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zl123223

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[求助] 帮忙解释一下硼酸的xrd图啊，简单的解释就行！急求急等！已有2人参与

本人小白，请高人根据下面的xrd图做出分析，越详细越好！
只有这么一张图，没有其它数据了。是做的硼酸的晶体的XRD，仪器是D/MAX—250型X射线粉末衍射仪(XRD)。根据2 d sin θ = n λ，利用d/n~I值进行基本物质分析之类的
急求急等！非常急，谢谢

硼酸图.JPG

[ Last edited by zl123223 on 2014-6-12 at 21:29 ]

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1楼 2014-06-12 20:50:49

已阅回复此楼关注TA 给TA发消息送TA红花 TA的回帖

xhtangxh

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【答案】应助回帖

感谢参与，应助指数 +1

这的确是结晶硼酸，至少结晶相是纯的，与JCPDS No. 30-199卡片数据基本吻合，仅峰相对强度有一定出入，可能与结晶颗粒的形状有关，也可能是制样产生的取向效应引起。

Card Information
Names: Hydroxide Boron
Sassolite, syn
boric acid
Formula: B ( O H )3
PDF Number: 30-199
Quality: star
Subfiles: inorganic mineral COR CP  PHR

Cell and Symmetry Information
System: triclinic Space Group: P-1    (no. 2)
a: 7.039 b: 7.053 c: 6.578
alpha: 92.58 beta: 101.17 gamma: 119.83

Density (Dm): 1.460 Density (Dx): 1.499 Z: 4

Instrument Information
Radiation: CuKa Wavelength: 1.5418
Instrument(d): unknown
Instrument(I): diffractometer I type: unknown
I/Icor: 2.00

Comments and Additional Information
Colour: White
Melting Point: 160
General: Exhibits 00l preferred orientation.
Pattern: See ICSD 24711 (PDF 01-073-2158).

Literature References
General: Wang, P., Polytechnic Institute of New York,Brooklyn, New York, USA. ICDD Grant-in-Aid          (1979)
Unit Cell: Zachariasen. Acta Crystallogr. 7 305 (1954)

Peak Data
2-Theta d(?) I(f) ( h k l ) Theta 1/(2d) 2pi/d n^2
14.629 6.0500 30.0 ( 0 1 0) 7.315 0.0826 1.0385
14.978 5.9100 20.0 ( 1 0 0) 7.489 0.0846 1.0631
17.724 5.0000 3.0 (-1 0 1) 8.862 0.1000 1.2566
18.508 4.7900 6.0 ( 0-1 1) 9.254 0.1044 1.3117
19.279 4.6000 6.0 (-1 1 1) 9.640 0.1087 1.3659
21.085 4.2100 8.0 ( 1-1 1) 10.542 0.1188 1.4924
21.873 4.0600 6.0 ( 0 1 1) 10.937 0.1232 1.5476
26.881 3.3140 1.0 (-2 1 1) 13.440 0.1509 1.8960
28.027 3.1810 100.0 ( 0 0 2) 14.013 0.1572 1.9752
28.382 3.1420 15.0 ( 1-2 1) 14.191 0.1591 1.9997
29.474 3.0280 10.0 ( 0-1 2) 14.737 0.1651 2.0750
30.199 2.9570 10.0 ( 2 0 0) 15.099 0.1691 2.1249
30.580 2.9210 10.0 ( 0-2 1) 15.290 0.1712 2.1510
31.474 2.8400 7.0 (-2 2 1) 15.737 0.1761 2.2124
32.877 2.7220 7.0 ( 1-1 2) 16.438 0.1837 2.3083
33.915 2.6410 10.0 ( 0 1 2) 16.957 0.1893 2.3791
34.966 2.5640 6.0 ( 0 2 1) 17.483 0.1950 2.4505
35.178 2.5490 5.0 ( 1 0 2) 17.589 0.1962 2.4650
35.891 2.5000 6.0 (-2 0 2) 17.945 0.2000 2.5133
39.311 2.2900 2.0 (-1-2 1) 19.656 0.2183 2.7437
39.419 2.2840 2.0 (-3 1 1) 19.709 0.2189 2.7510
39.929 2.2560 5.0 ( 1 2 0) 19.964 0.2216 2.7851
40.320 2.2350 7.0 ( 2 1 0) 20.160 0.2237 2.8113
41.623 2.1680 2.0 ( 2-3 1) 20.812 0.2306 2.8981
43.037 2.1000 5.0 (-1 3 1) 21.518 0.2381 2.9920
43.166 2.0940 5.0 (-2-1 2) 21.583 0.2388 3.0006
46.584 1.9480 1.0 ( 1-1 3) 23.292 0.2567 3.2255
46.865 1.9370 1.0 ( 2 0 2) 23.432 0.2581 3.2438
54.196 1.6910 2.0 (-4 1 1) 27.098 0.2957 3.7157
54.864 1.6720 2.0 ( 4-3 0) 27.432 0.2990 3.7579
55.953 1.6420 3.0 (-1 0 4) 27.977 0.3045 3.8265
57.913 1.5910 15.0 ( 0 0 4) 28.957 0.3143 3.9492
58.559 1.5750 2.0 (-2 0 4) 29.279 0.3175 3.9893
62.538 1.4840 1.0 (-2-1 4) 31.269 0.3369 4.2340