FR-20-500

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FR-20-500

Chemical Name:
Magnesium Hydroxide
Formula:

Mg(OH)2

CAS Number:
1309-42-8
Molecular Weight:
58.3

General & Use:

FR-20-500 is a high purity Magnesium Hydroxide,based on mineral raw material from the dead sea and special production technology. It is a non-halogen flame retardant with low smoke emission.

During the decomposition process no toxic or corrosive gases are generated. In addition, it is an excellent smoke suppressant and acid scavenger. Its high thermal stability (up to 340°C) enables its use in high performance polymeric formulations.

FR-20-500 is used in Polyolefins, Polyamides, PVC and other thermoplastic polymers. Common end applications are wires and cables, injected molded articles for electronics and home appliances.

There are three basic grades denoted as FR-20-500-S5, FR-20-500-S7, and FR-20-500-S10. The S5, S7 and S10 relates to surface areas of 5m²/gr, 7m²/gr and 10m²/gr respectively.

FR-20 is also available in surface-treated grades which are suited for specific applications.

Typical Properties:

Property

Appearance
white free-flowing powder

Assay (Wt.%)
99.5 *

Specific Gravity
2.36

Loss on Drying at 105°C (Wt.%)
0.15

Calcium (as CaO) (Wt.%)
0.08

Silica SiO2 (Wt.%)
0.05

Iron (ppm)
35

Chlorides as Cl- (Wt.%)
0.05

Bulk Density (g/ml)
0.7-0.85

Sulfates as SO4-2 (Wt.%)
0.2

* refers to uncoated material

Particle Size

microns S5 S7 S10
D50 1.8 – 2.2 1.45-1.8 1.1-1.4
D90 3 – 6 2.5-5 2-4

Surface Area

S5 S7  S10 
(BET) m²/gr 4-6 6-8  8.5-11

Thermogravimetric Analysis (10°C/min, air)

Weight Loss (%) °C
2 370
5 385
10 402
Please note that the values indicated do not constitute specification limits. To obtain current specifications, refer to your local Sales Office/Representative or ICL-IP Head Office at address herein.

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