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57804-25-8生产厂家

57804-25-8价格

57804-25-8

57804-25-8结构式
57804-25-8结构式

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中文名 水合硫酸镧
英文名 Lanthanum(III) Sulfate Hydrate
中文别名 硫酸镧(III) 合物
硫酸镧(III)水合物
英文别名 MFCD00011070
Lanthanum sulfate (2:3)
EINECS 233-239-6
lanthanum sulfate
lanthanum(3+),trisulfate,octahydrate
密度 2.821
沸点 330ºC at 760mmHg
熔点 white heat
分子式 La2O12S3
分子量 565.999
精确质量 565.667908
PSA 265.92000
外观性状 Powder | White
储存条件

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

避免接触氧化物,水分

水溶解性 Slightly soluble in water.
更多

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


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
IngredientCAS NumberPercentACGIH (TWA)OSHA (PEL)
Title Compound57804-25-8100%no datano 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 andIf 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

生态学数据:

对水是稍微危害的

危害码 (欧洲) Xi
风险声明 (欧洲) 36/37/38
安全声明 (欧洲) 26-36
WGK德国 3

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。