õǨͺ繡ô-ʢͧ

            öǨͺ繡ô-ʢͧԹ ÷͡ѵԺҧҧ㹻ԡ ¡¹͡¹ŧѵԺҧҧͧ ÷㹡õǨͺ繡ô-ʢͧµҧ ¡ " ԹѺô- (acid-base indicator)"
            Թ (indicator) ÷Ǩͺ͹ (H3O) δ͡䫴͹ (OH) ͧҡ·繡ôդ鹢ͧ͹ҡ·
ôûСͺਹ 㹹Өᵡ͹

δ͡䫴ͧ͹ŷդº 㹹Өᵡδ͡䫴͹

ԹЪԴաõǨͺ繡ô-ʢͧᵡҧ ѹ Թѹҡ 2 дԵٹԹ
1. дԵ Թѡѹ дԵ 2 дԵᴧСдԵչԹ

дԵʵǨͺ¨öṡ 3 ѧ
+ ·ѵ繡ô ¹աдԵʨҡչԹᴧ
+ ·ѵ ¹աдԵʨҡᴧչԹ
+ ·ѵ繡ҧ ӻԡҡѺдԵʷչԹᴧ дԵʨ֧¹
2. ٹԹ Թա ¹ͺء pH ֧鷴ͺҤ pH Թ쪹ԴշẺ繡дẺ

ٻʴдٹԹ

ٻʴ¹բͧдٹԹ

ٹԹẺ¨¹鷴ͺ·դ pH 㹪ǧᵡҧѹ ѧҧ仹
+ չ쿷չ ի觨¹ժ 鷴ͺ繡ô-ʢͧ·դ pH ҧ 8.3-10.0
+ ô ᴧ觨¹ͧ 鷴ͺ繡ô-ʢͧ·դ pH ҧ 4.2-6.2
+ ź ͧ觨¹չԹ 鷴ͺ繡ô-ʢͧ·դ pH ҧ 6.0-7.6
+ չô ͧ觨¹ᴧ 鷴ͺ繡ô-ʢͧ·դ pH ҧ 6.8-8.4

ҧʴǧ¹բͧԹҧԴ

Թ
ǧ pH ¹
շ¹

ù

ô

Ե

ź

չô

չ쿷չ

3.1-4.4

4.2-6.3

5.0-8.0

6.0-7.6

6.8-8.4

8.3-10.0

ᴧ-ͧ

ᴧ-ͧ

ᴧ-Թ

ͧ-Թ

ͧ-ᴧ

-

ä
1) ô
ǧ pH ¹ 4.2-6.3
շ¹ ᴧ-ͧ
¶֧ pH ӡ 4.2 ᴧ
pH ǧ 4.2-6.3
(ռͧᴧѺͧ)
pH ҡ 6.3 ͧ
ػ



2) չ쿷չ
ǧ pH ¹ 8.3- 10.0
շ¹ -
¶֧ pH ӡ 8.3
pH 㹪ǧ 8.3-10.0 ժ͹ (ռѺժ)
pH ҡ 10.0
ժ
ػ



ҧ ҵͧ÷ͺ X ¡չ쿷չ ժ X pH
Թ к͡繪ǧ pH ¹ ѧ X ¹ժ㹿չ쿷չ Щй X ֧դ pH ҡ 10

ͺ


            Թҡҵ øҵԷʡѴҡǹҧ ͧת ö͵Ǩͺ繡ô-ʢͧ

ҧʴǧ¹բͧԹҡҵԺҧԴ

Դͧת 
ǧ pH ¹
շա¹ŧ

ѭѹ

Һ

º

ҹ

ͧ

ҡͧ

1-3

3-4

6-7

6-7

8-9

9-10

10-11

ᴧ-ǧ

-

ᴧ-

-

ᴧ-ǧ


            Թ㹡÷ͺҤ pH ͧ¹鹨зҺ pH »ҳҹ ҵͧ÷Һ pH ԧеͧͧѴ pH ¡ "ͪ (pH meter)" ͧͷöǨѴ pH ͧҹҹԴ͡ѹ Ǩͺ¹ŧ繡ô-ʢͧ Ф pH ҹդ´ҡҡԹ

ٻʴͪ