CAS: 7783-08-6; Selenic Acid

该化合物是一种含有的强烈矿物酸,是一种无色,粘稠液体,在水中高度溶解,形成一种强酸溶液,因其氧化特性而闻名,使它在各种化学反应中成为强大的试剂,特别是在有机合成和分析化学中,它可以与包括金属和有机化合物在内的各种物质发生反应,经常导致反应剂氧化.酸是合血球,意味着它可以吸收空气中的湿气,也可以在分解时释放有毒烟雾.由于其腐蚀性性质,所以对健康构成重大危害,需要小心处理和适当的安全措施防止接触.在应用方面,它被用于生产化合物,以及用于半导体工业和某些催化剂的制造.

⚠️危险化学品目录(2015年版) 皮肤腐蚀/刺激,类别1
英文名称Selenic Acid
中文名称硒酸
IUPAC名称selenic acid
CAS编号7783-08-6
MFCD编号:MFCD00012191
EINECS号:231-979-4
分子式:H2O4Se
分子量:144.97
产品CID: 2512292
产品分类无机化工 → 无机酸

相似结构搜索
产品信息参考;;;;
InChIKey: QYHFIVBSNOWOCQ-UHFFFAOYSA-N
1S\/2K.H2O4Se\/c;;1-5(2,3)4\/h;;(H2,1,2,3,4)\/q2*+1;\/p-2…
计算化学: 氢键受体数4.0氢键供体数2.0可旋转键数0.0

物理性质

熔点58°C
沸点260°C
闪点>230 °F
密度1.407 g/mL at 25 °C
PH:2.74(1 mM solution);1.83(10 mM solution);0.97(100 mM solution)
pKa:4.19±0.10(预测)
PSA:74.6
LogP:-0.972
折射率n20/D 1.5174(文献)
溶解性Miscible With Sulfuric Acid. Immiscible With Ammonia.
敏感性SELENIC ACID reacts exothermically with chemical bases (for example: amines and inorganic hydroxides) to form salts. The reactions can generate dangerously large amounts of heat in small spaces. A good oxidizing agent. It may oxidize organic matter such as wood, cotton, fiberboard, etc. The solid reacts with active metals, including iron and aluminum, and also less active metals, to dissolve the metal and liberate hydrogen and/or toxic gases. Can initiate polymerization in certain classes of organic compounds. Reacts with cyanide salts and compounds to release gaseous hydrogen cyanide. Flammable and/or toxic gases are also often generated with dithiocarbamates, isocyanates, mercaptans, nitrides, nitriles, sulfides, and weak or strong reducing agents. Additional gas-generating reactions occur with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), and even carbonates: the carbon dioxide gas from the last is nontoxic but the heat and spattering from the reaction can be troublesome. May catalyze (increase the rate of) chemical reactions.
外观形态无色液体
储存条件储存注意事项: - 储存于阴凉,干燥,通风良好的库房. - 远离火种,热源. - 包装必须密封,切勿受潮. - 应与氧化剂,碱类分开存放,切忌混储. - 储区应备有合适的材料收容泄漏物.
产品应用该化合物用于制备金(III) 等其他盐.此外,它还与氟硫酸发生反应,以获得赛勒诺基氟化物.

MSDS等安全信息

GHS符号GHS05,GHS06,GHS08,GHS09
危险类别Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]: | TOXIC and/or CORROSIVE; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause environmental contamination. (ERG, 2024) | · TOXIC and/or CORROSIVE; inhalation, ingestion or skin contact with material may cause severe injury or death. | · Contact with molten substance may cause severe burns to skin and eyes. | · Avoid any skin contact. | · Fire may produce irritating, corrosive and/or toxic gases. | · Runoff from fire control or dilution water may be corrosive and/or toxic and cause environmental contamination.
警示词Danger
危险描述H301+H331-H315-H318-H373-H410
防范说明P273-P280-P301+P310+P330-P304+P340+P311-P305+P351+P338+P310-P314
危险等级8
UN编号UN 3264 8/PG 1
危险品标志T,N
包装等级I
安全声明23-26-36/37/39-45-61-60-28-20/21-16
危险类别码23/24/25-34-50/53-33-23/25-41-38
WGK Germany2

上下游产品

water selenium trioxide selenium ozoneselenium tetrachloride osmium(VIII) oxide selenium(IV) oxide selenious acid

合成工艺路线路线简述

硒脲酸置于br2体系中,用水作为反应溶剂,化学反应生成硒酸
参考文献:Gmelin Handbuch Der Anorganischen Chemie,Gmelin Handbook: Se: Mvol.B,36,Page 76-78
标题:Gmelin Handbuch Der Anorganischen Chemie,Gmelin Handbook: Se: Mvol.B,36,Page 76-78