silver sulfide

物化性质

外观与性状：

黑色立方体晶体

密度：

7.234 g/mL at 25 °C(lit.)

熔点：

845 °C(lit.)

存储条件/存储方法：

保持贮藏器密封

放入紧密的贮藏器内，储存在阴凉，干燥的地方

稳定性相关：

如果遵照规格使用和储存则不会分解

避免接触氧化物，酸。β-Ag2S为灰黑色正交晶体，相对密度7.326，在175℃转化为α-Ag2S；α-Ag2S为黑色立方晶体，相对密度7.317，熔点825℃。硫化银极难溶于水；几乎不溶于稀的非氧化性酸；不溶于氨水和氨盐溶液；但溶于碱金属氰化物溶液和硝酸；浓H2SO4能将Ag2S转化为硫酸银和硫。硫化银在室温和空气中是稳定的，但在真空中加热至350℃以上，则有丝状金属银生成。若直接在空气中加热，则硫化银易被氧化成硫酸银。

其它信息：

1.性状：浅灰黑色重质粉末。

2.密度（g/mL,25/4℃）：7.234

3.相对蒸汽密度（g/mL,空气=1）：未确定

4.熔点（ºC）：825

5.沸点（ºC,常压）：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）：未确定

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：不溶于水和氨水。溶于硝酸、硫酸和氰化碱溶液。

安全信息

外观与性状：

黑色立方体晶体

密度：

7.234 g/mL at 25 °C(lit.)

熔点：

845 °C(lit.)

存储条件/存储方法：

保持贮藏器密封

放入紧密的贮藏器内，储存在阴凉，干燥的地方

稳定性相关：

如果遵照规格使用和储存则不会分解

避免接触氧化物，酸。β-Ag2S为灰黑色正交晶体，相对密度7.326，在175℃转化为α-Ag2S；α-Ag2S为黑色立方晶体，相对密度7.317，熔点825℃。硫化银极难溶于水；几乎不溶于稀的非氧化性酸；不溶于氨水和氨盐溶液；但溶于碱金属氰化物溶液和硝酸；浓H2SO4能将Ag2S转化为硫酸银和硫。硫化银在室温和空气中是稳定的，但在真空中加热至350℃以上，则有丝状金属银生成。若直接在空气中加热，则硫化银易被氧化成硫酸银。

其它信息：

1.性状：浅灰黑色重质粉末。

2.密度（g/mL,25/4℃）：7.234

3.相对蒸汽密度（g/mL,空气=1）：未确定

4.熔点（ºC）：825

5.沸点（ºC,常压）：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）：未确定

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：不溶于水和氨水。溶于硝酸、硫酸和氰化碱溶液。

毒理性

毒理学数据：

有刺激性

生态数据：

通常来说对水是不危害的，若无政府许可，勿将材料排入周围环境

MSDS

Name:	Silver (I) sulfide 99.9% Material Safety Data Sheet
Synonym:	Non
CAS:	21548-73-2

Section 1 - Chemical Product   MSDS Name:Silver (I) sulfide 99.9% Material Safety Data Sheet
Synonym:Non
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS

CAS#	Chemical Name	content	EINECS#
21548-73-2	Silver sulfide	99.9	244-438-2

Hazard Symbols: None Listed.
Risk Phrases: None Listed.
Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Light sensitive.The toxicological properties of this material have not been fully investigated.
Potential Health Effects
Eye:
May cause eye irritation. No information regarding eye irritation and other potential effects was found.
Skin:
May cause skin irritation. No information regarding skin irritation and other potential effects was found.
Ingestion:
The toxicological properties of this substance have not been fully investigated.
Inhalation:
The toxicological properties of this substance have not been fully investigated.
Chronic:
No information found.
Section 4 - FIRST AID MEASURES
  Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Skin:
Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
Ingestion:
If victim is conscious and alert, give 2-4 cupfuls of milk or water.
Get medical aid immediately.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Notes to Physician:
Section 5 - FIRE FIGHTING MEASURES
  General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion.
Extinguishing Media:
Use agent most appropriate to extinguish fire.
Section 6 - ACCIDENTAL RELEASE MEASURES
  General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Clean up spills immediately, observing precautions in the Protective Equipment section.
Section 7 - HANDLING and STORAGE
  Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Storage:
Store in a cool, dry place. Keep container closed when not in use.
Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
  Engineering Controls:
Use process enclosure, local exhaust ventilation, or other engineering controls to control airborne levels.
Exposure Limits CAS# 21548-73-2: Japan: (listed as silver compounds): 0.01 mg/m3 OEL (as Ag) Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to minimize contact with skin.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
 
Physical State: Solid
Color: black
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 845 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density: 7.2340g/cm3
Molecular Formula: Ag2S
Molecular Weight: 247.80
Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
None reported.
Incompatibilities with Other Materials:
None reported..
Hazardous Decomposition Products:
Irritating and toxic fumes and gases.
Hazardous Polymerization: Has not been reported
Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 21548-73-2 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
Silver sulfide - Not listed by ACGIH, IARC, or NTP.
Section 12 - ECOLOGICAL INFORMATION
 
Section 13 - DISPOSAL CONSIDERATIONS
  Dispose of in a manner consistent with federal, state, and local regulations.
Section 14 - TRANSPORT INFORMATION
 
IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing group:
Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 21548-73-2: 0
Canada
CAS# 21548-73-2 is listed on Canada's DSL List.
CAS# 21548-73-2 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 21548-73-2 is listed on the TSCA inventory.

SECTION 16 - ADDITIONAL INFORMATION
N/A

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:1

3.氢键受体数量:1

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1

7.重原子数量:3

8.表面电荷:0

9.复杂度:2.8

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:3