硫化银 | 21548-73-2

• 物质功能分类: 无机化工 - 无机盐 - 胶态贵金属及其化合物
• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 过渡金属有机体
• 中文名称: 硫化银
• 中文别名: 硫化银(I)
• 英文名称: Silver silver sulfide
• 英文别名: silver;sulfanylidenesilver
• CAS: 21548-73-2
• 化学式: Ag2S
• 分子量: 247.8
• InChiKey: OCWNMDUAUUAHSJ-UHFFFAOYSA-N

物化性质

• 熔点：
  845 °C (lit.)
• 沸点：
  decomposes [HAW93]
• 密度：
  7.234 g/mL at 25 °C (lit.)
• 溶解度：
  溶于水。HCN，水溶液柠檬酸与KNO3。不溶于酸、碱、铵水溶液。
• 稳定性/保质期：

  如果遵照规格使用和储存，则不会分解。避免接触氧化物和酸。

  β-Ag2S是一种灰黑色正交晶体，相对密度为7.326，在175℃时会转化为α- ；而α- 则是一种黑色立方晶体，相对密度为7.317，熔点为825℃。硫化银极难溶于水，并且几乎不溶于稀的非氧化性酸；它也不溶于氨水和氨盐溶液；但在碱金属氰化物溶液或硝酸中会溶解；浓硫酸能够将硫化银转化为硫酸银和硫。

  在室温下，硫化银在空气中是稳定的；然而，在真空中加热至350℃以上时，则会产生丝状的金属银。若直接在空气中加热，硫化银容易被氧化成硫酸银。

计算性质

• 辛醇/水分配系数(LogP)：
  0.64
• 重原子数：
  3
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  32.1
• 氢给体数：
  0
• 氢受体数：
  1

安全信息

• TSCA：
  Yes
• 危险等级：
  9
• 危险品标志：
  Xi
• 安全说明：
  S26,S36
• 危险类别码：
  R36/37/38
• WGK Germany：
  3
• 海关编码：
  28432900
• 包装等级：
  III
• 危险类别：
  9
• 危险性防范说明：
  P201,P264,P280,P301+P330+P331,P312
• 危险品运输编号：
  3077
• 危险性描述：
  H302,H361,H372,H410

SDS

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

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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.

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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.

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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:

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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.

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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.

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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.

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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.

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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

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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

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Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 21548-73-2 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
Silver sulfide - Not listed by ACGIH, IARC, or NTP.

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Section 12 - ECOLOGICAL INFORMATION

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Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.

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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:

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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.

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SECTION 16 - ADDITIONAL INFORMATION
N/A

制备方法与用途

概述

硫化银有两种晶型。α-型：黑色立方系晶体或粉末，天然为辉银矿。相对密度7.317。高温时稳定，熔点825℃，温度更高会分解。几乎不溶于水，可溶于氰化钾溶液，难溶于稀硫酸、氨水及酸性硫酸钠溶液。在浓硫化钾或硫化钠溶液中生成红色晶体的双硫化物。

β-型：灰黑色斜方系晶体或粉末，天然为螺状硫银矿，相对密度7.326，不溶于水，能溶于氰化钾溶液、浓硫酸及硝酸。在硝酸中反应时会生成硝酸银和硫。175℃时会转变成α-型。

用途

用作分析试剂，可用于测定土壤中的硫、氧、溴及碘离子。还用于制造合金与陶器。

生产方法

1. 在90～100℃条件下，将氧化银(Ⅰ)与硫反应生成硫化银(Ⅰ)，若有水气存在时，过量的Ag2SO4也能被转化为硫化银(Ⅰ)。

2. 将硫代硫酸钠与氧化银(Ⅰ)或可溶性银盐（如硝酸银）反应，可以得到硫化银(Ⅰ)。

3. 将可溶性的银盐与可溶性的硫化物反应，也可制得硫化银(Ⅰ)。

反应信息

• 作为反应物：
  描述：

  6-Chloro-5,7-dioxa-6-arsa-dibenzo[a,c]cycloheptene 、 硫化银 以92%的产率得到
  参考文献：
  名称：

  ANDRAE K.; GEBEL W., Z. ANORG. UND ALLG. CHEM., 1979, 458, NO 11, 29-32

  摘要：

  DOI：
• 作为产物：
  描述：

  生成 硫化银
  参考文献：
  名称：

  GALLAGHER, N. P.;LEI, K. P. V., REPT INVEST.,(1989) N277, C. 1-9

  摘要：

  DOI：

文献信息

• Silver sulfinate photothermographic films
  申请人：E. I. Du Pont de Nemours and Company

  公开号：US04529689A1

  公开（公告）日：1985-07-16

  Improved heat developable silver films are produced upon coating and drying a binder composition containing (a) a substantially light-insensitive silver sulfinate, (b) a silver halide photocatalyst, and (c) a developer. A preferred film contains (a) silver hexadecylsulfinate, (b) a separately sensitized silver halide emulsion and (c) a Phenidone or Dimezone moiety in a coalesced latex binder.

  通过涂覆和干燥含有（a）基本上不敏感于光的硫酸银，（b）银卤化物光催化剂和（c）显影剂的粘合剂组合物，可以生产出改进的热显影银膜。首选膜包含（a）十六烷基硫酸银，（b）单独敏化的银卤化物乳液和（c）Phenidone或Dimezone基团在聚合乳胶粘合剂中共聚。
• Silver sulfinate physical developer for heat-developable photographic
  申请人：E. I. Du Pont de Nemours and Company

  公开号：US04605753A1

  公开（公告）日：1986-08-12

  Improved heat developable silver films are produced upon coating and drying a binder composition containing (a) a substantially light-insensitive silver sulfinate, (b) a silver halide photocatalyst, and (c) a developer. A preferred film contains (a) silver hexadecylsulfinate, (b) a separately sensitized silver halide emulsion and (c) a Phenidone or Dimezone moiety in a coalesced latex binder.

  通过涂布和干燥包含(a)基本上不敏感于光的硫酸银盐，(b)银卤化物光催化剂和(c)显影剂的粘合剂组合物，可以制备改进的热敏银膜。一种首选的膜包含(a)十六烷基硫酸银盐，(b)分别感光的银卤化物乳胶和(c)Phenidone或Dimezone基团在聚合乳胶粘合剂中的共聚。
• WEIDENBRUCH M.; SCHAEFER A.; RANKERS R., J. ORGANOMETAL. CHEM., 1980, 195, NO 2, 171-184
  作者：WEIDENBRUCH M.、 SCHAEFER A.、 RANKERS R.

  DOI：——

  日期：——
• GHOSH, M. K.;ANAND, S.;DAS, R. P., HYDROMETALLURGY, 22,(1989) N-2, C. 207-221
  作者：GHOSH, M. K.、ANAND, S.、DAS, R. P.

  DOI：——

  日期：——
• KALUGIN, V. D.;YASKO, V. N., TEORIYA I PRAKT. EHLEKTROXIM. PROTSESSOV I EHKOL. ASPEKTY IX ISPOLZ.: TEZ+
  作者：KALUGIN, V. D.、YASKO, V. N.

  DOI：——

  日期：——