KS M 8117-2012 Sodium thiocyanate《硫氰酸钠(试剂)》.pdf

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1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS M 8117 ( )KS M 8117:2012 2012 12 28 http:/www.kats.go.krKS M 8117:2012 : ( ) ( ) ( ) : (http:/www.standard.go.kr) : :1976 12 9 :2012 12 28 2012-0817 : : ( 02-509-7270) (http:/www.kats.go.kr). 10 5 , . KS M 8117:2012 ( ) Sodium thiocyanate NaSCN FW: 81.07

2、1 ( .) . 2 . . ( ) . KS M 0009, KS M 8001, 3 3.1 . , . 3.2 a) 2 g 20 mL (A ). A 10 mL ( ) (100 g/L) 1 mL . b) A KS M 8001 6.29( ) a)( ) . 4 5. 1 . KS M 8117:2012 2 1 ( ) 99.0 % (105 C) 2.0 % pH(50 g/L, 25 C) 5.3 8.5 (Cl) 0.01 % (SO4) 0.005 (Cu) 3 mg/kg (Fe) 1 mg/kg (NH4) 0.005 % (S ) 0.008 % 5 5.1 (

3、 ) a) 5.4 0.1 g 0.1 mg 50 mL (1:2) 5 mL 0.1 mol/L 25 mL , 0.1 mol/L (a mL). ( ) . ( b mL). b) 100)(107008.0=SfabA A : (%) S : (g) f : 0.1 mol/L 0.008 107 : 0.1 mol/L 1 mL NaSCN (g) 5.2 2 g 20 mL . 5.3 2 g (95) 25 mL . 5.4 (105 C) KS M 0009 5.1.4 a)( 1: ) . 0.1 mg 1 g 4 , 20 mg ( 5.1 ). KS M 8117:201

4、2 3 5.5 pH(50 g/L, 25 ) a) 5.0 g 100 mL . b) KS M 8001 5.5( ) . 5.6 (Cl) a) 0.2 g (300 mL) 15 mL . b) (0.01 mg/mL) 2.0 mL (300 mL) 15 mL . c) , 1 g (300 g/L) 3 mL 40 C . “ 2.5 mL 40 C (2 ).” 5 mL 30 15 mL (1:2) 10 mL 30 mL . (20 g/L) 1 mL 15 . 5.7 (SO4) a) 1.0 g 10 mL (2:1) 0.3 mL 25 mL . b) (2:1) 0

5、.3 mL (0.01 mg/mL) 5.0 mL 25 mL . c) KS M 8001 6.15 a)( ) . 5.8 (Cu) a) 10 g 20 mL (1:3) 0.3 mL 25 mL . b) 10 g 20 mL, (1:3) 10 mL, (0.01 mg/mL) 3.0 mL, (0.01 mg/mL) 1.0 mL 80 mL . c) (1:3) 10 mL (1:3) 10 mL . d) KS M 8001 6.31( ) b)( ) 4)( ) . 324.7 nm( X , Y Z 5.9 .) 5.9 (Fe) a) 5.8 X . b) 5.8 Y .

6、 KS M 8117:2012 4 c) 5.8 Z . d) KS M 8001 6.31 b) 4) 4.3) . 248.3 nm 5.10 (NH4) a) 2.0 g 140 mL . b) (0.01 mg/mL) 10 mL 140 mL . c) KS M 8001 6.11 f)( - ) . 5.11 (S ) 20 mL (1:15) 1 mL 2.0 g 0.5 g, 0.5 mL, 0.05 mol/L 0.10 mL . 0.05 mol/L 1 mL 0.001 603 3 g S . 6 . 7 . a) “ ” “ ” b) c) , d) ( ) e) f) g) h) () 153787 1 92 3(16) (02)26240114 (02)262401489 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS M 8117:2012 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Sodium thiocyanate ICS 71.040.30

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