{"id":46600,"date":"2026-07-15T09:03:19","date_gmt":"2026-07-15T00:03:19","guid":{"rendered":"https:\/\/blog.agentsoft.co.kr\/index.php\/2026\/07\/15\/46600\/"},"modified":"2026-07-15T09:03:19","modified_gmt":"2026-07-15T00:03:19","slug":"a-%eb%a0%88%ed%8f%ac%ed%8a%b8-%eb%b6%84%ec%84%9d%ed%99%94%ed%95%99%ec%8b%a4%ed%97%98-9-preparation-of-sodium-thiosulfate-standard-solution-analysis-of-commercial-hypochlorite-by-iodometric-titrati","status":"publish","type":"post","link":"https:\/\/blog.agentsoft.co.kr\/index.php\/2026\/07\/15\/46600\/","title":{"rendered":"[A+ \ub808\ud3ec\ud2b8] \ubd84\uc11d\ud654\ud559\uc2e4\ud5d8 9. Preparation of sodium thiosulfate standard solution-Analysis of commercial hypochlorite by iodometric titration (\uc7a5\uce58\ub3c4 O)"},"content":{"rendered":"

<\/p>\n

\ubaa9\ucc28<\/strong><\/p>\n

1. Principle & object
\n2. Reagents
\n3. Apparatus & Instruments
\n4. Procedure (\uc7a5\uce58\ub3c4, \uae30\uae30 \uc0ac\uc6a9\ubc95 \ud3ec\ud568)
\n5. Result (\ubc18\uc751\uc2dd\uacfc \uacc4\uc0b0\uc2dd \ud3ec\ud568)
\n6. Homework (\uc8fc\uc5b4\uc9c4 \ud654\ud559\ubc18\uc751(\uc2dd 4\uac1c)\uc758 \uc0b0\ud654, \ud658\uc6d0 \ubc18\uc751\uc758 \ubc18\ucabd \ubc18\uc751\uc2dd, \uc54c\uc9dc \ubc18\uc751\uc2dd \ubc0f \uc0b0\ud654\uc218 \uc791\uc131)
\n7. \uace0\ucc30<\/p>\n

\ubcf8\ubb38\ub0b4\uc6a9<\/strong><\/p>\n

4-2. Object
\n\uc0b0\ud654-\ud658\uc6d0 \uc801\uc815\ubc18\uc751\uc744 \uc774\uc6a9\ud574 sodium thiosulfate \ud45c\uc900\uc6a9\uc561\uc744 \uc870\uc81c\ud558\uc5ec \ud45c\uc900\ud654\ud558\uace0, \ud45c\ubc31\ubd84\uc758 \uc720\ud6a8\uc5fc\uc18c\ub7c9\uc744 \uc815\ub7c9\ud558\uc5ec \uad6c\ud55c\ub2e4. \uc694\uc624\ub4dc\ubc95(Iodine method)\uc740 iodimetry(\uc9c1\uc811\uc801\uc815\ubc95)\uacfc iodometry(\uac04\uc811\uc801\uc815\ubc95)\uc774 \uc788\ub2e4.
\n\ud45c\ubc31\ubd84 \uc218\uc6a9\uc561\uc5d0 KI\ub97c \uac00\ud55c \ub4a4 \uc5fc\uc0b0\uc744 \uac00\ud560 \ub54c \ubc1c\uc0dd\ud558\ub294 \uc5fc\uc18c(\uc720\ud6a8\uc5fc\uc18c, available chlorine)\uac00 \uc544\uc774\uc624\ub518\uc744 \uc720\ub9ac\uc2dc\ud0a8\ub2e4. \uc774 \uc720\ub9ac\ub41c \uc544\uc774\uc624\ub518\uc744 sodium thiosulfate \ud45c\uc900\uc6a9\uc561\uc73c\ub85c \uc801\uc815\ud55c\ub2e4. <\/p>\n

i. Reagents
\n\u2460 HCl (36.46 g\/mol, Hydrochloric acid, \uc5fc\uc0b0, d=1.18 g\/cm\u00b3, bp=-85.05\u2103, mp=-114.22\u2103, \ud53c\ubd80\uc5d0 \ub2ff\uc9c0 \uc54a\ub3c4\ub85d \uc8fc\uc758\ud55c\ub2e4.)
\n\u2461 KI (166.0032 g\/mol, Potassium iodide, \uc544\uc774\uc624\ub518\ud654 \ud3ec\ud0c0\uc298, d=3.12 g\/cm\u00b3, bp=1323\u2103, mp=681\u2103, \uc5f4, \uc2a4\ud30c\ud06c, \ud654\uc5fc \ub4f1 \uc810\ud654\uc6d0\uc744 \ud53c\ud558\uace0, \uac00\uc5f0\uc131 \ubb3c\uc9c8 \ubc0f \ud658\uc6d0\uc131 \ubb3c\uc9c8\uc5d0 \uc8fc\uc758\ud574\uc57c \ud55c\ub2e4.)
\n\u2462 H2O (18.01528 g\/mol, Water, \ubb3c, d=1 g\/cm\u00b3 (4\u2103), bp=100\u00b0C, mp=0\u00b0C, \uc0c1\uc628\uc0c1\uc555\uc870\uac74\uc5d0\uc11c \uc548\uc815\ud558\uba70, \uc5f4, \uc624\uc5fc \ubc0f \ubb3c \ubc18\uc751\uc131 \ubb3c\uc9c8\uc744 \ud53c\ud574\uc57c \ud55c\ub2e4.)
\n\u2463 Na2S2O3\u00b75H2O (158.09 g\/mol, Sodium thiosulfate, \uc2f8\uc774\uc624\ud669\uc0b0 \uc18c\ub4d0, d=1.667 g\/cm\u00b3, bp=100\u00b0C, mp=48\u00b0C, \uc5f4, \uc2a4\ud30c\ud06c, \ud654\uc5fc \ub4f1 \uc810\ud654\uc6d0\uc744 \ud53c\ud558\uace0, \uac00\uc5f0\uc131 \ubb3c\uc9c8 \ubc0f \ud658\uc6d0\uc131 \ubb3c\uc9c8\uc5d0 \uc8fc\uc758\ud574\uc57c \ud558\uba70, \uc778\uccb4\uc5d0 \uc790\uadf9\uc744 \uc77c\uc73c\ud0ac \uc218 \uc788\ub2e4.)<\/p>\n

\ucd9c\ucc98 : \ud574\ud53c\ucea0\ud37c\uc2a4<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\ubaa9\ucc28 1. Principle & object 2. Reagents 3. Apparatus & Instruments 4. Procedure (\uc7a5\uce58\ub3c4, \uae30\uae30 \uc0ac\uc6a9\ubc95 \ud3ec\ud568) 5. Result (\ubc18\uc751\uc2dd\uacfc \uacc4\uc0b0\uc2dd \ud3ec\ud568) 6. Homework (\uc8fc\uc5b4\uc9c4 \ud654\ud559\ubc18\uc751(\uc2dd 4\uac1c)\uc758 \uc0b0\ud654, \ud658\uc6d0 \ubc18\uc751\uc758 \ubc18\ucabd \ubc18\uc751\uc2dd, \uc54c\uc9dc \ubc18\uc751\uc2dd \ubc0f \uc0b0\ud654\uc218 \uc791\uc131) 7. \uace0\ucc30 \ubcf8\ubb38\ub0b4\uc6a9 4-2. Object \uc0b0\ud654-\ud658\uc6d0 \uc801\uc815\ubc18\uc751\uc744 \uc774\uc6a9\ud574 sodium thiosulfate \ud45c\uc900\uc6a9\uc561\uc744 \uc870\uc81c\ud558\uc5ec \ud45c\uc900\ud654\ud558\uace0, \ud45c\ubc31\ubd84\uc758 \uc720\ud6a8\uc5fc\uc18c\ub7c9\uc744 \uc815\ub7c9\ud558\uc5ec \uad6c\ud55c\ub2e4. \uc694\uc624\ub4dc\ubc95(Iodine […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[57211,56951,57213,29823,57212],"class_list":["post-46600","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-57211","tag-56951","tag-57213","tag-29823","tag-57212"],"_links":{"self":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts\/46600","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/comments?post=46600"}],"version-history":[{"count":0,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts\/46600\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/media?parent=46600"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/categories?post=46600"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/tags?post=46600"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}