久久久久久蜜桃一区二区 欧洲美女大胆潮喷 精品少妇熟女ⅤⅤ免费久久久免费 超碰五月天亚洲论坛

  熱線電話:021-54370211?    

Selenic acid

Product Name: Selenic acid
Synonyms: SELENIC ACID;SELENIC ACID 94%;Selenic acid, 99.95% metals basis, 40 wt. % solution in water;SELENIC ACID AR;Selenicacid,40%aq.soln.;Selenicacid,40%solution;selenic acid solution;2-amino-4-(2-amino-3-hydroxy-3-oxopropyl)selanylbutanoic acid
CAS: 7783-08-6
MF: H2O4Se
MW: 144.97

EINECS: 231-979-4

Melting point 58°C
Boiling point 260°C
density 1.407 g/mL at 25 °C
refractive index n20/D 1.5174(lit.)
Fp >230 °F
solubility Miscible with sulfuric acid. Immiscible with ammonia.
Merck 14,8429
Stability: Stable, but decomposes on heating. Non-flammable. Incompatible with metals, combustible materials. Hygroscopic.
Chemical Properties colourless or white crystals
General Description A white crystalline solid. Very corrosive to skin, eyes and mucous membranes. Corrosive to metal. Toxic by skin absorption and by ingestion.
Air & Water Reactions Very hygroscopic. Soluble in water.

@ 2016 ShangHaiYaYu Biomedical co.,ltd TEL:021-54370211、54370255、54370355 FAX:021-54370255

长丰县| 镶黄旗| 马公市| 阿拉尔市| 东丽区| 收藏| 筠连县| 弥渡县| 湘乡市| 江都市| 侯马市| 喀喇| 城固县| 石首市| 黄骅市| 眉山市| 台山市| 图们市| 宣恩县| 阳原县| 遵义市| 潍坊市| 拉孜县| 广丰县| 龙胜| 仪征市| 衡阳市| 子长县| 西乌珠穆沁旗| 卓尼县| 六安市| 云南省| 麻阳| 肥乡县| 绥芬河市| 津市市| 思南县| 崇信县| 西藏| 霸州市| 文化|