Selenium dioxide O2Se
6 Inquiries
7446-08-4
Shanghai
25kg/Bag
2024-01-25
Dichloromethane,Linocaine hydrochloride
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Product Description
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Seller Information
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Inquiry History
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DescriptionBasic Info
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Product Name:
Selenium dioxide
Other Name:Selenium oxide (SeO2);NSC 56753;Selenium(IV) oxide;Selenium dioxide;12397-00-1
CAS No.:7446-08-4
Molecular Formula:O2Se
InChIKeys:InChIKey=JPJALAQPGMAKDF-UHFFFAOYSA-N
Molecular Weight:110.96
Exact Mass:110.96
EC Number:231-957-4
UNII:9N3UK29E57
ICSC Number:0946
NSC Number:56753
UN Number:3283|2811
DSSTox ID:DTXSID4021264
Color/Form:Lustrous tetragonal needles; yellowish green vapor|White or yellowish-white to slightly reddish, lustrous, crystalline powder or needles.
HScode:2811290090
Categories:
Characteristics-
PSA:
34.1
XLogP3:-0.61840
Appearance:white powder
Density:3.954 g/cm3 @ Temp: 15 °C
Melting Point:340 °C
Boiling Point:684.9 °C(lit.)
Flash Point:315°C
Refractive Index:Index of refraction: less than 1.76 at 20 °C/D
Water Solubility:H2O: 38.4 g/100 mL (14 ºC)
Storage Conditions:Store below +30°C.
Vapor Pressure:1 mm Hg ( 157 °C)
Toxicity:Oral-rat LD50: 68.1 mg/kg; Oral-Mouse LC50: 23.3 mg/kg
Flammability characteristics:Non-combustible; produces toxic selenide fumes in the fire
Odor:Vapor has a pungent sour smell
Taste:Acidic taste; leaves a burning sensation.
Experimental Properties:Dipole moment: 2.62 debye|Dissolves in water to form selenious acid|Electron affinity: 1.823 eV|Heat of formation: at 25 °C -238.5 kJ/mol|For more Other Experimental Properties (Complete) data for SELENIUM DIOXIDE (13 total), please visit the HSDB record page.
Air and Water Reactions:In presence of water will corrode most metals (USCG, 1999). Readily soluble in water forming selenious (selenous) acid.
Reactive Group:Oxidizing Agents, Strong
Reactivity Alerts:Strong Oxidizing Agent
Reactivity Profile:Inorganic oxidizing agents, such as SELENIUM DIOXIDE, react with reducing agents to generate heat and products that may be flammable, combustible, or otherwise reactive. SELENIUM DIOXIDE reacts with water, particularly hot water, to give selenious (selenous) acid, a weak acid that is corrosive. Stable to light and heat. Rapidly absorbs dry hydrogen fluoride, hydrogen chloride, hydrogen bromide to form the corresponding selenium oxohalide. A good oxidizing agent. Reacts oxidatively with ammonia to form dinitrogen gas and selenium [Merck]. Oxidizes many organic substances.
Corrosivity:In presence of water will corrode most metals|... Soluble in water forming selenic acid, a corrosive material. ...
Hazard IdentificationClassification of the substance or mixture
Acute toxicity - Category 3, Oral
Skin corrosion, Sub-category 1B
Serious eye damage, Category 1
Acute toxicity - Category 2, Inhalation
Specific target organ toxicity â repeated exposure, Category 2
Hazardous to the aquatic environment, short-term (Acute) - Category Acute 1
Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 1
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Danger
Hazard statement(s) H301 Toxic if swallowed
H314 Causes severe skin burns and eye damage
H330 Fatal if inhaled
H373 May cause damage to organs through prolonged or repeated exposure
H410 Very toxic to aquatic life with long lasting effects
Precautionary statement(s) Prevention P264 Wash ... thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P271 Use only outdoors or in a well-ventilated area.
P284 [In case of inadequate ventilation] wear respiratory protection.
P273 Avoid release to the environment.
Response P301+P316 IF SWALLOWED: Get emergency medical help immediately.
P321 Specific treatment (see ... on this label).
P330 Rinse mouth.
P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P363 Wash contaminated clothing before reuse.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P316 Get emergency medical help immediately.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
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.
P320 Specific treatment is urgent (see ... on this label).
P319 Get medical help if you feel unwell.
P391 Collect spillage.
Storage P405 Store locked up.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
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
Separated from food and feedstuffs. Dry.
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Seller Information
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Business Type:
Manufactory
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Main Products:
Dichloromethane,Linocaine hydrochloride
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Location:
BUILDING 1,HISENSE INTELLIGENCE VALLEY,NO.2116,OF PHOEIX ROAD, HIGH-TECH ZONE ,JINAN CITY ,SHANDONG PROVINCE,CHINA
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Payment Terms:
D/P,L/C,D/A
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Average lead Time:
15
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Total Annual Revenue:
$10 million-$25 million
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Total Employees:
11-50
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Year of Establishment:
2016
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Inquiry History6 Inquiries
Country Product Purchase Quantity Date Posted 
Morocco
Selenium Dioxide
2 KG Aug 15, 2023 
United States
Selenium Dioxide
1 Jul 29, 2025 
Pakistan
Selenium Dioxide
25 G Jul 26, 2024 
Russia
Selenium dioxide
25 KG Dec 25, 2023 
India
Selenium dioxide
500.00 KG Jun 22, 2026 
Czech
Selenium dioxide powder 99.9%
25 KG Feb 18, 2024 Post an enquiry for this product
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