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氧化鉭價(jià)格

氧化鉭 更多供應(yīng)商 1314-61-0 氧化鉭 價(jià)格

性狀
菱形柱狀體。相對密度8.2。熔點(diǎn)1872℃±10℃。溶于熔融硫酸氫鉀和氫氟酸,不溶于水和其他酸。
所屬類別
無機(jī)化工產(chǎn)品: 無機(jī)鹽: 其他無機(jī)化合物
用途與作用
供拉鉭酸鋰單晶和制造高折射低色散特種光學(xué)玻璃用,化工中可作催化劑。
合成工藝與制法
氟鉭酸鉀法將氟鉭酸鉀與硫酸加熱至400℃,反應(yīng)物加水至沸,經(jīng)充分稀釋使酸化溶液水解,生成水合氧化物沉淀,再經(jīng)分離、洗滌、烘干,得五氧化二鉭成品。其反應(yīng)式如下:
2K2TaF7+2H2SO4+5H2O→Ta2O5+2K2SO4+14HF
金屬鉭氧化法將金屬鉭片溶于硝酸、氫氟酸混酸中,經(jīng)萃取提純,用氨水沉淀氫氧化鉭,再經(jīng)水洗、烘干、灼燒、磨細(xì),得五氧化二鉭成品。其反應(yīng)式如下:
3Ta+5HNO3+21HF→3H2TaF7+5NO+10H2O
H2TaF7+7NH4OH→Ta(OH)5+7NH4F+2H2O
2Ta(OH)5→Ta2O5+5H2O
參考質(zhì)量標(biāo)準(zhǔn)
國家標(biāo)準(zhǔn)GB 10577—89
指標(biāo)名稱指標(biāo)
特級045一級04二級035
外觀白色粉末,無肉眼可見的夾雜物
鈮(Nb)/%≤0.00150.0030.008
鋁(A1)/%≤0.00030.00050.001
硼(B)/%≤0.0001--
鉍(Bi)/%≤0.0001--
鉻(Cr)/%≤0.00010.00030.001
銅(Cu)/%≤0.00030.00050.001
氟(F)/%≤0.0030.0070.015
鐵(Fe)/%≤0.00030.00050.001
錳(Mn)/%≤0.00010.00030.0005
鉬(Mo)/%≤0.00030.00050.001
鎳(Ni)/%≤0.00010.00030.001
鉛(Pb)/%≤0.0003--
硅(Si)/%≤0.00070.00130.005
錫(Sn)/%≤0.00010.00030.0005
鈦(Ti)/%≤0.00010.00030.0005
鎢(W)/%≤0.00030.00050.001


氧化鉭價(jià)格(試劑級)

更新日期產(chǎn)品編號品牌產(chǎn)品信息CAS號MDL號規(guī)格與純度包裝價(jià)格庫存信息操作
2024/11/08 073118 五氧化二鉭(V), 光譜級, 99.5% (metals basis)
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2024/11/08 036343 氧化鉭(V), 99.95% (metals basis excluding Nb), Nb <200ppm
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1314-61-0 25g 2038元 待詢價(jià) 詳細(xì)
2024/11/08 014709 五氧化二鉭(V), 99% (metals basis)
Tantalum(V) oxide, 99% (metals basis), Thermo Scientific Chemicals
1314-61-0 10g 479元 待詢價(jià) 詳細(xì)
2024/11/08 036343 氧化鉭(V), 99.95% (metals basis excluding Nb), Nb <200ppm
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1314-61-0 100g 6119元 待詢價(jià) 詳細(xì)
2024/11/08 014709 五氧化二鉭(V), 99% (metals basis)
Tantalum(V) oxide, 99% (metals basis), Thermo Scientific Chemicals
1314-61-0 50g 1674元 待詢價(jià) 詳細(xì)
2024/11/08 014709 五氧化二鉭(V), 99% (metals basis)
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1314-61-0 250g 4620元 待詢價(jià) 詳細(xì)
2024/11/08 011336 五氧化二鉭(V), 99.85% (metals basis)
Tantalum(V) oxide, 99.85% (metals basis)
1314-61-0 99.85 25g 975元 待詢價(jià) 詳細(xì)
2024/11/08 011336 五氧化二鉭(V), 99.85% (metals basis)
Tantalum(V) oxide, 99.85% (metals basis)
1314-61-0 99.85 100g 2648元 待詢價(jià) 詳細(xì)
2024/11/08 011336 五氧化二鉭(V), 99.85% (metals basis)
Tantalum(V) oxide, 99.85% (metals basis)
1314-61-0 99.85 500g 11640元 待詢價(jià) 詳細(xì)
2024/11/08 010881 五氧化二鉭(V), Puratronic®, 99.993% (metals basis 去除 Nb), Nb 50ppm 最高
Tantalum(V) oxide, Puratronic™, 99.993% (metals basis excluding Nb), Nb 50ppm max, Thermo Scientific Chemicals
1314-61-0 25g 3129元 待詢價(jià) 詳細(xì)
2024/11/08 010881 五氧化二鉭(V), Puratronic®, 99.993% (metals basis 去除 Nb), Nb 50ppm 最高
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1314-61-0 100g 7315元 待詢價(jià) 詳細(xì)
2024/11/08 010881 五氧化二鉭(V), Puratronic®, 99.993% (metals basis 去除 Nb), Nb 50ppm 最高
Tantalum(V) oxide, Puratronic™, 99.993% (metals basis excluding Nb), Nb 50ppm max, Thermo Scientific Chemicals
1314-61-0 500g 21612元 待詢價(jià) 詳細(xì)
2024/11/08 19417 五氧化二鉭(V), 99.99% (trace metal basis)
Tantalum(V) oxide, 99.99%, (trace metal basis), Thermo Scientific Chemicals
1314-61-0 10g 1193元 待詢價(jià) 詳細(xì)
2024/11/08 19417 五氧化二鉭(V), 99.99% (trace metal basis)
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1314-61-0 50g 4191元 待詢價(jià) 詳細(xì)
2024/11/08 51025465 五氧化二鉭
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1314-61-0 25G 301元 >10 詳細(xì)
2024/04/30 14709 五氧化二鉭(V), 99% (metals basis)
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1314-61-0 MFCD00011254 10g 479元 0 詳細(xì)
2024/04/30 14709 五氧化二鉭(V), 99% (metals basis)
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1314-61-0 MFCD00011254 50g 1674元 0 詳細(xì)
2024/04/30 10881 五氧化二(V), Puratronic®, 99.993% (metals basis excluding Nb), Nb 50ppm max
Tantalum(V) oxide, Puratronic®, 99.993% (metals basis excluding Nb), Nb 50ppm max
1314-61-0 MFCD00011254 25g 3129元 2 詳細(xì)
2024/04/30 36343 氧化鉭(V), 99.95% (metals basis excluding Nb), Nb <200ppm
Tantalum(V) oxide, 99.95% (metals basis excluding Nb), Nb <200ppm
1314-61-0 MFCD00011254 25g 2038元 1 詳細(xì)
2024/04/30 14709 五氧化二鉭(V), 99% (metals basis)
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1314-61-0 MFCD00011254 250g 4620元 0 詳細(xì)
2024/04/30 36343 氧化鉭(V), 99.95% (metals basis excluding Nb), Nb <200ppm
Tantalum(V) oxide, 99.95% (metals basis excluding Nb), Nb <200ppm
1314-61-0 MFCD00011254 100g 6119元 1 詳細(xì)
2024/04/30 10881 五氧化二(V), Puratronic®, 99.993% (metals basis excluding Nb), Nb 50ppm max
Tantalum(V) oxide, Puratronic®, 99.993% (metals basis excluding Nb), Nb 50ppm max
1314-61-0 MFCD00011254 100g 7315元 1 詳細(xì)
2024/04/30 C19417 五氧化二鉭(V), Puratronic?, 99.993% (metals basis 去除 Nb), Nb 50ppm 最高
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1314-61-0 Puratronic?, 99.993 50g 4191元 1 詳細(xì)
2024/04/30 C19417 五氧化二鉭(V), Puratronic?, 99.993% (metals basis 去除 Nb), Nb 50ppm 最高
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1kg 0元 請?jiān)冐浧? 詳細(xì)
2021/12/30 10881 五氧化二(V), Puratronic®, 99.993% (metals basis excluding Nb), Nb 50ppm max
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鉭價(jià)格(試劑級) 氧化鉭價(jià)格(試劑級) 乙醇鉭價(jià)格(試劑級) 鉭酸鋰價(jià)格(試劑級)