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Manganese(IV) oxide CAS 1313-13-9

Chemical Property:

Molecular Formula MnO2
Molar Mass 86.94
Density 5.02
Melting Point 535 °C (dec.) (lit.)
Water Solubility insoluble
Vapor Presure 0-0Pa at 25℃
Appearance Black powder
Specific Gravity 5.026
Color gray
Exposure Limit ACGIH: TWA 0.02 mg/m3; TWA 0.1 mg/m3OSHA: Ceiling 5 mg/m3NIOSH: IDLH 500 mg/m3; TWA 1 mg/m3; STEL 3 mg/m3
Merck 14,5730
Storage Condition Store below +30°C.
Stability Stable. Incompatible with strong acids, strong reducing agents, organic materials.
MDL MFCD00003463
Physical and Chemical Properties Black orthorhombic crystal or brown-black powder.
relative density 5.026
solubility insoluble in water and nitric acid, soluble in acetone.
Use Used as an oxidant, also used in steel, glass, ceramics, enamel, dry batteries, matches, medicine, etc

Product Detail

Product Tags

Hazard Symbols Xn – Harmful
Risk Codes 20/22 – Harmful by inhalation and if swallowed.
Safety Description 25 – Avoid contact with eyes.
UN IDs 3137
WGK Germany 1
RTECS OP0350000
TSCA Yes
HS Code 2820 10 00
Packing Group III
Toxicity LD50 orally in rats: >40 mmole/kg (Holbrook)

 

Introduction

Gradually soluble in cold hydrochloric acid and release chlorine gas, insoluble in water, nitric acid and cold sulfuric acid. In the presence of hydrogen peroxide or oxalic acid, it can be dissolved in dilute sulfuric acid or nitric acid. The lethal dose (rabbit, muscle) is 45mg/kg. It’s oxidizing. Friction or impact with organic matter can cause combustion. It’s irritating.


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