Nepheline Syenite Technical Data Sheet

NEPHELINE SYENITE
TYPICAL PHYSICAL PROPERTIES
Nepheline Syenite is a proven performance enhancer in a broad range of paints, coatings, adhesives, sealants, plastics, and
inks. Excellent brightness, tint retention, and weatherability can be achieved in exterior paints. Improved color, sheen
uniformity, chemical and stain resistance, and durability result when used in interior paint formulations. Nepheline
Syenite is easily dispersed in all conventional vehicle systems, and low oil absorption permits high loading levels. No free
crystalline silica is detectable in the mineral complex.
MINERAL: Anhydrous Sodium Potassium Alumino Silicate (Microcline/Albite/Nepheline)
TYPICAL CHEMICAL ANALYSIS
SILICA (SiO 2 ) * 60.14%
ALUMINUM OXIDE (Al 2 O 3 ) 23.50%
IRON OXIDE (Fe 2 O 3 ) 0.08%
CALCIUM OXIDE (CaO) 0.40%
MAGNESIUM OXIDE (MgO) 0.03%
SODIUM OXIDE (Na 2 O) 10.40%
POTASSIUM OXIDE (K 2 O) 5.00%
LOSS ON IGNITION (L.O.I.) 0.45%
* Free Crystalline Silica Less Than 0.1%
TYPICAL PHYSICAL PROPERTIES
SPECIFIC GRAVITY
2.61 g/cc
BULK DENSITY 83-87 lbs/ft 3
HARDNESS
5.5-6 Mhos
Weight Per Solid Gallon 21.7 lbs. (ASTM D-153)

TYPICAL SCREEN ANALYSIS
(Percent Retained)
U.S. Sieve #16 #20 #35 #50 #2 #3 #4 #7 #10
10 .1
16 20.9
20 45.5 1.5
30 29.0 44.0 .1 .0
40 4.5 51.8 12.4 .2
50 2.7 30.5 24.8
100 43.5 54.0 Trace
140 (106µ) Trace Trace
200 (75µ) 11.5 17.5 .2 .1 Trace
325 (45µ) 4.4 1.5 .1 Trace Trace
20µ 26.2 20.7 8.3 .7 .6
16µ 12.1 9.8 6.4 1.1 .1
10µ 20.6 19.9 22.1 10.1 2.1
5µ 15.2 22.0 28.6 37.6 16.2
Pan 2.0 3.5 21.3 26.0 34.5 50.5 81.0
Hegman Value (ASTMD1210) 4.6 5.8 6.4
Median Particle (Sedigraph) 14.3µ 10.8µ 6.8µ 3.5µ 2.1µ
Surface Area (sq. meter/cc) .4 .6 .7 1.2 1.7
Brightness Tappi 85.9 86.8 88.0 89.2 89.7
Moisture % ASTMC-566 .04 .05 .07 .11 .15
Oil Absorption ASTMD-281 22.5 25.0 26.6 31.0 34.1
pH AFS113-87-S 9.7 9.9 10.1 10.2 10.3