12058-18-3

12058-18-3结构式
12058-18-3结构式

中文名 硒化钼
英文名 bis(selanylidene)molybdenum
中文别名 二硒化钼
英文别名 diselenoxomolybdenum
Molybdenum diselenide
EINECS 235-027-9
Molybdenum selenide
diselanylidenemolybdenum
Molybdenum(IV) selenide
Molybdenum selenide (MoSe2)
MFCD00014216
密度 6 g/cm3
熔点 >1200ºC
分子式 H2MoSe2
分子量 255.89600
精确质量 259.75400
外观性状 结晶固体
储存条件

常温密闭,阴凉通风干燥

稳定性

常温常压下稳定

避免光,明火,高温。硒化钼MoSe2为灰色粉末,具有层状结构,具有半导体性质。

水溶解性 Insoluble in water.
计算化学

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:0

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0

7.重原子数量:3

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:1

更多

1. 性状:灰色粉末

2. 密度(g/mL,25℃):6.0

3. 相对蒸汽密度(g/mL,空气=1):未确定

4. 熔点(ºC):1200

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:未确定


Section 1: Product Identification
Chemical Name:Molybdenum (IV) selenide (99.9%-Mo)
CAS Registry Number:12058-18-3
Formula:MoSe2
EINECS Number:235-027-9
Chemical Family:metal chalcogenides
Synonym:Molybdenum diselenide

Section 2: Composition and Information on Ingredients
IngredientCAS NumberPercentACGIH (TWA)OSHA (PEL)
Title compound12058-18-3100%10mg/m3( as Mo)15mg/m3 (as Mo)

Section 3: Hazards Identification
Exposure to selenium containing dusts can cause shortness of breath, garlic odor, chills and headache.
Emergency Overview:
Chronic exposure may result in nervous disorders, dermatitis, liver and kidney disease.
Primary Routes of Exposure:Ingestion, inhalation.
Eye Contact:May cause mild to moderate irritation of the eyes.
Skin Contact:May cause irritation of the skin, and upon repeated contact, dermatitis.
Inhalation:Dust may cause garlic odor, shortness of breath, chills, headache, and delayed pulmonary edema.
Ingestion:Ingestion may lead to nausea, vomiting, bloody diarrhea, weakness and chronic diseases.
May be irritating to skin, eyes, and respiratory tract and cause nausea, vomiting, bloody diarrhea, weakness,
Acute Health Affects:
chills, headache, and delayed pulmonary edema.
Prolonged exposure to selenium compounds may cause dermatitis, diarrhea, liver damage, nervous disorders,
Chronic Health Affects:
lameness and loss of vitality.
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 in
Inhalation:
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:no data
Autoignition Temperature:no data
Explosion Limits:no data
Extinguishing Medium:carbon dioxide, dry powder or foam.
If involved in a fire, fire fighters should be equipped with 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 hydrogen selenide.
Decomposion Products:
Unusual Fire or Explosion Hazards: No unusual fire or explosion hazard.

SECTION 6: Accidental Release Measures
Small spills can be mixed with vermiculite, sodium carbonate or other suitable non combustible adsorbent and
Spill and Leak Procedures:
swept up.

SECTION 7: Handling and Storage
Handling and Storage:No special precautions needed in handling and storage..

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 protective clothing and gloves. Consult with glove manufacturer to determine the proper type of glove.
Ventilation:Material may form a fine dust. If possible, handle the material in an efficient fume hood.
If ventilation is not available a respirator should be worn. The use of respirators requires a Respiratory
Respirator:
Protection Program to be in compliance with 29 CFR 1910.134.
Ventilation:Material may form a fine dust. 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:-325 mesh gray powder
Molecular Weight:253.87
Melting Point:>1200°
Boiling Point:no data
Vapor Pressure:no data
Specific Gravity:6
Odor:none
Solubility in Water:insoluble

SECTION 10: Stability and Reactivity
Stability:air and moisture stable.
Hazardous Polymerization:No hazardous polymerization.
Conditions to Avoid:Mineral acids may form toxic hydrogen selenide vapors
Incompatibility:mineral acids
Decomposition Products:selenium oxide and molybdenum oxide

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:Listed in the TSCA inventory.
SARA (Title 313):See category Code N725 for reporting.
Second Ingredient:none


SECTION 16 - ADDITIONAL INFORMATION
N/A

生态学数据:

通常对水体是极其有害的,即使小量产品也不能接触地下水,水道或污水系统

符号 GHS06 GHS08 GHS09
GHS06, GHS08, GHS09
信号词 Danger
危害声明 H301 + H331-H373-H410
警示性声明 Missing Phrase - N15.00950417-P260-P304 + P340 + P312-P403 + P233
危害码 (欧洲) T,N
风险声明 (欧洲) 23/25-33-50/53
安全声明 (欧洲) 20/21-28-45-60-61
危险品运输编码 UN3283
包装等级 III
危险类别 6.1

将Mo与Se按摩尔比1∶2混合, 在800~1150℃温度下钼和硒反应,主要形成MoSe2。

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