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색(Color)
백색(Brilliant white)
형상(Morphology)
침상(Acicular)
진비중(Specific gravity)
2.96(2.87~3.09)
굴절율(Refractive index)
1.618~1.632
경도(Moh's hardness)
4.5 ~ 5.0
PH(Aqueous solution)
9.9
용해도(Water solubility)
0.0095g/100㎖
열팽창율
(Coefficient of the thermalexpansion)
6.5 ×10-6 mm/mm/℃
융점(Melting point)
1,540℃
장단경비(Aspect ratio)
1:3 ~ 1:20
 
 

구분
석면대체용
충전재용
도료용
요업용
SiO₂(%)
49.0↑
49.0↑
49.0↑
49.0↑
CaO(%)
45.0↑
45.0↑
43.0↑
44.0↑
Fe₂O₃(%)
0.35↓
0.30↓
0.35↓
0.35↓
Al₂O₃(%)
0.50↓
0.80↓
0.80↓
0.80↓
MgO(%)
1.0↓
1.0↓
1.0↓
1.0↓
L.O.I(%)
2.2% ↓
3.0% ↓
2.5% ↓
2.5% ↓
백색도
84↑
92↑
90↑
88↑
Aspect Ratio
1:15~1:20
1:10~1:25
1:3~1:5
1:3~1:5
Sedimentation(㎖)
70~90
80~150
-
-
Bulk density
0.7↓
0.7↓
-
-
흡유량(㎖/100g)
-
-
20~30
10~20
입도분포
-
-
325#~2,500#
200#~400#