12209-98-2

• 常用中文名：三水锡酸钠
• 常用英文名：Sodium Stannate Trihydrate
• CAS号：12209-98-2
• 分子式：H₆Na₂O₆Sn
• 分子量：266.72500
• 相关类别： 无机化工 无机盐 金属氧化物酸盐、金属过氧化物酸盐
• 发布时间：2018-03-26 08:00:00
• 更新时间：2024-01-04 23:44:21
• 【用途一】
  用作织物防火剂和陶瓷工业的媒染剂
  【用途二】
  用作媒染剂，纺织品的防火剂、增重剂，以及制造陶瓷、玻璃和用于镀锡等
  【用途三】
  本品是碱性镀锡的主盐，它与氢氧化钠组成的络盐，溶解在镀锡溶液中，当溶液通电时，锡包含在阴络离子中，直接在阳极上还原碱性镀锡溶液。一般用量在75～90 kg/L，还可用于氰化物镀铜锡合金和焦磷酸盐，锡酸盐，铜锡合金的电镀辅助主盐。本品在印染行业作媒染剂，沉淀色素及陶瓷、玻璃和防火织物。

名称

• 中文名: 三水锡(IV) 酸钠
• 英文名: dioxotin,sodium,trihydrate
• 中文别名: 三水锡酸钠; 锡酸钠,三水合物
• 英文别名: MFCD00150189; EINECS 235-030-5; Stannate (SnO32-),disodium,trihydrate (9CI); Sodium tin(IV) oxide trihydrate; Sodium stannate hydrate; Sodium Stannate Trihydrate

物化性质

• 熔点: 140°C (dec.)
• 分子式: H₆Na₂O₆Sn
• 分子量: 266.72500
• 精确质量: 267.89800
• PSA: 90.88000
• 外观性状: 白色到灰白色 粉末
• 储存条件:

  常温密闭避光，通风干燥处

• 稳定性:

  140℃失水成为无水锡酸钠。易水解生成。锡酸xSnO₂·yH₂O，放置加热会变成β锡酸。

• 分子结构:

  1、摩尔折射率：无可用的

  2、摩尔体积（cm³/mol）：无可用的

  3、等张比容（90.2K）：无可用的

  4、表面张力（dyne/cm）：无可用的

  5、介电常数：无可用的

  6、极化率（10^-24cm³）：无可用的

  7、单一同位素质量：267.898177 Da

  8、标称质量：268 Da

  9、平均质量：266.7336 Da

• 计算化学:

  1.疏水参数计算参考值（XlogP）:无

  2.氢键供体数量:3

  3.氢键受体数量:5

  4.可旋转化学键数量:0

  5.互变异构体数量:无

  6.拓扑分子极性表面积37.1

  7.重原子数量:7

  8.表面电荷:0

  9.复杂度:18.3

  10.同位素原子数量:0

  11.确定原子立构中心数量:0

  12.不确定原子立构中心数量:0

  13.确定化学键立构中心数量:0

  14.不确定化学键立构中心数量:0

  15.共价键单元数量:5

• 更多:

  1. 性状：白色或无色结晶。

  2. 密度（g/mL,20℃）：未确定

  3. 相对蒸汽密度（g/mL,空气=1）：未确定

  4. 熔点（ºC）：未确定

  5. 沸点（ºC,常压）：未确定

  6. 沸点（ºC，1mmHg）：未确定

  7. 折射率：未确定

  8. 闪点（ºC）：未确定

  9. 比旋光度（º）：未确定

  10. 自燃点或引燃温度（ºC）：未确定

  11. 蒸气压（20ºC）：未确定

  12. 饱和蒸气压（kPa,60ºC）：未确定

  13. 燃烧热（KJ/mol）：未确定

  14. 临界温度（ºC）：未确定

  15. 临界压力（KPa）：未确定

  16. 油水（辛醇/水）分配系数的对数值：未确定

  17. 爆炸上限（%,V/V）：未确定

  18. 爆炸下限（%,V/V）：未确定

  19. 溶解性：溶于水，不溶于乙醇和丙酮。

MSDS

Section 1: Product Identification Chemical Name:Sodium stannate trihydrate, min. 95% CAS Registry Number:12209-98-2 Formula:Na2SnO3.3H2O EINECS Number:none Chemical Family:inorganic compound Synonym:none Section 2: Composition and Information on Ingredients IngredientCAS NumberPercentACGIH (TWA)OSHA (PEL) Title Compound12209-98-2100%2mg/m3 (as Sn)2mg/m3 (as Sn) Section 3: Hazards Identification Emergency Overview:Irritating to eyes, skin and respiratory tract. May be harmful if swallowed Primary Routes of Exposure:Ingestion, inhalation Eye Contact:Causes slight to mild irritation of the eyes. Skin Contact:Causes slight to mild irritation of the skin. Inhalation:Irritating to the nose, mucous membranes and respiratory tract. Ingestion:No information on the physiological effects of ingestion. Acute Health Affects:Irritating to skin, eyes and respiratory tract. Chronic Health Affects:Prolonged exposure to dust of tin compounds may result in benign pneumoconiosis. NTP:No IARC:No OSHA:No SECTION 4: First Aid Measures Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need Eye Exposure: assistance in keeping their eye lids open. Get immediate medical attention. Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if Skin Exposure: irritation persists. Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty Inhalation: in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance. Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce Ingestion: vomiting only if directed by medical personnel. SECTION 5: Fire Fighting Measures Flash Point:not applicable Autoignition Temperature:none Explosion Limits:none Extinguishing Medium:none required If involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure self-contained Special Fire Fighting Procedures: breathing apparatus and full protective clothing. Hazardous Combustion andNone Decomposion Products: Unusual Fire or Explosion Hazards: No unusual fire or explosion hazards. SECTION 6: Accidental Release Measures Spill and Leak Procedures:Small spills can be mixed with powdered sodium carbonate or ground limestone and swept up. SECTION 7: Handling and Storage Handling and Storage:Store material in a tightly sealed bottle away from moisture. SECTION 8: Exposure Controls and Personal Protection Eye Protection:Always wear approved safety glasses when handling a chemical substance in the laboratory. Skin Protection:Wear appropriate chemical resistant gloves and protective clothing. Ventilation:If possible, handle the material in an efficient fume hood. In the absence of adequate ventilation a respirator should be worn. The use of a respiratory requires a Respirator: Respirator Protection Program to be in compliance with 29 CFR 1910.134. Ventilation:If possible, handle the material in an efficient fume hood. Additional Protection:No additional protection required. SECTION 9: Physical and Chemical Properties Color and Form:white pwdr. Molecular Weight:212.68 (266.71) Melting Point:no data Boiling Point:no data Vapor Pressure:no data Specific Gravity:no data Odor:none Solubility in Water:Soluble SECTION 10: Stability and Reactivity Stability:air and moisture stable Hazardous Polymerization:no hazardous polymerization Conditions to Avoid:none Incompatibility:Active metals Decomposition Products:none SECTION 11: Toxicological Information RTECS Data:No information available in the RTECS files. Carcinogenic Effects:no data Mutagenic Effects:no data Tetratogenic Effects:no data SECTION 12: Ecological Information Ecological Information:No information available SECTION 13: Disposal Considerations Disposal:Dispose of according to local, state and federal regulations. SECTION 14: Transportation Shipping Name (CFR):Non-hazardous Hazard Class (CFR):NA Additional Hazard Class (CFR):NA Packaging Group (CFR):NA UN ID Number (CFR):NA Shipping Name (IATA):Non-hazardous Hazard Class (IATA):NA Additional Hazard Class (IATA):NA Packaging Group (IATA):NA UN ID Number (IATA):NA SECTION 15: Regulatory Information TSCA:Not listed in the TSCA inventory. SARA (Title 313):Title compound not listed Second Ingredient:none SECTION 16 - ADDITIONAL INFORMATION N/A

毒性和生态

毒理学数据: 主要的刺激性影响： 在皮肤上面：刺激皮肤和粘膜 在眼睛上面：刺激的影响 致敏作用：没有已知的敏化现象 生态学数据: 通常对水体是稍微有害的，不要将未稀释或大量产品接触地下水，水道或污水系统，未经政府许可勿将材料排入周围环境。

安全

• 个人防护装备: Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
• 危害码 (欧洲): Xn
• 安全声明 (欧洲): S22-S24/25
• 危险品运输编码: NONH for all modes of transport
• WGK德国: 3
• 海关编码: 2841900090

制备

1.将446 kg锡（99.5%），320 kg苛性钠(90%），105 硝酸钠（95%）依次加入反应锅中，加热至300 ℃，当温度升至800 ℃时停止加热。继续搅拌待物料发火，经0.5 h的发火后，再冷却出锅。将粗品加水溶解，加硫化钠除铅，加过氧化氢除铁。常常后进行真空过滤，浓缩，离心脱水，干燥，粉碎得成品。反应式为：

海关

海关编码	2841900090