乙酸镧,917-70-4，生产厂家，价格-洛克化工网移动版

乙酸镧

中文名称：: 乙酸镧

中文别名：: 醋酸镧;
乙酸鑭;
乙酸镧(1.5水)

英文名称：: Acetic acid,lanthanum(3+) salt (3:1)

英文别名：: Acetic acid, lanthanum(3+) salt (3:1);
Acetic acid, lanthanum(3+) salt (8CI,9CI);
Lanthanum acetate (6CI,7CI);
Lanthanum acetate (La(OAc)3);
Lanthanum triacetate;
Lanthanum(3+) acetate;
Lanthanum(III) acetate

CAS No.：: 917-70-4

分子式：: C₂H₄O₂.1/3La

分子量：: 316.04

精确分子量：: 318.96975

PSA：: 37.30000

EINECS：: 213-034-8

InChI：: InChI=1/3C2H4O2.La/c3*1-2(3)4;/h3*1H3,(H,3,4);/q;;;+3/p-33

分子结构式：

SDS：: 查看

乙酸镧制备方法及用途

制备方法

1.取5g氧化镧加至盛有200mL醋酸酐的500mL圆底烧瓶中,得到悬浮液。加热,生成的产物沉积于容器底部,继续回流至反应结束,约需6～10h。将产物取出置于装有固体氢氧化钾和无水氯化钙的真空干燥器中,干燥两天后,再将产物置于真空干燥枪[阿布得哈顿(Abder halden)干燥装置]中,于100℃干燥。 2.取10g氧化镧溶于500mL 50%醋酸溶液中,用蒸气浴加热。通常氧化镧可完全溶解,若有少量氧化物残留在容器底部,则需过滤。将所得清液置于75℃水浴上加热,以除去大部分溶剂。溶液冷却后析出晶体。滤集晶体,将其置于装有粒状氢氧化钠及高氯酸镁的真空干燥器中,抽真空进行干燥,得到水合醋酸镧。可用下述A法或B法除去结晶水。 A法:将水合醋酸镧(其结晶水数目未经测定)。在150℃于真空条件下加热至恒重,得到无水醋酸镧。 B法:取10g醋酸镧水合物,放至500mL圆底烧瓶中,加入干燥的DMF(N,N′-二甲基甲酰胺)100mL,振摇使醋酸镧尽可能溶解于DMF中(醋酸镧较难溶解)。然后加入无水苯150mL,精馏除去苯水共沸物,生成的La(CH3COO)3·DMF析出。滤集晶体,用乙醚洗涤。放至置有无水氯化钙和五氧化二磷的真空保干器中保存。最后将晶体置于阿布得哈顿干燥装置中在210℃下加热(可用萘作热浴),以除去DMF,得到无水醋酸镧。

合成制备方法

1.取5g氧化镧加至盛有200mL醋酸酐的500mL圆底烧瓶中，得到悬浮液。加热，生成的产物沉积于容器底部，继续回流至反应结束，约需6～10h。将产物取出置于装有固体氢氧化钾和无水氯化钙的真空干燥器中，干燥两天后，再将产物置于真空干燥枪［阿布得哈顿（Abder halden）干燥装置］中，于100℃干燥。

2.取10g氧化镧溶于500mL 50%醋酸溶液中，用蒸气浴加热。通常氧化镧可完全溶解，若有少量氧化物残留在容器底部，则需过滤。将所得清液置于75℃水浴上加热，以除去大部分溶剂。溶液冷却后析出晶体。滤集晶体，将其置于装有粒状氢氧化钠及高氯酸镁的真空干燥器中，抽真空进行干燥，得到水合醋酸镧。可用下述A法或B法除去结晶水。

A法：将水合醋酸镧（其结晶水数目未经测定）。在150℃于真空条件下加热至恒重，得到无水醋酸镧。

B法：取10g醋酸镧水合物，放至500mL圆底烧瓶中，加入干燥的DMF（N，N′-二甲基甲酰胺）100mL，振摇使醋酸镧尽可能溶解于DMF中（醋酸镧较难溶解）。然后加入无水苯150mL，精馏除去苯水共沸物，生成的La(CH3COO)3·DMF析出。滤集晶体，用乙醚洗涤。放至置有无水氯化钙和五氧化二磷的真空保干器中保存。最后将晶体置于阿布得哈顿干燥装置中在210℃下加热（可用萘作热浴），以除去DMF，得到无水醋酸镧。

用途简介

乙酸镧物化性质

外观与性状：: 白色固体
密度：: 1.64
熔点：: 110ºC
沸点：: 117.1ºC at 760 mmHg
稳定性相关：: 溶于水，18℃时，100mL水中可溶解无水物20.43g。溶于苯。加热至760℃，分解为氧化镧。一水或1.5水合物均为无色或白色晶体，溶于水。La（CH3COO）3·DMF易溶于水，不溶于乙醚，难溶或不溶于冷DMF中，慢慢冷却得到大结晶。加热至210℃失去DMF。
其它信息：: 一、物性数据
1.       性状：无色或白色结晶，具吸湿性。
2.       密度（g/mL,25/4℃）：不确定
3.       相对蒸汽密度（g/mL,空气=1）：不确定
4.       熔点（ºC）：不确定
5.       沸点（ºC,常压）：不确定
6.       沸点（ºC,5.2kPa）：不确定
7.       折射率：不确定
8.       闪点（ºC）：不确定
9.       比旋光度（ºC）：不确定
10.    自燃点或引燃温度（ºC）不确定
11.    蒸气压（kPa,25ºC）：不确定
12.    饱和蒸气压（kPa,60ºC）：不确定
13.    燃烧热（KJ/mol）：不确定
14.    临界温度（ºC）：不确定
15.    临界压力（KPa）：不确定
16.    油水（辛醇/水）分配系数的对数值：不确定
17.    爆炸上限（%,V/V）：不确定
18.    爆炸下限（%,V/V）：不确定
19.    溶解性：溶于水。

乙酸镧毒理性

CHEMICAL IDENTIFICATION

RTECS NUMBER :: AI5075000

CHEMICAL NAME :: Acetic acid, lanthanum(3+) salt

CAS REGISTRY NUMBER :: 917-70-4

LAST UPDATED :: 199701

DATA ITEMS CITED :: 6

MOLECULAR FORMULA :: C2-H4-O2.1/3La

MOLECULAR WEIGHT :: 1032.43

WISWESSER LINE NOTATION :: OV1 & #-LA-

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 10 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 475 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 3500 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Skin and Appendages - dermatitis, other (after systemic exposure)

MUTATION DATA

TYPE OF TEST :: DNA adduct

TEST SYSTEM :: Bacteria - Escherichia coli

DOSE/DURATION :: 100 umol/L

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 89,95,1981 *** REVIEWS *** TOXICOLOGY REVIEW JPMSAE Journal of Pharmaceutical Sciences. (American Pharmaceutical Assoc., 2215 Constitution Ave., NW, Washington, DC 20037) V.50- 1961- Volume(issue)/page/year: 54,663,1965

毒理学数据：

急性数据：大鼠经口LD50：10 gm/kg；

大鼠腹腔LD50：475 mg/kg；

小鼠皮下LD50：3500 mg/kg；

致突变数据

DNA测试：大肠杆菌100 umol/L

乙酸镧 MSDS

Section 1. Chemical Product and Company Identification
    Lanthanum acetate        Catalog
    Common Name/
    Number(s).
    Trade Name
    CAS#        917-70-4
    Manufacturer
    RTECS        AI5075000
    SPECTRUM CHEMICAL MFG. CORP.
    TSCA        TSCA 8(b) inventory:
    Lanthanum acetate
    Commercial Name(s)        Not available.
    CI# Not available.
    Synonym        Not available.
    IN CASE OF EMERGENCY
    Not available.
    Chemical Name
    Chemical Family        Not available.        CALL (310) 516-8000
    La(OOCCH3)3.1-1/2H20
    Chemical Formula
    SPECTRUM CHEMICAL MFG. CORP.

Section 2.Composition and Information on Ingredients
    Exposure Limits
    TWA (mg/m3)        STEL (mg/m3) CEIL (mg/m3)
    Name        CAS #        % by Weight
    1) Lanthanum acetate        917-70-4        100
    Toxicological Data        Lanthanum acetate:
    on Ingredients        ORAL (LD50):        Acute: 10000 mg/kg [Rat].

Section 3. Hazards Identification
    Potential Acute Health Effects Hazardous in case of skin contact (irritant), of eye contact (irritant), of ingestion, of inhalation.
    Potential Chronic Health        CARCINOGENIC EFFECTS: Not available.
    MUTAGENIC EFFECTS: Not available.
    Effects
    TERATOGENIC EFFECTS: Not available.
    DEVELOPMENTAL TOXICITY: Not available.
    Repeated or prolonged exposure is not known to aggravate medical condition.
    Lanthanum acetate

Section 4. First Aid Measures
    Eye Contact        Check for and remove any contact lenses. Do not use an eye ointment. Seek medical attention.
    Skin Contact        After contact with skin, wash immediately with plenty of water. Gently and thoroughly wash the contaminated skin
    with running water and non-abrasive soap. Be particularly careful to clean folds, crevices, creases and groin.
    Cover the irritated skin with an emollient. If irritation persists, seek medical attention. Wash contaminated
    clothing before reusing.
    Serious Skin Contact        Wash with a disinfectant soap and cover the contaminated skin with an anti-bacterial cream. Seek medical
    attention.
    Inhalation        Allow the victim to rest in a well ventilated area. Seek immediate medical attention.
    Serious Inhalation        Not available.
    Ingestion        Do not induce vomiting. Loosen tight clothing such as a collar, tie, belt or waistband. If the victim is not
    breathing, perform mouth-to-mouth resuscitation. Seek immediate medical attention.
    Serious Ingestion        Not available.

Section 5. Fire and Explosion Data
    Flammability of the Product May be combustible at high temperature.
    Auto-Ignition Temperature Not available.
    Flash Points        Not available.
    Flammable Limits        Not available.
    These products are carbon oxides (CO, CO2).
    Products of Combustion
    Fire Hazards in Presence of Not available.
    Various Substances
    Explosion Hazards in Presence Risks of explosion of the product in presence of mechanical impact: Not available.
    of Various Substances        Risks of explosion of the product in presence of static discharge: Not available.
    Fire Fighting Media        SMALL FIRE: Use DRY chemical powder.
    and Instructions        LARGE FIRE: Use water spray, fog or foam. Do not use water jet.
    Special Remarks on        Not available.
    Fire Hazards
    Special Remarks on Explosion Not available.
    Hazards

Section 6. Accidental Release Measures
    Small Spill        Use appropriate tools to put the spilled solid in a convenient waste disposal container. Finish cleaning by
    spreading water on the contaminated surface and dispose of according to local and regional authority
    requirements.
    Large Spill
    Use a shovel to put the material into a convenient waste disposal container. Finish cleaning by spreading water
    on the contaminated surface and allow to evacuate through the sanitary system.
    Lanthanum acetate

Section 7. Handling and Storage
    Precautions        Keep away from heat. Keep away from sources of ignition. Empty containers pose a fire risk, evaporate the
    residue under a fume hood. Ground all equipment containing material. Do not ingest. Do not breathe dust.
    Wear suitable protective clothing In case of insufficient ventilation, wear suitable respiratory equipment If
    ingested, seek medical advice immediately and show the container or the label. Avoid contact with skin and eyes
    Storage        Keep container dry. Keep in a cool place. Ground all equipment containing material. Keep container tightly
    closed. Keep in a cool, well-ventilated place. Combustible materials should be stored away from extreme heat
    and away from strong oxidizing agents.

Section 8. Exposure Controls/Personal Protection
    Engineering Controls        Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below
    recommended exposure limits. If user operations generate dust, fume or mist, use ventilation to keep exposure to
    airborne contaminants below the exposure limit.
    Personal Protection        Splash goggles. Lab coat. Dust respirator. Be sure to use an approved/certified respirator or equivalent.
    Gloves.
    Personal Protection in Case of Splash goggles. Full suit. Dust respirator. Boots. Gloves. A self contained breathing apparatus should be used
    a Large Spill        to avoid inhalation of the product. Suggested protective clothing might not be sufficient; consult a specialist
    BEFORE handling this product.
    Exposure Limits        Not available.

Section 9. Physical and Chemical Properties
    Physical state and appearance Solid.        Odor        Not available.
    Taste        Not available.
    343.07 g/mole
    Molecular Weight
    Color        Not available.
    pH (1% soln/water)        Not available.
    Boiling Point        Not available.
    Melting Point        Decomposes.
    Critical Temperature        Not available.
    Specific Gravity        Not available.
    Not applicable.
    Vapor Pressure
    Vapor Density        Not available.
    Volatility        Not available.
    Odor Threshold        Not available.
    Water/Oil Dist. Coeff.        Not available.
    Not available.
    Ionicity (in Water)
    Dispersion Properties        Not available.
    Not available.
    Solubility

Section 10. Stability and Reactivity Data
    The product is stable.
    Stability
    Instability Temperature        Not available.
    Not available.
    Conditions of Instability
    Incompatibility with various Not available.
    substances
    Lanthanum acetate
    Corrosivity        Non-corrosive in presence of glass.
    Special Remarks on        Not available.
    Reactivity
    Special Remarks on        Not available.
    Corrosivity
    Polymerization        No.

Section 11. Toxicological Information
    Routes of Entry        Eye contact. Inhalation. Ingestion.
    Toxicity to Animals        Acute oral toxicity (LD50): 10000 mg/kg [Rat].
    Chronic Effects on Humans Not available.
    Other Toxic Effects on        Hazardous in case of skin contact (irritant), of ingestion, of inhalation.
    Humans
    Special Remarks on        Not available.
    Toxicity to Animals
    Special Remarks on        Not available.
    Chronic Effects on Humans
    Special Remarks on other        Not available.
    Toxic Effects on Humans

Section 12. Ecological Information
    Ecotoxicity        Not available.
    BOD5 and COD        Not available.
    Products of Biodegradation        Possibly hazardous short term degradation products are not likely. However, long term degradation products may
    arise.
    Toxicity of the Products        The products of degradation are more toxic.
    of Biodegradation
    Special Remarks on the        Not available.
    Products of Biodegradation

Section 13. Disposal Considerations
Waste Disposal

Section 14. Transport Information
    DOT Classification        Not a DOT controlled material (United States).
    Identification        Not applicable.
    Special Provisions for        Not applicable.
    Transport
    Lanthanum acetate
    DOT (Pictograms)

Section 15. Other Regulatory Information and Pictograms
    TSCA 8(b) inventory: Lanthanum acetate
    Federal and State
    Regulations
    California
    Proposition 65
    Warnings
    Other Regulations        Not available..
    WHMIS (Canada) Not controlled under WHMIS (Canada).
    Other Classifications
    DSCL (EEC)        R36/38- Irritating to eyes and skin.
    Health Hazard
    HMIS (U.S.A.)        2 National Fire Protection
    1 Flammability
    1 Association (U.S.A.)
    Fire Hazard
    2 0 Reactivity
    Health
    Reactivity
    0
    Specific hazard
    Personal Protection
    E
    WHMIS (Canada)
    (Pictograms)
    DSCL (Europe)
    (Pictograms)
    TDG (Canada)
    (Pictograms)
    ADR (Europe)
    (Pictograms)
    Protective Equipment
    Gloves.
    Lab coat.
    Dust respirator. Be sure to use an
    approved/certified respirator or
    equivalent.
    Lanthanum acetate

SECTION 16 - ADDITIONAL INFORMATION
N/A

乙酸镧分子结构与计算化学数据

计算化学数据

1.疏水参数计算参考值（XlogP）:无

2.氢键供体数量:0

3.氢键受体数量:6

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120

7.重原子数量:13

8.表面电荷:0

9.复杂度:25.5

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:4

乙酸镧上游产品

氯化镧乙酸乙酸钠氯化镧乙酸乙酸钠

乙酸镧

乙酸镧制备方法及用途