Pb 3 4 Pb Pb Pb 23 ~ 79 2PbC 3 Pb(H) 2 + 1/2 2 Pb 3 4 + 2C 2 + H 2 8.6 Pb 2 Pb 3 4 + 4NaH Na 4 Pb 4 + 2Pb(H) 2 Pb 3 4 + 4HAc 2Pb(Ac) 2 + 2H 2 + Pb 2 580 2Pb 3 4 6Pb + 2 (1) (Pb 2 Pb 4 ) Pb 2+ Fe 2+ Fe 2 Pb 4 Fe 3+ Fe Pb Fe Fe 4 (Pb 4 ) 3 Fe Pb Fe Pb Fe Pb Fe (2) Pb(H) 2 H 2 2 H 4 Pb 4 Pb 3 4 + H 2 + 2e 3Pb + H - 2Pb + 2H + 2Pb(H) 2 + Pb 2+ Pb(H) 2 + H 2 2 H 4 Pb 4 H 4 Pb 4 + Fe(H) 2 Pb(H) 2 + Fe 2 3 + 3H 2 Pb 3 4 98% Pb(H) 2 Fe 2+
(3) 8 ~ 9 (4) Pb 2+ S 2-4 Cl - C 2-3 PbS 4 PbCl 2 PbC 3 (5) Fe 2 3 Fe(H) 3 1775 1874 Buckman 1962 Buckman Pera Busan 11-M1 Ba(B 2 ) 2H 2 241.0 Ba 57.0% B 9.0% 33.2% H 0.8% 90% (Ba(B 2 ) 2H 2 ) 0.35 ~ 35 µm 8 3 µm 1050 21 0.4% 0.3% ph El-Saawy ph 9.3 ph ph ph 9 El-Saawy
1. 2., ph 3.. 4. 50% 1847 Murdock Clarke 1853 19 1860 1900 1904 1908 Heckel Cushman ( Cr +6 ) ( ZnCr 4 ) 1937 Brizzolara 4Zn K 2 4Cr 3 v3h 2 1944 Tarr Darrin Tubbs 4Zn Cr 3 3H 2 4Zn 4Cr 3 K 2 3H 2 8-1 8-2 ( Cr 3 ) Cr 3 35 ~ 45% 17 5Zn Cr 3 4H 2
8-1 (%) Zn Cr 3 K 2 H 2 4Zn 4Cr 3 K 2 3H 2 37.5 45.2 11.2 5.8 4Zn 1.12Cr 3 0.115K 2 3H 2 64.2 22.1 2.1 11.0 4Zn Cr 3 3H 2 65.2 19.7 12.0 5Zn Cr 3 4H 2 70.28 17.27 12.43 8-2 1 2 3.36 ~ 3.46 3.39 ~ 3.49 3.89 ~ 3.97 (%) 28 31 46 (g Cr 3/L) 1.1 1.1 0.02 LD 50(g/Kg) 0.6 0.5 1.8 Cr 3 (%) 45.78 45.78 17.26 Bakelite 1946 8-3 8-3 Bakelite (%) (%) 7 3.6 1.1 3.2 732 13.2 50 14.7 0.1% ( ) ( PVC) 10 ~ 15% 19 1936 1982 3,000 SrCr 4
96% 3.75 70 ~ 90 g/m 2 43 ~ 47% 600 ~ 650 g/l 300 300, BaK 2 (Cr 4 ) 2 BaCr 4 K 2 Cr 4 IS 2068-1972 Ba 56% Cr 3 36.5% 3.65 1.9 11.6% 300 g/l ( CaCr 4 ) 64.1% 60% Ca 40.08 8-4 8-4 (g/l ) (g/l ) 17 0.02 1.1 ( ) 0.001 0.6 0.0005 Coslctt 1906 1959 Zn 3 (P 4 ) 2 2H 2 404.08 Zn 48.54% P 15.33% 25.63% H 0.50% 4 α β γ 120 250 Zn 3 (P 4 ) 2 nh 2 ( n = 0 2 4 ) 3.0 ~ 3.9 1.2 ~ 1.6 ph 6.5 ~ 8.0 10% 16%
15 ~ 50 g/100 g 1% 0.5 ~ 4 µm BS 5193 Zn 3 (P 4 ) 2 2H 2 50.5 ~ 52% 800 8.5 ~ 10.0% 45.5 ~ 47.6% X BS 5193 Meyer 1963 Me-Zn-P 2 5 -H -CH -H -CH Harrison 1965 1973 PVC PVC 30 ~ 35% 3443 2 100 µm 1000 )
1948 20 50 20 40 Williams Pitrot γ- 2 -PbSi 3 3Pb PhCr 4 Pb 8-5 8-5 I II Pb(%) 46.0 ~ 49.0 42.5 ~ 46.0 Si 2 (%) 45.5 ~ 48.5 47.5 ~ 50.5 Cr 3 (%) 5.1 ~ 5.7 6.3 ~ 7.2 Pb:Cr 3 ( ) 4:1 3:1 Pb:Cr 3 ( ) 8.9:1 6.7:1 8-6 Pb Cr 3 Si 2 Cl S 2-4 Fe 2 8-6 I II I II (g/cm ) 4.1 3.95 (m /cm 3 ) 1.3 3.3 (µm ) 7 4 (kω /cm 2 ) 120 61 (%) 10 ~ 18 13 ~ 19 ph 8.3 ~ 8.6 8.3 ~ 8.6 325 (%) 0.3 0.1 (%) 0.08 0.21
20 50 20 70 1981 K-White 1981 1985 50 3.0 ~ 3.1 ( P 3 5-10 ) Me x Fe y (P 4 ) z AlH 2 P 3 10 2H 2 8-7 8-7 ph 6.5 ± 1 (%) 3 320 (%) 0.5 (%) 1.5 (%) 37 ± 10 20 70 ( ZnMo 4 ) Zn 29% Mo 42.6% 28.4% ( Zn ZnMo 4 ) ( xzn ZnMo 4 ) ( CaMo 4 ) 75% 7:3 xzn yb 2 3 zh 2 20 70 2Zn 3B 2 3 3.5H 2 1926 Zn 2B 2 3 4H 2 Zn B 2 3 H 2 Zinc Borate 2Zn 3B 2 3 3.5H 2 Zn 37.45% B 2 3 48.0% H 2 14.05% FIREBRAKE-ZB ZB-2335 ZB-112 ZB-237 ZB-325 8-8
8-8 (g/100 g) 45 (g/cm 3 ) 2.8 (µm ) 2 ~ 10 1.58 ( ) 980 ZB-2335( ) ZB-325( ( ABS ( ) ( )( ) 25 ~ 70% 1926 CaZn 2 (P 4 ) 2 2H 2 CaHP 4 2H 2 Zn MgHP 4 3H 2 Zn MgHP 4 3H 2 CaHP 4 2H 2 (Fe x Cr y Na z )P 4 xh 2 ( Mg/Ca) ZnMo 4 CaMo 4 Zn ZnHP 3 Nalzin-2 Albright & Wilson Mg 3 (P 4 ) 2 8H 2 MgHP 4 3H 2 CaHP 4 2H 2 CaHP 4 Halox 1. CrP 4 3H 2 CAS 16453-74-0 Cr 27% P 2 3 47% 2.5 65 g/100 g 26% 2. CAS 66905-65-5 8-9 8-9 1# 2# (%) 5.5 ~ 7.7 4.7 ~ 6.9 4 ~ 5 (%) 11.6 ~ 14.9 21.3 ~ 24.5 35 ~ 39 P 2 3 (%) 42.0 ~ 46.0 36.0 ~ 40.0 30 ~ 37 Si 2 (%) 13.0 ~ 17.0 11.0 ~ 15.0 600 (%) 1.0 8 10 ~ 16
3.0 3.1 3.2 (µm ) 0.5 ~ 10 0.5 ~ 10 0.5 ~ 10 (%) < 1.0 < 1.0 0.1 P 2 3 3. 0.5 ~ 2.5% 5-5- 4. Zn ZnHP 3 Zn 2 (H)P 3 CAS 64539-51-1 18 ~ 20 g/100 g 3.96 2 ~ 3 µm 0.01 g/100 cm 3 9700 s/cm 0.04 g/l ( H 3 P 3 ) (Na 3 P 3 (Zn(H) 2 ) (ZnS 4 7H 2 ) 5. Fe 2 P CAS 12751-22-3 142.7 70% 24% 2.5% 3.0% FeP Si 2 6.53 3 ~ 5 µm PbCN 2 CAS 20837-86-9 6.8 22% 83%( CN 2 )16% 20 50 ( ZnCN 2 ) ( ) 100 1000 80 60% 20% 25 4% 950 4% 20 0.88 ph 2 45 CaCN 2 + Pb(N 3 ) 2 PbCN 2 + Ca(N 3 ) 2 ZnCN 2 CAS 20654-08-04 3.1 60% 34% 50 m 2 /g 0.88 ph CaCN 2 + Zn(N 3 ) 2 ZnCN 2 + Ca(N 3 ) 2
Ca 2 Pb 4 5.71 55 ~ 57% ph 11 ~ 12 ph 90% 55% 750 Ca/Si 2 1.8 3 ~ 5 µm 40 ~ 60 g/100 g 5 ~ 10% ph Grace Shieldex AC3 AC5 ( Si-H) ( ) 100 g 650 ml 25 ml 2.45 mol/l ( Ca(N 3 ) 2 ) 2 3 Ca 2+ 120 C ) E ) 8-10 8-10 Si 2 Al 2 3 Ca Mg B 2 3 K 2 Na 2 64.6 4.1 13.4 3.3 4.7 9.6 0.9 54.2 14.8 21.1 0.3 9.0 0.5 0.3 Ba 2 ~ 5 µm 2 ~ 5 µm 0.2 ~ 3 mm