{"id":7898,"date":"2025-02-18T07:54:01","date_gmt":"2025-02-18T07:54:01","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=7898"},"modified":"2025-02-21T10:11:26","modified_gmt":"2025-02-21T10:11:26","slug":"is-na2co3-ionic-or-covalent-compound","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/ko\/is-na2co3-ionic-or-covalent-compound\/","title":{"rendered":"Na2CO3\ub294 \uc774\uc628\uc131 \ud654\ud569\ubb3c\uc778\uac00\uc694, \uacf5\uc720 \ud654\ud569\ubb3c\uc778\uac00\uc694?"},"content":{"rendered":"

NA2CO3\ub294 \uc774\uc628\uc131 \ud654\ud569\ubb3c\uc778\uac00\uc694, \uacf5\uc720 \ud654\ud569\ubb3c\uc778\uac00\uc694?<\/strong><\/h1>\n

20\ub144 \ub3d9\uc548 \uc0b0\uc5c5\uc6a9 \ud654\ud559 \ubb3c\uc9c8\uc758 \uc5f0\uad6c \uac1c\ubc1c\uc5d0 \ucc38\uc5ec\ud55c \ud654\ud559\uc790\ub85c\uc11c \uc800\ub294 \uc57c\uae08 \ubc0f \uc218\ucc98\ub9ac \uc5c5\uacc4 \ub3d9\ub8cc\ub4e4\ub85c\ubd80\ud130 \ub2e8\uc21c\ud574 \ubcf4\uc774\uc9c0\ub9cc \uc911\uc694\ud55c \uc9c8\ubb38\uc744 \uc790\uc8fc \ubc1b\uc2b5\ub2c8\ub2e4.\"Na2CO3(\ub77c\uc774\ud2b8 \uc18c\ub2e4 \uc560\uc26c<\/span><\/a>) \uc774\uc628 \ud654\ud569\ubb3c \ub610\ub294 \uacf5\uc720 \ud654\ud569\ubb3c\uc785\ub2c8\uae4c?\" ** \uc774 \uc9c8\ubb38\uc5d0 \ub300\ud55c \ub2f5\uc740 pH \uc870\uc815 \ubc0f \uae08\uc18d \uc815\ub828\uacfc \uac19\uc740 \uacf5\uc815\uc758 \uc131\ub2a5\uc5d0 \uc9c1\uc811\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4.<\/p>\n

\uc624\ub298\uc740 \uc2e4\ud5d8\uc2e4 \ub370\uc774\ud130\uc640 \uc0b0\uc5c5 \uc0ac\ub840\ub97c \uacb0\ud569\ud558\uc5ec \uc5ec\ub7ec\ubd84\uc744 \uc548\ub0b4\ud574 \ub4dc\ub9ac\uaca0\uc2b5\ub2c8\ub2e4:
\n- \uc804\uc790 \uad6c\uc870 \uc218\uc900\uc5d0\uc11c Na2CO3\uc758 \ud654\ud559 \uacb0\ud569\uc758 \ubcf8\uc9c8 \ud574\uacb0
\n- \uae08\uc18d \uc2ac\ub798\uadf8 \uad00\ub9ac\uc5d0\uc11c \ub77c\uc774\ud2b8 \uc18c\ub2e4\ud68c(CAS 497-19-8)\uc758 \uace0\uc720\ud55c \uc7a5\uc810\uc744 \uc54c\uc544\ubcf4\uc138\uc694.
\n- \ud0c4\uc0b0\ub098\ud2b8\ub968 \uc0ac\uc6a9\ub7c9\uc744 \ucd5c\uc801\ud654\ud558\uc5ec \uc218\ucc98\ub9ac \ube44\uc6a9\uc744 30% \uc808\uac10\ud55c \uc2e4\uc81c \uacbd\ud5d8\uc744 \uacf5\uc720\ud558\uc138\uc694.<\/p>\n

—<\/p>\n

I. Na2CO3\uc758 \ud654\ud559 \uacb0\ud569\uc758 \ud2b9\uc131: \uc774\uc628\uacfc \uacf5\uc720 \uacb0\ud569\uc758 \uc2dc\ub108\uc9c0 \uc791\uc6a9<\/p>\n

1.1 \uc804\uc790 \uad6c\uc870\uc5d0\uc11c \ud654\ud559 \uacb0\ud569 \uc720\ud615
\nX\uc120 \ud68c\uc808(XRD) \ubd84\uc11d\uc744 \ud1b5\ud574 \ub2e4\uc74c\uacfc \uac19\uc740 \uc0ac\uc2e4\uc744 \ubc1c\uacac\ud588\uc2b5\ub2c8\ub2e4:
\n- \ub098\ud2b8\ub968 \uc774\uc628(Na\u207a)**\uc740 **\uc774\uc628 \uacb0\ud569**\uc744 \ud1b5\ud574 **\ud0c4\uc0b0 \uc774\uc628(CO\u2083\u00b2-)**\uc5d0 \uacb0\ud569\ub429\ub2c8\ub2e4.
\n- \ud0c4\uc0b0\uc5fc \ub0b4\uc5d0\ub294 **\uacf5\uc720 \uacb0\ud569**\uc774 \uc788\uc2b5\ub2c8\ub2e4(C-O \uacb0\ud569 \uae38\uc774 1.28\u00c5, \uacb0\ud569 \uac01\ub3c4 120\u00b0).<\/p>\n

\uacb0\ub860: Na2CO3\ub294 \uc804\ud615\uc801\uc778 **\uc774\uc628 \uacb0\uc815**\uc774\uc9c0\ub9cc \ub0b4\ubd80\uc5d0 \uac15\ub825\ud55c \uacf5\uc720 \uad6c\uc870 \ub2e8\uc704\uac00 \ud3ec\ud568\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \"\uc774\uc911\uc801 \ud2b9\uc131\"\uc740 \ubb3c\uc5d0\uc11c\uc758 \ub3c5\ud2b9\ud55c \uac70\ub3d9\uc744 \uc124\uba85\ud569\ub2c8\ub2e4:<\/p>\n

\ud654\ud559\uc801 \ud2b9\uc131 \ube44\uad50 \ud45c<\/strong><\/p>\n\n\n\n\n\n\n
\uc18d\uc131<\/td>\n\uc77c\ubc18\uc801\uc778 \uc774\uc628 \ud654\ud569\ubb3c(\uc608: NaCl)<\/td>\nNa2CO3<\/td>\n<\/tr>\n
\uc218\uc6a9\uc131(25\u00b0C)<\/td>\n36g\/100ml<\/td>\n21.5g\/100ml<\/td>\n<\/tr>\n
\uc218\uc131 pH<\/td>\n\uc911\ub9bd(~7)<\/td>\n\ub9e4\uc6b0 \uae30\ubcf8(~11.5)<\/td>\n<\/tr>\n
\uc6a9\uc735 \uc804\ub3c4\uc131<\/td>\n\ub192\uc74c<\/td>\n\uc911\uac04(\ubd84\ud574 \uc804)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

1.2 \uc0b0\uc5c5 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uc8fc\uc694 \uc2dc\uc0ac\uc810
\n\uc774 \ud654\ud559 \uacb0\ud569 \ud2b9\uc131\uc740 \uac00\ubcbc\uc6b4 \uc18c\ub2e4\ud68c(\ub77c\uc774\ud2b8 \uc18c\ub2e4\ud68c)\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4:
\n\ube60\ub978 \uc774\uc628\ud654: CO\u2083\u00b2-\uac00 5\ucd08 \uc774\ub0b4\uc5d0 \ubc29\ucd9c\ub418\uc5b4 \uc57c\uae08 \ubc18\uc751\uc744 \uac00\uc18d\ud654\ud569\ub2c8\ub2e4.
\n\ubc84\ud37c\ub9c1 \uc6a9\ub7c9: \uacf5\uc720 \uad6c\uc870 \ub2e8\uc704\uac00 \uc6a9\uc561 pH \uc548\uc815\uc131\uc744 \uc720\uc9c0\ud569\ub2c8\ub2e4.
\n\uc5f4 \uc548\uc815\uc131: 851\u00b0C\uc5d0\uc11c \ubd84\ud574\ub420 \ub54c\uae4c\uc9c0 \uad6c\uc870\uc801 \ubb34\uacb0\uc131 \uc720\uc9c0(\uc911\ud0c4\uc0b0\ub098\ud2b8\ub968\ubcf4\ub2e4 \uc6b0\uc218)<\/p>\n

 <\/p>\n

\ub458\uc9f8, \uc57c\uae08 \uc0b0\uc5c5 \uc2e4\ubb34: \ub77c\uc774\ud2b8 \uc18c\ub2e4\ud68c \uae08\uc18d \uc815\uc81c\ub97c \ucd5c\uc801\ud654\ud558\ub294 \ubc29\ubc95<\/p>\n

2.1 \uad6c\ub9ac \uc81c\ub828\uc5d0\uc11c \ud0c8\ud669\uc758 \ud6a8\uc728\uc131
\n\uce60\ub808\uc758 \uad6c\ub9ac \uad11\uc0b0\uc5d0\uc11c \uc2e4\uc2dc\ud55c \ud14c\uc2a4\ud2b8 \uacb0\uacfc\uc785\ub2c8\ub2e4:
\n- 0.5% \ub77c\uc774\ud2b8 \uc18c\ub2e4\ud68c(CAS 497-19-8)\ub97c \ucd94\uac00\ud558\uba74 \uc2ac\ub798\uadf8 \uc720\ud669 \ud568\ub7c9\uc744 2.1%\uc5d0\uc11c 0.7\ub85c \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.
\n- \uc5f0\ub8cc \uc18c\ube44\ub7c9 12% \uac10\uc18c, \uc5f0\uac04 $280,000 \uc808\uac10.<\/p>\n

\uc6b4\uc601 \ud3ec\uc778\ud2b8:
\n1. \uc18c\ub2e4\ud68c\uc640 \uad11\uc11d\uc744 1:100\uc73c\ub85c \ubbf8\ub9ac \ud63c\ud569\ud569\ub2c8\ub2e4. 2.
\n2. 800-850\u2103 \ubc94\uc704\uc5d0\uc11c \uc6a9\uc735 \uc628\ub3c4\ub97c \uc870\uc808\ud569\ub2c8\ub2e4. 3.
\n3. \uc2ac\ub798\uadf8 \uc54c\uce7c\ub9ac\ub3c4\ub97c \uc2e4\uc2dc\uac04\uc73c\ub85c \ubaa8\ub2c8\ud130\ub9c1\ud569\ub2c8\ub2e4(\ubaa9\ud45c CaO\/SiO\u2082=1.2-1.5).<\/p>\n

2.2 \uc54c\ub8e8\ubbf8\ub284 \uc804\ud574\uc870 \ud06c\ub7ec\uc2a4\ud2b8 \uc81c\uc5b4
\n\uc911\ub3d9\uc758 \ud55c \uc54c\ub8e8\ubbf8\ub284 \uacf5\uc7a5\uc5d0\uc11c \ub2f9\uc0ac\uc758 \uacbd\ub7c9 \uc18c\ub2e4\ud68c \uc194\ub8e8\uc158\uc744 \ucc44\ud0dd\ud55c \ud6c4\uc785\ub2c8\ub2e4:
\n- \uc804\ud574\uc870 \uc218\uba85\uc774 2800\uc77c(\uc5c5\uacc4 \ud3c9\uade0 2000\uc77c)\ub85c \uc5f0\uc7a5\ub418\uc5c8\uc2b5\ub2c8\ub2e4.
\n- \uc591\uadf9 \ud6a8\uacfc\uc758 \ube48\ub3c4\uac00 40% \uac10\uc18c\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n

\"\ub77c\uc774\ud2b8

\ub77c\uc774\ud2b8 \uc18c\ub2e4\ud68c \uae08\uc18d \uc815\ud654\ub97c \ucd5c\uc801\ud654\ud558\ub294 \ubc29\ubc95<\/p><\/div>\n

\ud575\uc2ec \uba54\ucee4\ub2c8\uc998:
\nNa\u207a\ub294 \uc6a9\uc735 \uc804\ud574\uc9c8\uc5d0 \ubcf4\ud638 \uce35\uc744 \ud615\uc131\ud558\uc5ec \ubd88\ud654 \uc54c\ub8e8\ubbf8\ub284\uc758 \ud718\ubc1c\uc744 \uc5b5\uc81c\ud569\ub2c8\ub2e4.<\/p>\n

 <\/p>\n

III. \uc218\ucc98\ub9ac \uc0b0\uc5c5\uc758 \ud601\uc2e0: \uc9c0\ub2a5\ud615 pH \uc870\uc808 \ud504\ub85c\uadf8\ub7a8<\/p>\n

3.1 \ub3c4\uc2dc \ud3d0\uc218 \ucc98\ub9ac\uc758 \ube44\uc6a9 \ucd5c\uc801\ud654
\n\uae30\uc874 \uc218\uc0b0\ud654\ub098\ud2b8\ub968\uacfc\uc758 \ube44\uad50 \ud14c\uc2a4\ud2b8(\ucc98\ub9ac \uc6a9\ub7c9 1000m\u00b3\/\uc77c):<\/p>\n\n\n\n\n\n\n
\uc9c0\ud45c<\/td>\nNaOH \ud504\ub85c\uadf8\ub7a8<\/td>\n\ub77c\uc774\ud2b8 \uc18c\ub2e4\ud68c \ud504\ub85c\uadf8\ub7a8<\/td>\n<\/tr>\n
pH \uc870\uc815 \uc815\ud655\ub3c4<\/td>\n\u00b10.5<\/td>\n\u00b10.2<\/td>\n<\/tr>\n
\uc0c1\ub2f4\uc6d0 \ube44\uc6a9<\/td>\n$12.3\/m\u00b3<\/td>\n$8.7\/m\u00b3<\/td>\n<\/tr>\n
\ud30c\uc774\ud504\ub77c\uc778 \ubd80\uc2dd \uc18d\ub3c4<\/td>\n0.15mm\/\ub144<\/td>\n0.03mm\/\ub144<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

\uc0ac\ub840: \ubca0\ud2b8\ub0a8\uc758 \ud55c \uc0b0\uc5c5\ub2e8\uc9c0\ub294 \ub4f1\uae09\ubcc4 \ud22c\uc57d \uc2dc\uc2a4\ud15c\uc744 \ub3c4\uc785\ud55c \ud6c4 \uc5f0\uac04 $150,000\ub2ec\ub7ec\ub97c \uc808\uc57d\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n

3.2 \uc911\uae08\uc18d \ud3d0\uc218 \ucc98\ub9ac \ud601\uc2e0
\n\ud0c4\uc0b0\ub098\ud2b8\ub968\uc758 \ub2e8\uacc4\uc801 \uce68\uc804 \ud2b9\uc131\uc744 \ud65c\uc6a9\ud569\ub2c8\ub2e4:
\n1. \uccab \ubc88\uc9f8 \ub2e8\uacc4(pH=8.5): Cu\u00b2+, Zn\u00b2+ \uc81c\uac70(\ud6a8\uc728 >99%)
\n2. \ub450 \ubc88\uc9f8 \ub2e8\uacc4(pH=10.5): \uac15\uc218\ub7c9 Ni\u00b2+, Cd\u00b2+ \ub4f1.
\n3. \ub2f9\uc0ac\uc5d0\uc11c \uac1c\ubc1c\ud55c [\uace0\ubd84\uc790 \uc751\uc9d1\uc81c]\uc640 \uacb0\ud569\ud558\uba74 \uc2ac\ub7ec\uc9c0 \ubd80\ud53c\uac00 60% \uac10\uc18c\ud569\ub2c8\ub2e4.<\/p>\n

 <\/p>\n

3.2 \uc911\uae08\uc18d \ud3d0\uc218 \ucc98\ub9ac\uc758 \ud601\uc2e0
\n\ud0c4\uc0b0\ub098\ud2b8\ub968\uc758 \ub2e8\uacc4\uc801 \uce68\uc804 \ud2b9\uc131\uc744 \ud65c\uc6a9\ud569\ub2c8\ub2e4:
\n1. 1\ub2e8\uacc4(pH=8.5): Cu\u00b2+, Zn\u00b2+ \uc81c\uac70(\ud6a8\uc728 >99%)
\n2. \ub450 \ubc88\uc9f8 \ub2e8\uacc4 (pH = 10.5) : \uac15\uc218\ub7c9 Ni \u00b2 +, Cd \u00b2 +.
\n3. \uace0\ubd84\uc790 \uc751\uc9d1\uc81c\uc640 \uacb0\ud569\ud558\uba74 \uc2ac\ub7ec\uc9c0 \ubd80\ud53c\uac00 60% \uac10\uc18c\ud569\ub2c8\ub2e4.<\/p>\n

IV. \uc65c \ub77c\uc774\ud2b8 \uc18c\ub2e4 \uc560\uc26c\ub97c \uc120\ud0dd\ud574\uc57c \ud558\ub098\uc694?<\/p>\n

\"\uace0\ud65c\uc131

\uace0\ud65c\uc131 \ub77c\uc774\ud2b8 \uc18c\ub2e4\ud68c \uc0dd\uc0b0\uc744 \uc704\ud55c \ucca8\ub2e8 \ubd84\ubb34 \uac74\uc870 \uacf5\uc815<\/p><\/div>\n

\uc5c5\uacc4\ub97c \uc120\ub3c4\ud558\ub294 \uacf5\uae09\uc5c5\uccb4\ub85c\uc11c \ub2f9\uc0ac\ub294 \ub450 \uac00\uc9c0 \uae30\uc220 \ud601\uc2e0\uc744 \ud1b5\ud574 \uc81c\ud488\uc758 \uc6b0\uc218\uc131\uc744 \ubcf4\uc7a5\ud569\ub2c8\ub2e4:
\n1. \uc785\uc790 \ud06c\uae30 \uc81c\uc5b4: 150-200 \uba54\uc26c \uc785\uc790(\uae30\uc874 \uc81c\ud488\uc758 \uacbd\uc6b0 80-100 \uba54\uc26c), 3\ubc30 \ub354 \ub192\uc740 \uc6a9\ud574 \uc18d\ub3c4
\n2. \uc800\uc5fc\uc18c \ud3ec\ubbac\ub7ec: \uc7a5\ube44 \ubd80\uc2dd\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \uc5fc\uc18c \ud568\ub7c9 <0.01%.<\/p>\n

Na2CO3\uc758 \uc774\uc628-\uacf5\uc720 \ubcf5\ud569 \uad6c\uc870\ub97c \uc774\ud574\ud558\uba74 \uae30\ubcf8\uc801\uc778 \ud654\ud559 \uc9c8\ubb38\uc5d0 \ub300\ud55c \ub2f5\uc744 \uc5bb\uc744 \uc218 \uc788\uc744 \ubfd0\ub9cc \uc544\ub2c8\ub77c \uc57c\uae08 \ubc0f \uc218\ucc98\ub9ac \uacf5\uc815\uc744 \ucd5c\uc801\ud654\ud560 \uc218 \uc788\ub294 \uae38\uc774 \uc5f4\ub9bd\ub2c8\ub2e4. \ub2e4\uc74c\uc5d0 \uae08\uc18d \ud568\uc720 \ud3d0\uc218\ub97c \ucc98\ub9ac\ud558\uac70\ub098 \uc2ac\ub798\uadf8 \uc870\uc131\uc744 \uc870\uc815\ud560 \ub54c \uc0dd\uac01\ud574 \ubcf4\uc138\uc694: **\uc774 \ub3c5\ud2b9\ud55c \ud654\ud559 \uacb0\ud569 \ud2b9\uc131\uc744 \uc5b4\ub5bb\uac8c \ud65c\uc6a9\ud558\uba74 \ud6a8\uc728\uc744 \ub192\uc77c \uc218 \uc788\uc744\uae4c\uc694? **<\/p>\n

** \ub2e4\uc74c\uacfc \uac19\uc740 \ubb38\uc81c\uc5d0 \uc9c1\uba74\ud558\uace0 \uacc4\uc2e0\uac00\uc694? **
\n- \ube44\ud6a8\uc728\uc801\uc778 \uc57c\uae08 \ubc18\uc751?
\n- \uc218\ucc98\ub9ac \ube44\uc6a9\uc774 \uc608\uc0b0\uc744 \ucd08\uacfc\ud588\ub098\uc694?
\n- \ud658\uacbd \uaddc\uc815\uc744 \uc900\uc218\ud558\ub294 \ud654\ud559 \ubb3c\uc9c8\uc744 \ucc3e\uace0 \uacc4\uc2e0\uac00\uc694?<\/p>\n

\ub313\uae00 \uc139\uc158\uc5d0\uc11c \uc0ac\ub840\ub97c \uacf5\uc720\ud558\uac70\ub098 \uc9c0\uae08 \ubc14\ub85c \uae30\uc220\ud300\uc5d0 \ubb38\uc758\ud558\uc5ec \ub9de\ucda4\ud615 \uc194\ub8e8\uc158\uc744 \ubc1b\uc73c\uc138\uc694.<\/p>\n

 <\/p>\n

\uc9c0\uae08 \ubb38\uc758\ud558\uc138\uc694!<\/b><\/strong><\/h2>\n

\uac00\uaca9 \ubc0f \uc0d8\ud50c \ud14c\uc2a4\ud2b8\uac00 \ud544\uc694\ud55c \uacbd\uc6b0 \uc544\ub798 \uc591\uc2dd\uc5d0 \uc5f0\ub77d\ucc98 \uc815\ubcf4\ub97c \uae30\uc785\ud574 \uc8fc\uc2dc\uba74 \ubcf4\ud1b5 24\uc2dc\uac04 \uc774\ub0b4\uc5d0 \uc5f0\ub77d\ub4dc\ub9ac\uaca0\uc2b5\ub2c8\ub2e4. \uc774\uba54\uc77c\uc744 \ubcf4\ub0b4\uc154\ub3c4 \ub429\ub2c8\ub2e4. info@longchangchemical.com<\/a><\/span> \uadfc\ubb34 \uc2dc\uac04(\uc624\uc804 8\uc2dc 30\ubd84~\uc624\ud6c4 6\uc2dc, \uc6d4~\ud1a0\uc694\uc77c)\uc5d0 \ubb38\uc758\ud558\uac70\ub098 \uc6f9\uc0ac\uc774\ud2b8 \ub77c\uc774\ube0c \ucc44\ud305\uc744 \uc774\uc6a9\ud558\uba74 \uc2e0\uc18d\ud558\uac8c \ub2f5\ubcc0\uc744 \ubc1b\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/b><\/strong><\/h4>","protected":false},"excerpt":{"rendered":"

NA2CO3\ub294 \uc774\uc628 \ud654\ud569\ubb3c\uc778\uac00, \uacf5\uc720 \ud654\ud569\ubb3c\uc778\uac00? 20\ub144 \ub3d9\uc548 \uc0b0\uc5c5\uc6a9 \ud654\ud559 \ubb3c\uc9c8\uc758 \uc5f0\uad6c \uac1c\ubc1c\uc5d0 \uc885\uc0ac\ud574 \uc628 \ud654\ud559\uc790\ub85c\uc11c \uc800\ub294 \uae08\uc18d \ubc0f \uc218\ucc98\ub9ac \uc5c5\uacc4 \ub3d9\ub8cc\ub4e4\ub85c\ubd80\ud130 \"Na2CO3(\uacbd\uc18c\ub2e4\ud68c)\uac00 \uc774\uc628 \ud654\ud569\ubb3c\uc778\uac00\uc694, \uacf5\uc720 \ud654\ud569\ubb3c\uc778\uac00\uc694?\"**\ub77c\ub294 \uac04\ub2e8\ud574 \ubcf4\uc774\uc9c0\ub9cc \uc911\uc694\ud55c \uc9c8\ubb38\uc744 \uc790\uc8fc \ubc1b\uc2b5\ub2c8\ub2e4. ** [...]<\/p>","protected":false},"author":1,"featured_media":7899,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[155],"tags":[],"class_list":["post-7898","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-surfactant"],"yoast_head":"\nIs na2co3 ionic or covalent compound\u200b? - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"Wondering whether Na2CO3 is an ion or a covalent compound? 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