Osmium
6 Inquiries
7440-04-2
99%
Bottle,barrel,cargo,container,etc.
2026-06-30
Intermediates,Building blocks,API,Silicones,Peptides,Lab chemicals
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Product Description
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Seller Information
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Inquiry History
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DescriptionKeywords
7440-04-2
Osmium
Quick DetailsProName:Osmium
CasNo:7440-04-2
Appearance:powder, or liquid
Application:Pharmaceuticals, intermediates, APIs, custom synthesis, chemicals
DeliveryTime:5-7 Days
PackAge:Bottle, barrel, cargo, container, etc.
Port:Shanghai
Purity:99
Storage:Stored in room temperature, ventilated place
Transportation:By air, ship, express, etc.
LimitNum:0
Grade:Industrial Grade
SuperiorityBest Seller, High Quality, Competitive Price, Fast Delivery, Quick Response
DetailsLEAPChem supplies high quality Pharmaceuticals, intermediates, APIs, custom synthesis, fine chemicals and other industrial chemicalsBasic Info-
Product Name:
OSMIUM
Other Name:OsMiuM, 99.9%, (trace Metal basis);Osmium powder, 99.8% trace metals basis;Osmium plasma standard solution, Os 1000μg/mL;Osmium AAS standard solution, Os 1000μg/mL;OSMIUM STANDARD;OSMIUM METAL;OSMIUM ATOMIC ABSORPTION STANDARD;OSMIUM PLASMA EMISSION SPECTROSCOPY STANDARD
CAS No.:7440-04-2
Molecular Formula:Os
InChIKeys:SYQBFIAQOQZEGI-UHFFFAOYSA-N
Molecular Weight:190.23
Exact Mass:191.961502
EC Number:231-114-0
UNII:2E7M255OPY
TSCA:TSCA listed
DSSTox ID:DTXSID5064679
NCI Thesaurus Code:C95182
Color/Form:Black
HScode:71104100
Categories:
Characteristics-
PSA:
0
Physical Properties:One of the important properties of osmium is the formation of gases when the metal isexposed to air. These fumes are extremely toxic, which limits osmium’s usefulness. Osmium is ahard, tough, brittle, bluish-white metal that is difficult to use except in a powder form that oxidizesinto osmium tetroxide (OsO4), which not only has objectionable odor but also is toxic.Osmium has a relatively high melting point of 3,054°C and a boiling point of 5,500°C,with a density of 22.61 g/cm3.
XLogP3:0.00000
Appearance:Black sponge
Density:22.61 g/cm3 (lit.)
Melting Point:3045 °C (lit.)
Boiling Point:5027 °C (lit.)
Water Solubility:attacked by aqua regia; barely affected by HCl, H2SO4 [MER06]
Vapor Pressure:1.8 Pa (mm Hg) at 3050 deg C
Toxicity:LDLo ivn-dog: 17 mg/kg SMSJAR 26,131,1826
Experimental Properties:Ionic radius, 69 pm; crystal structure, hexagonal close packed; lattice constant, 273.41 pm; thermal expansion, 6.10X10+6 °C-1; magnetic susceptibility, 5.2X10-8 cu cm/g; Young's modulus, 5.56X10+8 kN/sq m; Poisson's ratio, 0.28; Vicker's hardness, 300-670; temperature coefficient of resistance 4.2X10-3 K-1; electrical resistivity at 0 °C, 8.12 microohm-cm; thermal conductivity, 88 W/m K|Valence 0 to 8, more usual, +3, +4, +6, +8; lustrous, bluish white, extremely hard and brittle even at high temperatures, the solid metal is not affected by air at room temperature, but the powdered or spongy metal slowly gives off osmium tetroxide following oxidation in air|Seven naturally occurring isotopes: (184)Os, 0.02%; (186)Os, 1.6%; (187)Os, 1.6%; (188)Os, 13.3%; (189)Os, 16.1%; (190)Os, 26.4%; (192)Os, 41.0%; artificial radioactive isotopes: 181-183; 185;191;193-195; specific heat at 0 °C, 0.0309 cal/g °C; Mohs' hardness, 7.0|Stable in air in the cold; when finely divided, is slowly oxidized by air even at ordinary temperatures to form tetroxide; attacked by fluorine above 100 °C; by dry chlorine on heating; not attacked by bromine or iodine; attacked by aqua regia, by oxidizing acids over a long period of time; barely affected by HCl, H2SO4; burns in vapor of phosphorus to form phosphide; in vapor of sulfur to form sulfide; attacked by molten alkali hydrosulfates, by potassium hydroxide and oxidizing agents; finely divided osmium absorbs a considerable amount of hydrogen|For more Other Experimental Properties (Complete) data for OSMIUM, ELEMENTAL (6 total), please visit the HSDB record page.
Hazard IdentificationClassification of the substance or mixture
Flammable solids, Category 2
Skin irritation, Category 2
Serious eye damage, Category 1
Specific target organ toxicity â single exposure, Category 3
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Danger
Hazard statement(s) H228 Flammable solid
H315 Causes skin irritation
H318 Causes serious eye damage
H335 May cause respiratory irritation
Precautionary statement(s) Prevention P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P240 Ground and bond container and receiving equipment.
P241 Use explosion-proof [electrical/ventilating/lighting/...] equipment.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P264 Wash ... thoroughly after handling.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P271 Use only outdoors or in a well-ventilated area.
Response P370+P378 In case of fire: Use ... to extinguish.
P302+P352 IF ON SKIN: Wash with plenty of water/...
P321 Specific treatment (see ... on this label).
P332+P317 If skin irritation occurs: Get medical help.
P362+P364 Take off contaminated clothing and wash it before reuse.
P305+P354+P338 IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P317 Get medical help.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P319 Get medical help if you feel unwell.
Storage P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P405 Store locked up.
Disposal P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.
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Seller Information
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Business Type:
Trader
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Main Products:
Intermediates,Building blocks,API,Silicones,Peptides,Lab chemicals
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Location:
Room A, 23rd Floor, No. 609 Yan'an Road, Gongshu District, Hangzhou, Zhejiang
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Payment Terms:
TT against copy of documents,D/P,L/C
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Average lead Time:
5
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Total Annual Revenue:
Above $100 million
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Year of Establishment:
2020
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Certifications:
ISO
">Company ProfileLEAPChem is a specialized fine chemical supplier for research, development and production.
LEAPChem provides nearly 200,000 rare and innovative chemical products to support the evolving needs of our customers in research & bulk manufacturing activities.
As a highly customer-oriented enterprise, we are committed to providing high-quality customer services and products to our global customers in a cost-effective and efficient manner.
Our client list includes many major pharmaceutical and science companies, universities, research institutions and chemical catalogue companies.
Methodology: Sound & Stable; Active & Innovative.
Attitude: Conscientious; Ingenious.
Goals: Customer's Satisfaction
We regard client's success as our success.
At LEAPChem, we strive to be the preferred supplier for efficiency increasing and cost lowering in your Research & Production.
To achieve this strategic vision, we always push ourselves to exceed our customer's requirement. By focusing on the aim of 'Beyond Your Expectation', we continually expand our product lines, and enhance our systematic management and human resources.
Welcome to contact us and we look forward to becoming your reliable and preferred partner.
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Inquiry History6 Inquiries
Country Product Purchase Quantity Date Posted 
India
Osmium sponge powder 200 mesh
1 KG Mar 1, 2026
India
Osmium metal powder
10 KG Sep 25, 2024 
Hongkong, China
Osmium
10 KG Aug 27, 2024 
Nepal
osmium sponge
1 KG Mar 9, 2026
Hongkong, China
Osmium
1 KG Aug 27, 2024
Hongkong, China
Osmium Powder
100 KG Aug 27, 2024 Post an enquiry for this product
