12027-70-2 六羟基合锡(IV)酸钠

该物质具有皮肤腐蚀（1级，45.5%）、皮肤刺激（2级，52.5%）、严重眼损伤（1级，45.5%）、严重眼刺激（2级，52.5%）、呼吸道刺激（51.5%）、水生环境危害（长期，45.5%）等危害。需采取P260、P261等预防措施，避免皮肤、眼睛接触及吸入。WGK Germany为3，TSCA已列出。

EPA Safer Chemical Functional Use Classes -> Oxidants and Oxidant Stabilizers; Safer Chemical Classes -> Yellow triangle - The chemical has met Safer Choice Criteria for its functional ingredient-class, but has some hazard profile issues; 2019: <1,000,000 lb; 2018: <1,000,000 lb; 2017: <1,000,000 lb; 2016: <1,000,000 lb; Stannate (Sn(OH)62-), sodium (1:2), (OC-6-11)-: ACTIVE

Oxidizing/reducing agents; Plating agents and surface treating agents; Paint and Coating Manufacturing; All Other Basic Inorganic Chemical Manufacturing

• 步骤: 1. 由SnCl4溶液与NaOH反应制得锡酸沉淀；2. 向锡酸沉淀中加入过量氢氧化钠，搅拌使固体溶解于少量水中；3. 滤出清液，置于干燥器浓硫酸上方脱水浓缩；4. 析出结晶后，适度真空下抽滤，用无水乙醇洗涤至滤液不显碱性；5. 再用乙醚洗涤，真空干燥。