\uc555 \ubc94\uc704\uac00 1V\ub77c\uace0 \ud560 \ub54c, \ud6a8\uacfc\uc801\uc778 9.96 \ube44\ud2b8\uc758 \ud574\uc0c1\ub3c4\ub97c \uc5bb\uae30 \uc704\ud574 \uace0\ud574\uc0c1\ub3c4 ADC\ub97c \uc0ac\uc6a9\ud560 \ud544\uc694\ub294 \uc5c6\ub2e4. \uc7a1\uc74c \uc5c6\ub294 \ud574\uc0c1\ub3c4\ub294 \ube44\ud2b8\uc758 \ub2e8\uc704\ub85c \uc815\uc758\ub41c\ub2e4. \ubb34\uc7a1\uc74c \ud574\uc0c1\ub3c4 = log2 [\ud480\uc2a4\ucf00\uc77c \uc785\ub825 \uc804\uc555 \ubc94\uc704\/\uc13c\uc11c\uc758 \ud53c\ud06c\uac04 \uc804\uc555 \ucd9c\ub825 \uc7a1\uc74c]. ADC\uc758 \uc0d8\ud50c\ub9c1\ub960\uc740 \uc804\ub825 \uc18c\ube44\uc640 \uc9c1\uacb0\ub418\uc5b4 \uc788\uae30 \ub54c\ubb38\uc5d0 \uc800\uc804\ub825 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0\uc11c\ub294 \uc911\uc694\ud55c \uc694\uc778\uc774 \ub420 \uc218 \uc788\ub2e4. \ub530\ub77c\uc11c \uc13c\uc11c\uc758 \ubc18\uc751 \uc2dc\uac04\uc744 \uace0\ub824\ud588\uc744 \ub54c, \uc77c\ubc18\uc801\uc778 ADC \uc0d8\ud50c\ub9c1\ub960\uc740 \ucd5c\uc18c \ucc98\ub9ac\uc728\ub85c \uc124\uc815\ub420 \uc218 \uc788\ub2e4. \ubd80\ud488 \uc218\ub97c \uc904\uc774\uae30 \uc704\ud574\uc11c\ub294 ADC\uac00 \ud1b5\ud569\ub41c \ub9c8\uc774\ud06c\ub85c\ucee8\ud2b8\ub864\ub7ec\ub97c \uc0ac\uc6a9\ud560 \uc218\ub3c4 \uc788\ub2e4. <\/p>\n","protected":false},"excerpt":{"rendered":"

pH\uc758 \uc815\uc758 \uc218\uc6a9\uc561\uc740 \uc0b0\uc131, \uc54c\uce7c\ub9ac\uc131, \uc911\uc131 \uc815\ub3c4\ub85c \ubd84\ub958\ub420 \uc218 \uc788\ub2e4. \ud654\ud559\uc5d0\uc11c pH\ub77c\ub294 \ub2e8\uc704\ub85c \uce21\uc815\ub420 \uc218 \uc788\ub2e4. \uce7c\uc2a4\ubc84\uadf8 \uc7ac\ub2e8(Carlsberg Foundation)\uc5d0 \ub530\ub974\uba74 pH\ub294 \uc218\uc18c\uc774\uc628 \ub18d\ub3c4(power of hydrogen)\ub97c \ub73b\ud55c\ub2e4. \uc774 \uc218\uce58\ub294 \ub85c\uadf8\uac12\uc774\uba70, \ucd5c\uc18c 1\uc5d0\uc11c \ucd5c\ub300 14\uae4c\uc9c0\uc758 \uac12\uc744 \uac00\uc9c4\ub2e4. pH\ub97c \uc218\uc2dd\uc73c\ub85c \ub098\ud0c0\ub0b4\uba74 pH = \u2013log(H+)\uc640 \uac19\ub2e4. \ub530\ub77c\uc11c \uc218\uc18c\uc774\uc628 \ub18d\ub3c4\uac00 \ub9ac\ud130\ub2f9 1.0 \u00d7 10\u20132\ubab0\uc774\uba74, pHRead More →<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":1275,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[34,35,38,37],"class_list":["entry","author-rhsystem","post-1526","post","type-post","status-publish","format-standard","has-post-thumbnail","category-tiptech","tag-ph","tag-sensor","tag-38","tag-37"],"_links":{"self":[{"href":"https:\/\/www.rhsystem.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1526","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rhsystem.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.rhsystem.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.rhsystem.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.rhsystem.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1526"}],"version-history":[{"count":4,"href":"https:\/\/www.rhsystem.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1526\/revisions"}],"predecessor-version":[{"id":1695,"href":"https:\/\/www.rhsystem.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1526\/revisions\/1695"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.rhsystem.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/media\/1275"}],"wp:attachment":[{"href":"https:\/\/www.rhsystem.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1526"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.rhsystem.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1526"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rhsystem.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1526"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}