酸洗玻璃珠
关注：9195
品牌：Sigma
产地：进口
等级规格：425-600 μm (30-40 U.S. sieve)
交货期：1～4周
产品别名：Glass beads, acid-washed
试剂产地：进口试剂
包装与价格：
| 订货号 | 纯度规格 | 包装 | 价格(元) |
| 2026260 | 425-600 μm (30-40 U.S. sieve) | 10G | - |
| 2026261 | 425-600 μm (30-40 U.S. sieve) | 100G | - |
| 2026262 | 425-600 μm (30-40 U.S. sieve) | 500G | - |
| 2026263 | 425-600 μm (30-40 U.S. sieve) | 1KG | - |
用 途：用来破解酵母细胞壁。
粒子大小：425-600 μm (30-40 U.S. sieve)
储存条件：室温
Density: 2.5 g/ml
Refractive index: 1.51-1.52
Compressive strength (psi average): 36,000
Poisson’s Ratio (psi): 0.21
Rigidity Modulus (psi): 4.3 x 106
Young’s Modulus (psi): 10 x 106
Hardness (Knoop 100 g load): 515 kg/mm2
Coefficient of friction (static): 0.9-1.0
Chemical composition: soda-lime silica glass
Softening point (dilatometer): 589 °C
Expansion Coefficient (25-300 °C): 85 x 107 per ℃
Strain point: 505 ℃
Annealing point: 548 ℃
Dielectric Constant: 1 Kc 7.6 D.C.
Volume Resistivity (Ohm-cm): 25 ℃ 6.5 x 1012
Lost tangent: 1 Kc 2.0% 100 Kc 1.0%.
产品发布日期：2026.01.29
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