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鈣價(jià)格

更多供應(yīng)商 7440-70-2 價(jià)格

性狀
銀白色柔軟金屬。相對(duì)密度1.54。熔點(diǎn)(839±2)℃。沸點(diǎn)1484℃。溶于酸、液氨,微溶于醇,不溶于苯。其純度越高,在空氣中表面變暗越慢。在空氣中遇強(qiáng)熱時(shí),燃燒生成氧化鈣和氮化鈣。在400℃以上和氫反應(yīng)緩慢生成氫化鈣。在常溫下與水反應(yīng)緩和,生成氫氧化鈣保護(hù)膜,加熱時(shí)與水激烈反應(yīng)放出氫氣。化學(xué)性質(zhì)非?;顫?,具有很強(qiáng)的還原能力,易與鹵素、硫、氮等化合。加熱時(shí)能還原幾乎所有的金屬氧化物。易燃。
所屬類別
無(wú)機(jī)化工產(chǎn)品: 無(wú)機(jī)鹽: Cu單質(zhì)
用途與作用
用作合金的脫氧劑、高質(zhì)量金屬冶煉的還原劑、鐵和鐵合金的脫硫和脫碳劑、特殊鋼結(jié)晶粒度調(diào)整劑,以及鎂鑄造表面的清洗劑。用于制造軸承合金、油類的脫水劑。是生產(chǎn)維生素A和制造氫化鈣的原料。也用于制備蓄電池、合金電極等。
合成工藝與制法
電解法將干燥后的無(wú)水氯化鈣投入電解槽內(nèi),用氧炔焰噴熔電解槽內(nèi)陽(yáng)極(石墨)旁的原料,即開(kāi)冷卻水,將陰極(圓鋼)放下,接觸料液表面,通入電流。使熔融的料液流向陰極接通電路。待原料大部分熔融后繼續(xù)再加新料,直到離槽沿2~3 cm,溫度正常為止。
金屬鈣沉積在陰極上,電流為350~450 A,電壓為20~25 V,在敲擊陰極上沉積的金屬鈣以前,應(yīng)將電流降低50~100A。待敲下的金屬鈣放入油中后,陰極再接觸電解質(zhì)液面,再使電流升高50~100 A,為保持電解槽溫度,應(yīng)陸續(xù)加料。氯氣由陽(yáng)極逸出,回收利用。其反應(yīng)式如下:
CaCl2[電解]→CaCl2↑
參考質(zhì)量標(biāo)準(zhǔn)
國(guó)家標(biāo)準(zhǔn)GB 4864—85
化學(xué)成分%
雜質(zhì)含量,≤
牌號(hào)Ca,≥ClNMgCuNiMnSiFeAl雜質(zhì)總量
外觀產(chǎn)品新斷面呈銀白色金屬光澤。不得有肉眼可見(jiàn)夾雜
Ca-0399.90.060.150.150.0050.0020.0050.0020.0020.0030.1
Ca-199.50.200.040.200.010.0050.0060.0040.0150.020.5
Ca-299.00.300.100.450.050.0070.010.0080.020.061.0
Ca-398.50.500.150.500.200.100.030.010.030.071.5


鈣價(jià)格(試劑級(jí))

更新日期產(chǎn)品編號(hào)品牌產(chǎn)品信息CAS號(hào)MDL號(hào)規(guī)格與純度包裝價(jià)格庫(kù)存信息操作
2024/08/19 042917 鈣顆粒, 重蒸, -16目, 99.5% (metals basis)
Calcium granules, redistilled, -16 mesh, 99.5% (metals basis)
7440-70-2 MFCD00085314 10g 933元 待詢價(jià) 詳細(xì)
2024/08/19 042917 鈣顆粒, 重蒸, -16目, 99.5% (metals basis)
Calcium granules, redistilled, -16 mesh, 99.5% (metals basis)
7440-70-2 MFCD00085314 50g 4502元 待詢價(jià) 詳細(xì)
2024/08/19 042917 鈣顆粒, 重蒸, -16目, 99.5% (metals basis)
Calcium granules, redistilled, -16 mesh, 99.5% (metals basis)
7440-70-2 MFCD00085314 250g 4726元 待詢價(jià) 詳細(xì)
2024/08/19 041653 鈣顆粒, -9目, 98.8% (metals basis)
Calcium granules, -9 mesh, 98.8% (metals basis), Thermo Scientific Chemicals
7440-70-2 50g 1858元 待詢價(jià) 詳細(xì)
2024/08/19 041653 鈣顆粒, -9目, 98.8% (metals basis)
Calcium granules, -9 mesh, 98.8% (metals basis), Thermo Scientific Chemicals
7440-70-2 250g 6290元 待詢價(jià) 詳細(xì)
2024/08/19 041653 鈣顆粒, -9目, 98.8% (metals basis)
Calcium granules, -9 mesh, 98.8% (metals basis), Thermo Scientific Chemicals
7440-70-2 1kg 22988元 待詢價(jià) 詳細(xì)
2024/08/19 010125 鈣旋轉(zhuǎn)片, 98% (metals basis)
Calcium turnings, 98% (metals basis), Thermo Scientific Chemicals
7440-70-2 10g 174元 待詢價(jià) 詳細(xì)
2024/08/19 010125 鈣旋轉(zhuǎn)片, 98% (metals basis)
Calcium turnings, 98% (metals basis), Thermo Scientific Chemicals
7440-70-2 100g 2182元 待詢價(jià) 詳細(xì)
2024/08/19 010128
Calcium ingot
7440-70-2 97% (metals basis) 700g 7938元 待詢價(jià) 詳細(xì)
2024/08/19 010125 鈣旋轉(zhuǎn)片, 98% (metals basis)
Calcium turnings, 98% (metals basis), Thermo Scientific Chemicals
7440-70-2 500g 12325元 待詢價(jià) 詳細(xì)
2024/08/19 000875 鈣顆粒, 重蒸, -6目, 99.5% (metals basis)
Calcium granules, redistilled, -6 mesh, 99.5% (metals basis), Thermo Scientific Chemicals
7440-70-2 250g 757元 待詢價(jià) 詳細(xì)
2024/08/19 000875 鈣顆粒, 重蒸, -6目, 99.5% (metals basis)
Calcium granules, redistilled, -6 mesh, 99.5% (metals basis), Thermo Scientific Chemicals
7440-70-2 1kg 2476元 待詢價(jià) 詳細(xì)
2024/08/19 20118 鈣, 99%, 碎片狀
Calcium, 99%, pieces, Thermo Scientific Chemicals
7440-70-2 5g 628元 待詢價(jià) 詳細(xì)
2024/08/19 20118 鈣, 99%, 碎片狀
Calcium, 99%, pieces, Thermo Scientific Chemicals
7440-70-2 100g 1252元 待詢價(jià) 詳細(xì)
2024/08/19 20118 鈣, 99%, 碎片狀
Calcium, 99%, pieces, Thermo Scientific Chemicals
7440-70-2 500g 4368元 待詢價(jià) 詳細(xì)
2024/08/19 20118 鈣, 99%, 碎片狀
Calcium, 99%, pieces, Thermo Scientific Chemicals
7440-70-2 2.5kg 13613元 待詢價(jià) 詳細(xì)
2024/08/19 19588 鈣標(biāo)準(zhǔn)溶液
Calcium standard solution, for AAS, 1 mg/ml Ca in 2 to 5% HNO3, Thermo Scientific Chemicals
100ml 345元 待詢價(jià) 詳細(xì)
2024/08/19 19588 鈣標(biāo)準(zhǔn)溶液
Calcium standard solution, for AAS, 1 mg/ml Ca in 2 to 5% HNO3, Thermo Scientific Chemicals
500ml 824元 待詢價(jià) 詳細(xì)
2024/08/19 C/0840 鈣,250GR
Calcium, extra pure, SLR, meta
7440-70-2 25g 259元 待詢價(jià) 詳細(xì)
2024/08/19 53204261 鈣標(biāo)準(zhǔn)溶液
Calcium standard solution
100mL 164元 請(qǐng)?jiān)冐浧? 詳細(xì)
2024/08/19 53204260 鈣標(biāo)準(zhǔn)溶液
Calcium standard solution
100mL 87元 請(qǐng)?jiān)冐浧? 詳細(xì)
2024/04/30 10125 鈣旋轉(zhuǎn)片, 98% (metals basis)
Calcium turnings, 98% (metals basis)
7440-70-2 MFCD00085314 10g 174元 0 詳細(xì)
2024/04/30 010127
Calcium shot, redistilled, 1cm (0.4in) & down
7440-70-2 99.5% (metals basis) 50g 514元 0 詳細(xì)
2024/04/30 00875 鈣顆粒, 重蒸, -6目, 99.5% (metals basis)
Calcium granules, redistilled, -6 mesh, 99.5% (metals basis)
7440-70-2 MFCD00085314 1kg 2476元 0 詳細(xì)
2024/04/30 10125 鈣旋轉(zhuǎn)片, 98% (metals basis)
Calcium turnings, 98% (metals basis)
7440-70-2 MFCD00085314 100g 2182元 0 詳細(xì)
2024/04/30 41653 鈣顆粒, -9目, 98.8% (metals basis)
Calcium granules, -9 mesh, 98.8% (metals basis)
7440-70-2 MFCD00085314 50g 1858元 0 詳細(xì)
2024/04/30 41653 鈣顆粒, -9目, 98.8% (metals basis)
Calcium granules, -9 mesh, 98.8% (metals basis)
7440-70-2 MFCD00085314 1kg 22988元 0 詳細(xì)
2024/04/30 10125 鈣旋轉(zhuǎn)片, 98% (metals basis)
Calcium turnings, 98% (metals basis)
7440-70-2 MFCD00085314 500g 12325元 0 詳細(xì)
2024/04/30 41653 鈣顆粒, -9目, 98.8% (metals basis)
Calcium granules, -9 mesh, 98.8% (metals basis)
7440-70-2 MFCD00085314 250g 6290元 0 詳細(xì)
2024/04/30 C20118 鈣, 99%, 碎片狀
Calcium, 99%, pieces
7440-70-2 99 500g 4368元 0 詳細(xì)
2024/04/30 C20118 鈣, 99%, 碎片狀
Calcium, 99%, pieces
7440-70-2 99 2.5kg 13613元 0 詳細(xì)
2024/04/30 C20118 鈣, 99%, 碎片狀
Calcium, 99%, pieces
7440-70-2 99 100g 1252元 0 詳細(xì)
2024/04/30 C19588 鈣標(biāo)準(zhǔn)溶液
Calcium standard solution, for AAS, 1 mg/ml Ca in 2 to 5% HNO3
7440-70-2 500ml 824元 0 詳細(xì)
2024/04/30 C20118 鈣, 99%, 碎片狀
Calcium, 99%, pieces
7440-70-2 99 5g 628元 1 詳細(xì)
2024/04/30 C19588 鈣標(biāo)準(zhǔn)溶液
Calcium standard solution, for AAS, 1 mg/ml Ca in 2 to 5% HNO3
7440-70-2 100ml 345元 1 詳細(xì)
2024/01/16 L12761 鈣顆粒,大約0.8-6mm, 97+%
Calcium granules, ca 0.8-6mm, 97+%
7440-70-2 MFCD00085314 50g 335元 0 詳細(xì)
2024/01/16 L12761 鈣顆粒,大約0.8-6mm, 97+%
Calcium granules, ca 0.8-6mm, 97+%
7440-70-2 MFCD00085314 250g 635元 0 詳細(xì)
2024/01/16 00875 鈣顆粒, 重蒸, -6目, 99.5% (metals basis)
Calcium granules, redistilled, -6 mesh, 99.5% (metals basis)
7440-70-2 MFCD00085314 250g 757元 0 詳細(xì)
2023/10/26 C36574
Calcium, 99%, turnings 100GR
7440-70-2 25g 444元 0 詳細(xì)
2023/10/26 C36574
Calcium, 99%, turnings 100GR
7440-70-2 100g 1265元 0 詳細(xì)
2023/10/26 C36574
Calcium, 99%, turnings 100GR
7440-70-2 500g 3825元 0 詳細(xì)
2021/02/25 014457
Calcium crystalline dendritic pieces
7440-70-2 99.98% (metals basis) 5g 1479元 詳細(xì)
2021/02/25 010128
Calcium ingot
7440-70-2 97% (metals basis) 150g 1360元 詳細(xì)
2021/02/25 014457
Calcium crystalline dendritic pieces
7440-70-2 99.98% (metals basis) 25g 6736元 詳細(xì)
2021/02/25 010128
Calcium ingot
7440-70-2 97% (metals basis) *5x700g 12967元 詳細(xì)
2021/02/25 010127
Calcium shot, redistilled, 1cm (0.4in) & down
7440-70-2 99.5% (metals basis) 5g 54元 詳細(xì)
2021/02/25 010127
Calcium shot, redistilled, 1cm (0.4in) & down
7440-70-2 99.5% (metals basis) 250g 500元 詳細(xì)
2021/02/25 010127
Calcium shot, redistilled, 1cm (0.4in) & down
7440-70-2 99.5% (metals basis) *2x500g 3761元 詳細(xì)
2021/02/25 010126
Calcium shot, 1cm (0.4in) & down
7440-70-2 99% (metals basis) 100g 415元 詳細(xì)
2021/02/25 010126
Calcium shot, 1cm (0.4in) & down
7440-70-2 99% (metals basis) 500g 1382元 詳細(xì)
2021/02/25 010126
Calcium shot, 1cm (0.4in) & down
7440-70-2 99% (metals basis) *4x500g 4146元 詳細(xì)
2020/09/30 10126 鈣丸, 1cm (0.4in) & down, 99% (metals basis)
Calcium shot, 1cm (0.4in) & down, 99% (metals basis)
7440-70-2 MFCD00085314 500g 3458元 0 詳細(xì)
2020/09/30 10126 鈣丸, 1cm (0.4in) & down, 99% (metals basis)
Calcium shot, 1cm (0.4in) & down, 99% (metals basis)
7440-70-2 MFCD00085314 100g 705元 0 詳細(xì)
2020/09/30 14457 鈣晶片, 99.98% (metals basis)
Calcium crystalline dendritic pieces, 99.98% (metals basis)
7440-70-2 MFCD00085314 5g 360元 0 詳細(xì)
2010/05/25 10126 鈣丸, 1cm (0.4in) & down, 99% (metals basis)
Calcium shot, 1cm (0.4in) & down, 99% (metals basis)
7440-70-2 MFCD00085314 4x500g 3430元 詳細(xì)
2010/05/25 14457 鈣晶片, 99.98% (metals basis)
Calcium crystalline dendritic pieces, 99.98% (metals basis)
7440-70-2 MFCD00085314 25g 10248元 詳細(xì)
氫氧化鈣價(jià)格(試劑級(jí)) 丙酸鈣價(jià)格(試劑級(jí)) 磷酸氫鈣價(jià)格(試劑級(jí)) 次磷酸鈣價(jià)格(試劑級(jí)) 硝酸鈣(四水)價(jià)格(試劑級(jí)) 亞葉酸鈣價(jià)格(試劑級(jí)) 鈣黃綠素價(jià)格(試劑級(jí)) 碳酸鈣價(jià)格(試劑級(jí)) D-泛酸鈣價(jià)格(試劑級(jí))