During scientific experiment design and analysis it is common to need to know the number of spheres per gram of dry material.? We have put together the table below to help speed up the process.
If you have material of a density different from those listed in the table, divide the number of spheres per gram in the density ~1.0 g/cc column by the true particle density of your material to get an estimate of the number of spheres per gram.
| Product Size | Polyethylene Density ~1.0 (g/cc) |
Soda Lime Glass Density ~2.5 (g/cc) |
|
| Lower (um) | Upper (um) | Spheres per Gram | Spheres Per Gram |
| 20 | 27 | 147,162,715 | 58,630,564 |
| 27 | 32 | 74,393,558 | 29,638,868 |
| 32 | 45 | 33,467,185 | 13,333,540 |
| 45 | 53 | 16,233,536 | 6,467,544 |
| 53 | 63 | 9,788,528 | 3,899,812 |
| 63 | 75 | 5,813,720 | 2,316,223 |
| 75 | 90 | 3,401,258 | 1,355,083 |
| 90 | 106 | 2,029,192 | 808,443 |
| 106 | 125 | 1,239,525 | 493,835 |
| 125 | 150 | 734,672 | 292,698 |
| 150 | 180 | 425,157 | 169,385 |
| 180 | 212 | 253,649 | 101,055 |
| 212 | 250 | 154,941 | 61,729 |
| 250 | 300 | 91,834 | 36,587 |
| 300 | 355 | 54,371 | 21,662 |
| 355 | 425 | 32,196 | 12,827 |
| 425 | 500 | 19,305 | 7,691 |
| 500 | 600 | 11,479 | 4,573 |
| 600 | 710 | 6,796 | 2,708 |
| 710 | 850 | 4,025 | 1,603 |
| 850 | 1000 | 2,413 | 961 |
| 1180 | 1400 | 890 | 354 |
| 1400 | 1700 | 513 | 204 |
| 1700 | 2000 | 302 | 120 |
| 2000 | 2360 | 184 | 73 |
| 2360 | 2800 | 111 | 44 |
| 2800 | 3350 | 66 | 26 |
Note: This table assumes the mean diameter is half way between the upper and lower size.
The articles on this site are written by microsphere experts from Cospheric LLC – the leading global supplier and manufacturer of precision spherical particles.
When presenting information we look at a wide variety of sources, putting a big emphasis on any peer-reviewed technical articles that are getting published in reputable journals. Our goal is to present you with a well-rounded and informed view on the microsphere market, technologies, and applications.
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