G.H. Chemicals Ltd.

St. Hyacinthe PQ Canada

 

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G.H. Chemicals Ltd. manufactures different grades of zinc oxide primarily according to small, medium and large particle size.  We can also:

  • Surface treat zinc oxide to enhance its dispersion ability.

  • Pellitize zinc oxide to increase handling ability and reduce dusting.

  • Custom manufacture zinc oxide according to your specific needs.
  We offer a variety of grades based on specific applications.  (Click here to see the application list)

 
CR-4       CR-40   CR-41  CR4S     CR-4USP   CR-4USP(meets FCC)

 

 

GRADE CR-4 (technical grade)

  Physical Properties
Target
Minimum
Maximum
      tt t t
  Specific Surface Area
(m2/g)
4.5
4.0
5.0
  Mean Particle Size
(um)
0.51
0.46
0.58
  Bulk Density
(lb./ft3)
40
35
45
  Specific Gravity
(--)
5.6
--
--
  Through 325 Mesh
(--)
--
99.98
100
  t t t t
  Chemical Properties
Target
Minimum
Maximum
t Zno Assay
(%)
--
99.8
100
Cadmium Content
( ppm )
--
0
10
Copper Content
( ppm )
--
0
10
Iron content
( ppm )
--
0
10
Lead Content
(ppm)
--
0
20
Heat Loss @ 110 C
(%)
--
0
0.07
Ignition Loss @ 825 C
(%)
--
0
0.2
 

 

GRADE CR-40

  Physical Properties
Target
Minimum
Maximum
t t t tt t t
t Specific Surface Area
(m2/g)
5.0
4.0
6.0
t Mean Particle Size
(um)
0.46
0.38
0.58
t Bulk Density
(lb./ft3)
40
35
45
t Specific Gravity
(--)
5.6
--
--
t Through 325 Mesh
(--)
--
99.98
100
t t t t t
  Chemical Properties
Target
Minimum
Maximum
t Zno Assay
(%)
--
99.7
100
Cadmium Content
( ppm )
--
0
10
Copper Content
( ppm )
--
0
10
Iron content
( ppm )
--
0
10
Lead Content
(ppm)
--
0
20
Heat Loss @ 110 C
(%)
--
0
0.07
Ignition Loss @ 825 C
(%)
--
0
0.2
Propionic acid
(%)
0.15
0.10
0.20
 
 

GRADE CR-41
  Physical Properties
Target
Minimum
Maximum
t t t tt t t
t Specific Surface Area
(m2/g)
6.0
5.0
7.0
t Mean Particle Size
(um)
0.38
0.33
0.46
t Bulk Density
(lb./ft3)
40
35
46
t Specific Gravity
(--)
5.6
--
--
t Through 325 Mesh
(--)
--
99.98
100
t t t t t
  Chemical Properties
Target
Minimum
Maximum
t Zno Assay
(%)
--
99.8
100
Cadmium Content
( ppm )
--
0
10
Copper Content
( ppm )
--
0
10
Iron content
( ppm )
--
0
10
Lead Content
(ppm)
--
0
20
Heat Loss @ 110 C
(%)
--
0
0.07
Ignition Loss @ 825 C
(%)
--
0
0.2
 
 

GRADE CR-4S
  Physical Properties
Target
Minimum
Maximum
t t t tt t t
t Specific Surface Area
(m2/g)
5.0
4.5
5.5
t Mean Particle Size
(um)
0.46
0.42
0.51
t Bulk Density
(lb./ft3)
40
35
45
t Specific Gravity
(--)
5.6
--
--
t Through 325 Mesh
(--)
--
99.98
100
t t t t t
  Chemical Properties
Target
Minimum
Maximum
t Zno Assay
(%)
--
99.8
100
Cadmium Content
( ppm )
--
0
10
Copper Content
( ppm )
--
0
10
Iron content
( ppm )
--
0
10
Lead Content
(ppm)
--
0
20
Heat Loss @ 110 C
(%)
--
0
0.07
Ignition Loss @ 825 C
(%)
--
0
0.2
 
 

GRADE CR-4USP
  Physical Properties
Target
Minimum
Maximum
t t t tt t t
t Specific Surface Area
(m2/g)
4.5
4.0
5.0
t Mean Particle Size
(um)
0.51
0.46
0.58
t Bulk Density
(lb./ft3)
40
35
45
t Specific Gravity
(--)
5.6
-
--
t Through 325 Mesh
(--)
--
99.98
100
t t t t t
  Chemical Properties
Target
Minimum
Maximum
t Zno Assay
(%)
--
99.8
100
Cadmium Content
( ppm )
--
0
10
Copper Content
( ppm )
--
0
10
Iron content
( ppm )
--
0
10
Lead Content
(ppm)
--
0
20
Heat Loss @ 110 C
(%)
--
0
0.07
Ignition Loss @ 825 C
(%)
--
0
0.2
 
           
           

GRADE CR-4USP (Meeting the FCC IV specifications)
  Physical Properties
Target
Minimum
Maximum
t t t tt t t
t Specific Surface Area
(m2/g)
4.5
4.0
5.0
t Mean Particle Size
(um)
0.51
0.46
0.58
t Bulk Density
(lb./ft3)
40
35
45
t Specific Gravity
(--)
5.6
-
--
t Through 325 Mesh
(--)
--
99.98
100
t t t t t
  Chemical Properties
Target
Minimum
Maximum
t Zno Assay
(%)
--
99.8
100
Cadmium Content
( ppm )
--
0
10
Copper Content
( ppm )
--
0
10
Iron content
( ppm )
--
0
10
Lead Content
(ppm)
--
0
10
Heat Loss @ 110 C
(%)
--
0
0.07
Ignition Loss @ 825 C
(%)
--
0
0.2