B95 B powder CAS 7440-42-8 95% Boron powder for Electronics
B95 boron powder is an amorphous elemental boron material with a minimum purity of 95%, registered under CAS number 7440‑42‑8. It features fine uniform particle size, low metallic impurity content and stable chemical properties, meeting strict raw‑material standards for the electronics industry. This boron powder delivers excellent thermal stability and semiconductor‑grade doping performance. It is widely used as a boron dopant in semiconductor manufacturing, electronic ceramic sintering and high‑precision electronic component production. It works well for controlled‑dose boron introduction during wafer processing and electronic material modification. The product has good dispersion, low oxygen content and consistent batch quality, suitable for high‑end electronic formula customization and industrial mass production.
Product Index:
| Molecular Formula: | B |
| CAS | 7440-42-8 |
| Density | ＜1.73g/cm3 |
| Phase | Mixed crystal form dominated by α-tetragonal phase |
| Crystallinity | 60% |
| Color | Dark Brown |
Specification & Chemical:
| Spec. | B95 | B99 | B99.9 | |
| Chemical | B | 95-99% | 99-99.9 | ≥99.9 |
| O | ≤2.5% | ＜1% | ＜0.01% | |
| Mg | ≤2.0% | ≤0.1% | ＜0.01% | |
| Fe | ≤0.1% | ＜0.01% | ||
| Mn | ≤0.01% | ＜0.01% | ||
| Al | ≤0.1% | ＜0.01% | ||
| Na | ≤0.1% | ＜0.01% | ||
| Cr | ≤0.01% | ＜0.01% | ||
| Ti | ≤0.01% | ＜0.01% | ||
| Ca | ≤0.1% | ＜0.01% | ||
| S | ≤0.08% | ＜0.01% | ||
| Si | ≤0.08% | ＜0.01% | ||
| Particle size | 3um | 3um,800nm | 3um | |
Product Applications:
- Amorphous boron powder with a boron content of 95-99% possesses high mass heat and volumetric heat, resulting in a large specific impulse. It is a high-quality material for rocket propellants and explosives.
- Boron powder with a boron content of over 99% is an electronic material that acts as a deoxidizer, antioxidant, and catalyst. It plays a crucial role in semiconductor manufacturing, influencing the conductivity and crystal structure of semiconductors, thereby affecting the performance and reliability of components. It is widely used in high-end products requiring high boron purity, such as electronic materials and semiconductor diffusion.
- Amorphous boron powder can be used in battery separator coatings. Coating the battery separator with a material containing amorphous boron powder can effectively improve the safety and stability of the battery.
- Amorphous boron powder is an important material in the nuclear industry for use in reactor neutron absorbers.
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