ʻO ka sodium molybdate CAS 7631-95-0
Sodium molybdate, formula Na2MoO4. Kaumaha molekula 205.92. He aniani daimana keʻokeʻo. He aniani keʻokeʻo opaque. Ka helu heheʻe 687 ℃, mānoanoa pili 3.2818. E hoʻoheheʻe i ka wai. Hiki ke loaʻa ka dihydrate ma o ka crystallization mai ka wai wai (ka hopena alkaline me ka pH kiʻekiʻe ma mua o 8). ʻO ka hope he aniani rhombohedral keʻokeʻo. Loaʻa nā ʻona MoO42- ma ke ʻano he tetrahedron mau me ka mānoanoa pili o 3.28. Ke hoʻomehana ʻia i ka 100 ℃, nalowale nā molekala wai 2 no ka loaʻa ʻana o ka waiwai anhydrous, hiki ke hoʻoheheʻe ʻia i ka wai, hiki ke hoʻoheheʻe ʻia i loko o 1.7 mau ʻāpana wai anuanu a ma kahi o 0.9 mau ʻāpana wai paila. 5% wai wai ma 25 ℃ pH 9.0 ~ 10.0, hiki ʻole ke hoʻoheheʻe i ka ethyl acetate. Ma ka hoʻohui mālie ʻana i ka waikawa i ka solution sodium molybdate a hoʻemi i ka pH o ka hopena, hiki ke polymerized ka molybdate i nā ʻano paʻakai polymolybdate, me ka sodium dimolybdate, sodium trimolybdate, sodium paramolybdate, sodium octamolybdate a me ka sodium decamolybdate.
| MEA | HUA % |
| Na2MoO4•2H2O | 99.29 |
| Mo | 39.38 |
| ʻAʻole hiki ke hoʻonā wai | 0.1 ka nui |
| NH4 | 0.005 ka nui |
| Pb | 0.001 ka nui |
| Fe | 0.002 ka nui |
| PO4 | 0.05 ka nui |
| SO4 | 0.01 ka nui |
| pH | 9.5 |
ʻO ka sodium molybdate ka sodium molybdate, i hoʻohana ʻia ma ke ʻano he mea hoʻokaʻawale metala, mea hoʻoneʻe unahi, mea hoʻolaha bleaching a me ka ʻili a me ka lauoho pale pale, hoʻohana ʻia ma ke ʻano he analytical reagent no ka hoʻoholo ʻana o ka alkaloid, dyes a me ka ʻoihana lāʻau; Hiki ke hoʻohana ʻia ka sodium molybdate i ka hana ʻana i nā alkaloids, ink, fertilizer, molybdenum red pigment a me ka wikiwiki pigment precipitant, catalyst, molybdenum paʻakai, hiki ke hoʻohana ʻia i ka hana ʻana i nā mea hoʻopaʻa ahi a me nā ʻano wai anuanu ʻole o nā ʻano mea hoʻoheheʻe metala, i hoʻohana ʻia hoʻi e like me ka galvanizing, polishing agent a me ke kemika re.
25kg/ʻeke
ʻO ka sodium molybdate CAS 7631-95-0
ʻO ka sodium molybdate CAS 7631-95-0
