水合硫酸镧

水合硫酸镧 基本信息
CAS号 57804-25-8 分子式 H2O4S.xH2O.2/3La
分子量 626.08517 精确质量  625.74655
PSA  265.92000 LogP  -0.77160

基本信息 展开↓

CAS号:
57804-25-8
分子式:
H2O4S.xH2O.2/3La
分子量:
626.08517
中文名称:
水合硫酸镧
英文名称:
Sulfuric acid, lanthanum(3+) salt (3:2), hydrate (9CI)
中文别名:
水合硫酸镧;
硫酸镧(III) 合物;
硫酸镧(III)水合物
英文别名:
Sulfuric acid, lanthanum(3+) salt (3:2), hydrate (9CI);
Lanthanum sulfate (La2(SO4)3) hydrate;
Lanthanum sulfate hydrate
精确分子量/精确质量:
625.74655
极性分子表面积/PSA:
265.92000
油水分配系数/LogP:

LogP值指的是某物质在正辛醇/水两相体系中的分配系数的对数值,反映了物质在油水两相中的分配情况。其中、LogP值越大,说明该物质越亲油;反之,LogP值越小,则说明该物质越亲水。
贝尔斯坦号/MDL:
MFCD00011070
EINECS:
233-239-6

生产制备方法及用途展开↓

制备方法


将高纯La2O溶于稀盐酸中,向该溶液中加入比反应计量稍多的稀硫酸,然后向此溶液中加入大量的95%的乙醇,即可沉淀出八水硫酸钇的结晶,滤出沉淀并用95%的乙醇洗涤至无氯离子和游离酸,在空气中凉干。

合成制备方法


将高纯La2O溶于稀盐酸中,向该溶液中加入比反应计量稍多的稀硫酸,然后向此溶液中加入大量的95%的乙醇,即可沉淀出八水硫酸钇的结晶,滤出沉淀并用95%的乙醇洗涤至无氯离子和游离酸,在空气中凉干。

用途简介


科研试剂,生化研究

物化性质展开↓

密度:
2.821
沸点:
330ºC at 760mmHg
存储条件/存储方法:

储藏在密封的储藏器内,并放置阴凉,干爽的地方保存

稳定性相关:

避免接触氧化物,水分

其它信息:

1.       性状:无气味的白色粉末

2.       密度(g/mL): 2.821

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, 10mmHg):未确定

6.       沸点(ºC,5.2kPa):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):不可燃

11.    蒸气压(kPa,25ºC):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:微溶于水

安全信息展开↓

危险类别码:
36/37/38
安全说明:
26-36
安全标志:
S26:万一接触眼睛,立即使用大量清水冲洗并送医诊治。
S36:穿戴合适的防护服装。
危险标志:
Xi

毒理性展开↓

生态数据:

对水是稍微危害的

MSDS 展开↓


Section 1: Product Identification
   Chemical Name:       Lanthanum (III) sulfate hydrate (99.9%-La) (REO)    
   CAS Registry Number:       57804-25-8    
   Formula:       La2(SO4)3.XH2O    
   EINECS Number:       233-239-6    
   Chemical Family:       metal sulfate    
   Synonym:       none    

Section 2: Composition and Information on Ingredients
   Ingredient       CAS Number       Percent       ACGIH (TWA)       OSHA (PEL)    
   Title Compound       57804-25-8       100%       no data       no data    

Section 3: Hazards Identification
   Emergency Overview:       Irritating to eyes, skin and respiratory tract. May be harmful if swallowed    
   Primary Routes of Exposure:       Ingestion    
   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:       No information available on long-term chronic effects.    
   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 and       If involved in a fire this material may emit toxic fumes of sulfur oxides.    
   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 xtl.    
   Molecular Weight:       566    
   Melting Point:       dec.    
   Boiling Point:       no data    
   Vapor Pressure:       no data    
   Specific Gravity:       2.821    
   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:       none    
   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
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