二水锇酸钾

二水锇酸钾 基本信息
CAS号 19718-36-6 分子式 K2O4Os
分子量 332.42400 精确质量 　333.86900
PSA 　68.28000 LogP 　-0.47520
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目录
基本信息 制备方法与用途 物化性质 安全信息 MSDS

基本信息 展开↓

CAS号：
19718-36-6
分子式：
K2O4Os
分子量：
332.42400
中文名称：
二水锇酸钾
英文名称：
POTASSIUM OSMATE(VI) DIHYDRATE
中文别名：
二水锇酸钾
英文别名：
POTASSIUM OSMATE(VI) DIHYDRATE;
potassium(VI) osmiate dihydrate;
Potassium osmate dihydrate, 99+%;
PotassiumOsmium(VI)OxideHydrate;
( beta-4)-osmate;
2-dipotassium;
POTASSIUM OSMATE(VI));
OsMate, dipotassiuM
精确分子量/精确质量：
333.86900
极性分子表面积/PSA：
68.28000
油水分配系数/LogP：

LogP值指的是某物质在正辛醇/水两相体系中的分配系数的对数值，反映了物质在油水两相中的分配情况。其中、LogP值越大，说明该物质越亲油；反之，LogP值越小，则说明该物质越亲水。
贝尔斯坦号/MDL：
MFCD00149919
EINECS：
243-247-1
PubChem：
24852235

生产制备方法及用途展开↓

合成制备方法

制法 将四氧化锇OsO4溶于10%的氢氧化钠水溶液中，加入等体积的乙醇，冷却1h。滤出生成的沉淀，并先用50%的乙醇洗涤，然后再用99%乙醇洗涤。置于盛有浓硫酸的干燥器中干燥，可得二水合物。在水中重结晶时会发生分解，所以应原样保存于干燥器中。

物化性质展开↓

稳定性相关：

二水合锇（Ⅵ）酸钾K2OsO4·2H2O为浅红紫色的结晶。易溶于水，但不溶于甲醇或乙醇。在干燥空气中稳定，若置于惰性气流中加热至200℃，则失去结晶水。如在空气中加热便发生分解，生成四氧化锇而挥发。

安全信息展开↓

包装等级：
III
风险类别：
6.1(b)
危险类别码：
R23/24/25
安全说明：
22-26-36-45
安全标志：
S22:不要吸入粉尘。
S26:万一接触眼睛，立即使用大量清水冲洗并送医诊治。
S36:穿戴合适的防护服装。
S45:出现意外或者感到不适，立刻到医生那里寻求帮助（最好带去产品容器标签）。
危险标志：
T: Toxic;

MSDS 展开↓

Name: Potassium Osmate(VI) Dihydrate Material Safety Data Sheet
Synonym: None
CAS: 19718-36-6
Section 1 - Chemical Product   MSDS Name:Potassium Osmate(VI) Dihydrate Material Safety Data Sheet
Synonym:None
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
19718-36-6 Potassium Osmate(VI) Dihydrate 100 243-247-1
Hazard Symbols: None Listed.
Risk Phrases: None Listed.
Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Hygroscopic (absorbs moisture from the air).The toxicological properties of this material have not been fully investigated.
Potential Health Effects
Eye:
May cause eye irritation. The toxicological properties of this material have not been fully investigated.
Skin:
May cause skin irritation. The toxicological properties of this material have not been fully investigated.
Ingestion:
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated.
Inhalation:
May cause respiratory tract irritation. 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:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Ingestion:
Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
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. Vapors may be heavier than air. They can spread along the ground and collect in low or confined areas.
Extinguishing Media:
Use agent most appropriate to extinguish fire. Use water spray, dry chemical, carbon dioxide, or appropriate foam.
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. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.
Section 7 - HANDLING and STORAGE
  Handling:
Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed.
Avoid ingestion and inhalation.
Storage:
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
  Engineering Controls:
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 19718-36-6: 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 prevent skin exposure.
Respirators:
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions. 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: Crystals
Color: violet
Odor: None reported.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: Not available.
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: N/A
Explosion Limits, upper: N/A
Decomposition Temperature:
Solubility in water: soluble
Specific Gravity/Density:
Molecular Formula: K2O4Os.2H2O
Molecular Weight: 368.42
Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, dust generation, excess heat.
Incompatibilities with Other Materials:
Oxidizing agents.
Hazardous Decomposition Products:
Irritating and toxic fumes and gases, oxides of potassium.
Hazardous Polymerization: Has not been reported.
Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 19718-36-6 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
Potassium Osmate(VI) Dihydrate - 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
Shipping Name: TOXIC SOLID, INORGANIC, N.O.S.*
Hazard Class: 6.1
UN Number: 3288
Packing Group: II
IMO
Shipping Name: TOXIC SOLID, INORGANIC, N.O.S.
Hazard Class: 6.1
UN Number: 3288
Packing Group: II
RID/ADR
Shipping Name: TOXIC SOLID, INORGANIC, N.O.S.
Hazard Class: 6.1
UN Number: 3288
Packing group: II
Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 28A After contact with skin, wash immediately with
plenty of water.
S 37 Wear suitable gloves.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 19718-36-6: No information available.
Canada
CAS# 19718-36-6 is listed on Canada's NDSL List.
CAS# 19718-36-6 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 19718-36-6 is listed on the TSCA inventory.

SECTION 16 - ADDITIONAL INFORMATION
N/A
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