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Product details
名称
纳米羟基磷灰石(HAp)
别名
骨粉 | HAp | Si-Hap | 三碱基磷酸钙 | 磷酸钙 三元 | 羟磷灰石
英文名称
Hydroxylapatite
货号
H139930-25g
包装规格
25g
级别
PharmPure™
浓度
≥98%
运输条件
常规运输
敏感性
对湿度敏感
产品介绍
羟基磷灰石的组成和晶体结构羟基磷灰石的理论组成为Ca10(PO4)6(OH)2,Ca/P 为1.67,但由于受到制备过程的影响,其真正的组成是相当复杂的。 HA 晶体为六方晶系,属L6PC 对称型和P63/m空间群,其结构为六角柱体,与c 轴垂直的面是一个六边形,a、b 轴夹角120o;,其晶胞参数为a=9.43~9.38?;,c=6.88~6.86?;,z=2,单位晶胞含有10 个Ca2+、6 个PO43-和2 个OH-。HA 微晶表面具有几种可能的表面状态:(1)当OH 位于晶体表面时,OH 与2个Ca(Ⅱ)离子相连,当HA 在水溶液中时,这个表面OH 位置至少在某一瞬间空缺,由于2 个Ca(Ⅱ)离子带正电荷,形成了一个吸附位置,这个位置能吸附PO43-或大分子上的磷酸根基团或羧基基团。(2)当Ca 离子位于晶体的表面时,由于Ca(Ⅰ)与6 个带负电电荷的O 原子相连,当HA 在水溶液中,表面的Ca(Ⅰ)位置在某一瞬间空缺时,就在Ca(Ⅰ)位置形成较强的吸附位置,能吸附Sr3+、K+等阳离子及蛋白质分子的基团,而在Ca(Ⅱ)位置则形成一个较弱的吸附位置。(3)PO43-位于晶体的表面时,H2O 通过氢键与PO43-离子结合。纯化蛋白质,从双链RNA中分离单链RNA,纯化DNA
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Research chemical 25g; ≥98%

Research chemical 25g; ≥98%; supplied for laboratory research, analysis, inspection, and scientific procurement use; specifications: 25g; ≥98%.

item number:H139930-25g
Product model:25g
level: 25g; ≥98%
Lead Time:30days
sold 430 Items
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25g

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