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Barium Titanate Solid Glass Microspheres and Spheres
Barium Titanate Solid Glass Microspheres and Spheres
  • Barium Titanate Solid Glass Microspheres and Spheres
  • Bulk Grades of Bartium Titanate Glass Spheres (30-100um and 300-1000um)
  • Retroreflective Barium Titanate Glass Spheres - 37-45um

Barium Titanate Solid Glass Microspheres 4.1-4.4g/cc - 5um to 1000um (1mm)

Product Line: BTGMS

Barium Titanate solid glass microspheres are available in a large variety of particle size ranges starting at 5um to 1000um (1mm). Microspheres are supplied as a yellowish dry powder. Classified grades have narrower particle size ranges (e.g. 27-32um). Bulk grades have wider size ranges and are more economical (e.g. 300-1000um). Each product description below indicates density and refractive index.

Barium Titanate glass spheres offer a higher Refractive Index (n) than most other glass formulations. Depending on the grade of material, reflecting index of Barium Titanate glass is between 1.9 to 2.2 compared to n=~1.5 of Soda Lime and Borosilicate glasses. Barium Titanate glass microspheres will reflect back more light directly to the viewer, which is beneficial for applications where retroreflectivity is desired, such as motion tracking targets in medical devices, endoscopy, micro-optics, defense and microscopy.

Please note that this material is a unique optical glass formulation based on a large percentage of Barium Oxide (BaO) and Titanium Oxide (TiO2). Barium Titanate glass does not have the dielectric properties of Barium Titanate powder.

You might be interested in half-coated with Aluminum Barium Titanate glass: Retroreflective Aluminum Coated Solid Glass Microspheres 4.5g/cc 30-100um - Optional Coatings

Particles in Size Range: > 90%
Spherical Particles: >85%
Density (d): 4.07-4.38g/cc, specified in product description
Index of Refraction (n)*: 1.9, 1.93 or 2.2, specified in product description
* index of refraction (nD) is measured at the wavelength of the yellow sodium D line (a doublet 589.0-589.6 nm)

Select Particle Size and Density:
Item # Description/Size Status Price Qty
BTGMS-4.15 5-22um - 0.1g
Barium Titanate Solid Glass Microspheres n~1.9 d=4.15g/cc 5-22um - 0.1g
 In Stock $334.87
BTGMS-ND2.2-4.35 5-22um - 5g
Barium Titanate Solid Glass Microspheres n~2.2 d=4.35g/cc 5-22um - 5g
 In Stock $334.87
BTGMS-4.24 10-35um - 5g
Barium Titanate Solid Glass Microspheres n~1.9 d=4.24g/cc 10-35um - 5g
 In Stock $334.87
BTGMS-ND2.2-4.35 20-27um -5g
Barium Titanate Solid Glass Microspheres n~2.2 d=4.35g/cc 20-27um - 5g
 In Stock $334.87
BTGMS-4.21 22-27um - 0.5g
Barium Titanate Solid Glass Microspheres n~1.9 d=4.21g/cc 22-27um - 0.5g
 In Stock $334.87
BTGMS-4.23 27-32um - 1g
Barium Titanate Solid Glass Microspheres n~1.9 d=4.23g/cc 27-32um - 1g
 In Stock $303.11
BTGMS-ND2.2-4.35 27-35um - 5g
Barium Titanate Solid Glass Microspheres n~2.2 d=4.35g/cc 27-35um - 5g
 In Stock $250.19
BTGMS-4.21 27-35um - 1g
Barium Titanate Solid Glass Microspheres n~1.9 d=4.21g/cc 27-35um - 1g
 In Stock $262.70
BTGMS-4.25 30-100um - 25g
Barium Titanate Solid Glass Microspheres n~1.9 d=4.25g/cc 30-100um - 25g
 In Stock $133.37
BTGMS-4.25 30-100um - 1kg
Barium Titanate Solid Glass Microspheres n~1.9 d=4.25g/cc 30-100um - 1kg
 In Stock $212.85
BTGMS-4.25 32-38um - 1g
Barium Titanate Solid Glass Microspheres n~1.9 d=4.25g/cc 32-38um - 1g
 In Stock $262.70
BTGMS-ND2.2-4.35 35-41um - 1g
Barium Titanate Solid Glass Microspheres n~2.2 d=4.35g/cc 35-41um - 1g
 In Stock $262.70
BTGMS-ND2.2-4.36 35-41um - 1g
Barium Titanate Solid Glass Microspheres n~2.2 d=4.36g/cc 35-41um - 1g
 In Stock $262.70
BTGMS-4.25 38-45um - 1g
Barium Titanate Solid Glass Microspheres n~1.9 d=4.25g/cc 38-45um - 1g
 In Stock $227.67
BTGMS-ND2.2-4.36 41-48um - 5g
Barium Titanate Solid Glass Microspheres n~2.2 d=4.36g/cc 41-48um - 5g
 In Stock $227.67
BTGMS-4.24 45-53um - 5g
Barium Titanate Solid Glass Microspheres n~1.9 d=4.24g/cc 45-53um - 5g
 In Stock $186.04
BTGMS-ND2.2-4.36 48-56um - 5g
Barium Titanate Solid Glass Microspheres n~2.2 d=4.36g/cc 48-56um - 5g
 In Stock $186.04
BTGMS-ND2.2-4.38 48-56um - 5g
Barium Titanate Solid Glass Microspheres n~2.2 d=4.38g/cc 48-56um - 5g
 In Stock $186.04
BTGMS-4.24 53-63um - 10g
Barium Titanate Solid Glass Microspheres n~1.9 d=4.24g/cc 53-63um - 10g
 In Stock $133.37
BTGMS-ND2.2-4.38 56-66um - 10g
Barium Titanate Solid Glass Microspheres n~2.2 d=4.38g/cc 56-66um - 10g
 In Stock $133.37
BTGMS-HI-4.15 60-65um - 10g
Barium Titanate Solid Glass Microspheres n~1.93 d=4.15g/cc 60-65um - 10g
 In Stock $248.26
BTGMS-HI-4.15 60-75um - 25g
Barium Titanate Solid Glass Microspheres n~1.93 d=4.15g/cc 60-75um - 25g
 In Stock $288.68
BTGMS-HI-4.15 60-75um - 1kg
Barium Titanate Solid Glass Microspheres n~1.93 d=4.15g/cc 60-75um - 1kg
 In Stock $1,148.30
BTGMS-4.25 63-75um - 10g
Barium Titanate Solid Glass Microspheres n~1.9 d=4.25g/cc 63-75um - 10g
 In Stock $133.37
BTGMS-4.22 63-75um - 10g
Barium Titanate Solid Glass Microspheres n~1.9 d=4.22g/cc 63-75um - 10g
 In Stock $133.37
BTGMS-HI-4.16 63-75um - 10g
Barium Titanate Solid Glass Microspheres n~1.93 d=4.16g/cc 63-75um - 10g
 In Stock $168.40
BTGMS-ND2.2-4.38 66-78um - 10g
Barium Titanate Solid Glass Microspheres n~2.2 d=4.38g/cc 66-78um - 10g
 In Stock $133.37
BTGMS-HI-4.15 70-90um - 25g
Barium Titanate Solid Glass Microspheres n~1.93 d=4.20g/cc 70-90um - 25g
 In Stock $250.19
BTGMS-HI-4.15 70-90um - 1kg
Barium Titanate Solid Glass Microspheres n~1.93 d=4.20g/cc 70-90um - 1kg
 In Stock $891.69
BTGMS-4.21 75-90um - 10g
Barium Titanate Solid Glass Microspheres n~1.9 d=4.21g/cc 75-90um - 10g
 In Stock $155.24
BTGMS-4.27 75-90um - 10g
Barium Titanate Solid Glass Microspheres n~1.9 d=4.27g/cc 75-90um - 10g
 In Stock $155.24
BTGMS-HI-4.20 75-80um - 10g
Barium Titanate Solid Glass Microspheres n~1.93 d=4.20g/cc 75-80um - 10g
 In Stock $248.26
BTGMS-HI-4.20 75-90um - 10g
Barium Titanate Solid Glass Microspheres n~1.93 d=4.20g/cc 75-90um - 10g
 In Stock $168.40
BTGMS-ND2.2-4.38 78-85um - 1g
Barium Titanate Solid Glass Microspheres n~2.2 d=4.38g/cc 78-85um - 1g
 In Stock $155.24
BTGMS-4.21 90-106um - 1g
Barium Titanate Solid Glass Microspheres n~1.9 d=4.21g/cc 90-106um - 1g
 In Stock $168.40
BTGMS-HI-4.15 125-190um - 1kg
Barium Titanate Solid Glass Microspheres n~1.93 d=4.20g/cc 125-190um - 1kg
 In Stock $763.39
BTGMS-HI-4.20 140-150um - 10g
Barium Titanate Solid Glass Microspheres n~1.93 d=4.20g/cc 140-150um - 10g
 In Stock $248.26
BTGMS-HI-4.20 150-180um - 10g
Barium Titanate Solid Glass Microspheres n~1.93 d=4.20g/cc 150-180um - 10g
 In Stock $168.40
BTGMS-HI-4.20 180-190um - 10g
Barium Titanate Solid Glass Microspheres n~1.93 d=4.20g/cc 180-190um - 10g
 In Stock $248.26
BTGMS-HI-4.18 180-212um - 10g
Barium Titanate Solid Glass Microspheres n~1.93 d=4.18g/cc 180-212um - 10g
 In Stock $168.40
BTGMS-HI-4.15 180-265um - 1kg
Barium Titanate Solid Glass Microspheres n~1.93 d=4.18g/cc 180-265um - 1kg
 In Stock $288.68
BTGMS-HI-4.18 212-250um - 10g
Barium Titanate Solid Glass Microspheres n~1.93 d=4.18g/cc 212-250um - 10g
 In Stock $168.40
BTGMS-HI-4.18 250-265um - 10g
Barium Titanate Solid Glass Microspheres n~1.93 d=4.18g/cc 250-265um - 10g
 In Stock $248.26
BTGMS-4.17 300-355um - 10g
Barium Titanate Solid Glass Microspheres n~1.9 d=4.17g/cc 300-355um - 10g
 In Stock $133.37
BTGMS-4.14 300-1000um - 25g
Barium Titanate Solid Glass Microspheres n~1.9 d=4.14g/cc 300-1000um - 25g
 In Stock $67.36
BTGMS-HI-4.09 325-355um - 10g
Barium Titanate Solid Glass Microspheres n~1.93 d=4.09g/cc 325-355um - 10g
 In Stock $248.26
BTGMS-HI-4.15 325-600um - 1kg
Barium Titanate Solid Glass Microspheres n~1.93 d=4.11g/cc 325-600um - 1kg
 In Stock $155.24
BTGMS-4.15 355-425um - 10g
Barium Titanate Solid Glass Microspheres n~1.9 d=4.15g/cc 355-425um - 10g
 In Stock $133.37
BTGMS-HI-4.10 355-425um - 10g
Barium Titanate Solid Glass Microspheres n~1.93 d=4.10g/cc 355-425um - 10g
 In Stock $168.40
BTGMS-4.15 425-500um - 10g
Barium Titanate Solid Glass Microspheres n~1.9 d=4.15g/cc 425-500um - 10g
 In Stock $133.37
BTGMS-HI-4.12 425-500um - 10g
Barium Titanate Solid Glass Microspheres n~1.93 d=4.12g/cc 425-500um - 10g
 In Stock $168.40
BTGMS-4.16 500-600um - 10g
Barium Titanate Solid Glass Microspheres n~1.9 d=4.16g/cc 500-600um - 10g
 In Stock $133.37
BTGMS-HI-4.13 500-600um - 10g
Barium Titanate Solid Glass Microspheres n~1.93 d= 4.13g/cc 500-600um - 10g
 In Stock $168.40
BTGMS-4.13 600-710um - 10g
Barium Titanate Solid Glass Microspheres n~1.9 d=4.13g/cc 600-710um - 10g
 In Stock $133.37
BTGMS-4.07 850-1000um - 1g
Barium Titanate Solid Glass Microspheres n~1.9 d=4.07g/cc 850-1000um - 1g
 In Stock $133.37
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