MANGANESE DIOXIDE TECH
Category
Manganese dioxide (MnO2) is an inorganic compound.In addition to water treatment, MnO2 has many uses, including (but not limited to) the manufacture of batteries, beverage cans, agricultural pesticides and fungicides and electronic circuitry.
Application
Manganese and Iron Removal from Water
Manganese dioxide technology is one of the most commonly used and least understood applications for removing iron, manganese, hydrogen sulfide, arsenic and radium.
RXSOL Manganese Dioxide
Iron and manganese are unaesthetic parameters present mostly in groundwater, causing unwanted precipitation and color.
Iron removal
Iron removal is based on the precipitation of dissolved iron (Fe2+) into its oxidized form (Fe3+), as Fe(OH)3 or Fe2O3.
Iron removal by physical-chemical way consists in iron oxidation by air followed by sand filtration, but other techniques exist as well:
Oxidation + sand filtration
(physical chemical way) For water with pH > 7, low redox potential, low iron content (< 3mg/L)
Oxidation + sand filtration + MnO2 filter For higher iron content and/or manganese
Oxidation + green sand More efficient than sand filtration but required KMnO4 regeneration
Oxidation + Limestone contactor For acidic water with low redox potential, the limestone contactor increases aggressive water pH by binding
CO2
Ion exchange Recommended for continuous process with low iron content. Not pH dependent
Oxidation can be carried out by various chemicals like chlorine, ozone but is mostly done by compressed air.
Complex bound iron and manganese, e.g. complex bound with humic acids, can be very difficult to remove. In this case oxidation with ozone
can be a solution.
Manganese removal
For manganese removal only, Manganese dioxide (MnO2) is used as an adsorbent according to the following reaction:
Mn + MnO2 (s) --> 2 MnO (s)
Manganese oxides are then adsorbed on MnO2 grains. When all MnO2 has been consumed, it can be regenerated by sodium hypochlorite.
Manganese dioxide is a catalyst. So when there is a tiny bit of dissolved oxygen in the water, and the iron and manganese in the water
come in contact with the manganese dioxide, you get that catalytic reaction and the iron and manganese is filtered out of the water.
RXSOL Manganese Dioxide
Iron and manganese are unaesthetic parameters present mostly in groundwater, causing unwanted precipitation and color.
Iron removal
Iron removal is based on the precipitation of dissolved iron (Fe2+) into its oxidized form (Fe3+), as Fe(OH)3 or Fe2O3.
Iron removal by physical-chemical way consists in iron oxidation by air followed by sand filtration, but other techniques exist as well:
Oxidation + sand filtration
(physical chemical way) For water with pH > 7, low redox potential, low iron content (< 3mg/L)
Oxidation + sand filtration + MnO2 filter For higher iron content and/or manganese
Oxidation + green sand More efficient than sand filtration but required KMnO4 regeneration
Oxidation + Limestone contactor For acidic water with low redox potential, the limestone contactor increases aggressive water pH by binding
CO2
Ion exchange Recommended for continuous process with low iron content. Not pH dependent
Oxidation can be carried out by various chemicals like chlorine, ozone but is mostly done by compressed air.
Complex bound iron and manganese, e.g. complex bound with humic acids, can be very difficult to remove. In this case oxidation with ozone
can be a solution.
Manganese removal
For manganese removal only, Manganese dioxide (MnO2) is used as an adsorbent according to the following reaction:
Mn + MnO2 (s) --> 2 MnO (s)
Manganese oxides are then adsorbed on MnO2 grains. When all MnO2 has been consumed, it can be regenerated by sodium hypochlorite.
Manganese dioxide is a catalyst. So when there is a tiny bit of dissolved oxygen in the water, and the iron and manganese in the water
come in contact with the manganese dioxide, you get that catalytic reaction and the iron and manganese is filtered out of the water.
RXSOL Manganese Dioxide
Iron and manganese are unaesthetic parameters present mostly in groundwater, causing unwanted precipitation and color.
Iron removal
Iron removal is based on the precipitation of dissolved iron (Fe2+) into its oxidized form (Fe3+), as Fe(OH)3 or Fe2O3.
Iron removal by physical-chemical way consists in iron oxidation by air followed by sand filtration, but other techniques exist as well:
Oxidation + sand filtration
(physical chemical way) For water with pH > 7, low redox potential, low iron content (< 3mg/L)
Oxidation + sand filtration + MnO2 filter For higher iron content and/or manganese
Oxidation + green sand More efficient than sand filtration but required KMnO4 regeneration
Oxidation + Limestone contactor For acidic water with low redox potential, the limestone contactor increases aggressive water pH by binding
CO2
Ion exchange Recommended for continuous process with low iron content. Not pH dependent
Oxidation can be carried out by various chemicals like chlorine, ozone but is mostly done by compressed air.
Complex bound iron and manganese, e.g. complex bound with humic acids, can be very difficult to remove. In this case oxidation with ozone
can be a solution.
Manganese removal
For manganese removal only, Manganese dioxide (MnO2) is used as an adsorbent according to the following reaction:
Mn + MnO2 (s) --> 2 MnO (s)
Manganese oxides are then adsorbed on MnO2 grains. When all MnO2 has been consumed, it can be regenerated by sodium hypochlorite.
Manganese dioxide is a catalyst. So when there is a tiny bit of dissolved oxygen in the water, and the iron and manganese in the water
come in contact with the manganese dioxide, you get that catalytic reaction and the iron and manganese is filtered out of the water.
Dose
Manganese dioxide is well known as a catalyst for selective oxidation of organic compounds; it is also a known catalyst for oxidation of CO to CO2 at low temperatures.
Manganese dioxide catalyzes the decomposition of hydrogen peroxide to oxygen and water. Since manganese dioxide is a catalyst, it is not consumed in the reaction.
Note
Manganese dioxide (MnO2) is an inorganic compound. ... In addition to water treatment, MnO2 has many uses, including (but not limited to) the manufacture of batteries, beverage cans, agricultural pesticides and fungicides and electronic circuitry.
MSDS
| Product Name |
|
|
| Product Type | MANGANESE DIOXIDE TECH | |
| Revised date |
Company Details:
RX MARINE INTERNATIONAL
105, A wing , BSEL , TECH PARK.
VASHI ,NEW BOMBAY 400703 INDIA
Stock Point : Mumbai, Kandla, Chennai, Visakhapatnam, Kolkata, Fujairah, Muscat Barka
| Phone | +91 22 27815541 / 42 |
| Fax | +91 22 2781 1318 :::AOH :0091 9821214367 |
| mail@rxmarine.com |
Substance / Preparation : Manganese dioxide
CAS No :1313-13-9
Substance.
Substance name Contents CAS No
Manganese dioxide : 100 % 1313-13-9
Contains no other components or impurities which will influence the classification of the product.
3.1. Classification of the substance or mixture
Classification EC 67/548 or EC 1999/45
Classification : Xn; R20/22
Hazard Class and Category Code(s), Regulation (EC) No 1272/2008
(CLP) Health hazards : Acute toxicity, Inhalation - Category 4 - Warning (CLP : Acute Tox. 4) H332
Acute toxicity, Oral - Category 4 - Warning (CLP : Acute Tox. 4) H302
3.2. Label elements
Labelling EC 67/548 or EC 1999/45
Symbol(s) : Xn : Harmful
R Phrase(s) : R20/22 : Harmful by inhalation and if swallowed.
S Phrase(s) : S2 : Keep out of the reach of children.
S25 : Avoid contact with eyes.
Labelling Regulation EC 1272/2008 (CLP)
Hazard pictograms
Signal words : Warning
Hazard statements : H302 : Harmful if swallowed.
H332 : Harmful if inhaled. Precautionary statements
• General : P102: Keep out of reach of children.
P103: Read label before use.
P101: If medical advice is needed, have product container or label at hand.
• Prevention : P271: Use only outdoors or in a well-ventilated area.
P261: Avoid breathing dust, fume, gas, mist, vapours, spray.
P264: Wash thoroughly after handling.
P270: Do not eat, drink or smoke when using this product.
• Response : P301+P312: IF SWALLOWED : Call a POISON CENTER or doctor if you feel unwell.
P304+P340: IF INHALED : Remove to fresh air and keep at rest in a position comfortable for breathing.
• Disposal considerations : P501: Dispose of this material and its container to hazardous or special waste
collection point, in accordance with local, regional, national and/or international regulation.
3.3. Other hazards
Other hazards : The substance does not fulfil the criteria to be identified as PBT
substance or vPvB substance according to Annex XIII of Regulation REACH.
4.1. Description of first aid measures
Inhalation : Assure fresh air breathing. Allow the victim to rest.
Remove to fresh air and keep at rest in a position comfortable for breathing.
Call a POISON CENTER or doctor if you feel unwell.
Skin contact : Remove affected clothing and wash all exposed
skin area with mild soap and water, followed by warm water rinse.
Eye contact : Rinse immediately with plenty of water.
Obtain medical attention if pain, blinking or redness persist.
Ingestion : Obtain emergency medical attention. Rinse mouth. Do NOT induce vomiting.
Call a POISON CENTER or doctor if you feel unwell.
4.2. Most important symptoms and effects, both acute and delayed
Symptoms relating to use : Danger of serious damage to health by
prolonged exposure through inhalation. Swallowing a small
quantity of this material will result in serious health hazard.
4.3. Indication of any immediate medical attention and special treatment needed
General information : Never give anything by mouth to an unconscious person.
If you feel unwell, seek medical advice (show the label where possible).
5.1. Extinguishing media
Suitable extinguishing media : Foam. Dry powder. Carbon dioxide. Water spray. Sand.
Unsuitable extinguishing media : Do not use a heavy water stream.
Surrounding fires : Use water spray or fog for cooling exposed containers.
5.2. Special hazards arising from the substance or mixture
Hazardous combustion products : Under fire conditions, hazardous fumes will be present.
5.3. Advice for fire-fighters
Protection against fire : Do not enter fire area without proper protective equipment,
including respiratory protection. Special procedures : Exercise caution when fighting
any chemical fire. Avoid (reject) fire-fighting water to enter environment.
6.1. Personal precautions, protective equipment and emergency procedures
For emergency responders : Equip cleanup crew with proper protection. Ventilate area.
For non-emergency personnel : Evacuate unnecessary personnel.
6.2. Environmental precautions
Environmental precautions : Prevent entry to sewers and public waters.
Notify authorities if product enters sewers or public waters.
6.3. Methods and material for containment and cleaning up
Clean up methods : Soak up spills with inert solids, such as clay or diatomaceous
earth as soon as possible. Collect spillage. Store away from other materials.
6.4. Reference to other sections
See section 8. Exposure controls/personal protection
7.1. Precautions for safe handling
Handling : Use only outdoors or in a well-ventilated area.
Avoid breathing dust, fume, gas, mist, vapours, spray.
Do not eat, drink or smoke when using this product.
Wash thoroughly after handling.
Technical protective measures : Provide good ventilation in process area to prevent formation of vapour.
7.2. Conditions for safe storage, including any incompatibilities
Storage : Keep only in the original container in a cool, well ventilated place.
Keep container closed when not in use. Storage - away from : Strong bases. Strong acids. Sources of ignition. Direct sunlight.
7.3. Specific end use(s)
Specific end use(s) : None.
8.1. Exposure controls
Personal protection : Avoid all unnecessary exposure.
• Respiratory protection : In case of insufficient ventilation,
wear suitable respiratory equipment.
• Hand protection : Wear protective gloves.
• Eye protection : Chemical goggles or safety glasses.
• Others : When using, do not eat, drink or smoke.
8.2. Control parameters
Occupational Exposure Limits : No data available.
9.1. Information on basic physical and chemical properties
Physical state at 20 °C : Solid.
Odour threshold : No data available.
pH value : No data available.
Melting point [°C] : 535 °C
Decomposition point [°C] : N/A
Critical temperature [°C] : N/A
Auto-ignition temperature [°C] : N/A
Flammability (solid, gas) : N/A
Flash point [°C] : N/A
Boiling point [°C] : N/A
Initial boiling point [°C] : N/A
Final boiling point [°C] : N/A
Evaporation rate : N/A
Vapour pressure [20°C] : N/A
Vapour pressure mm/Hg : N/A
Vapour density : N/A
Density [g/cm3] : 5,06
Relative density, gas (air=1) : N/A
Relative density, liquid (water=1) : N/A
Solubility in water [% weight] : Insoluble in water
Solubility in water : N/A
Log Pow octanol / water at 20°C : No data available.
Solubility : N/A
Viscosity at 40°C [mm2/s] : N/A
9.2. Other information
Explosive properties : N/A
Explosion limits - upper [%] : N/A
Explosion limits - lower [%] : N/A
Oxidising properties : No data available.
10.1. Reactivity
Reactivity : Not established.
10.2. Chemical stability
Chemical stability : Stable under recommended storage conditions.
10.3. Possibility of hazardous reactions
Hazardous reactions : Not established.
10.4. Conditions to avoid
Conditions to avoid : Direct sunlight. Extremely high or low temperatures.
10.5. Incompatible materials
Materials to avoid : Strong acids. Strong bases.
10.6. Hazardous decomposition products
Hazardous decomposition products : Fumes. Carbon monoxide. Carbon dioxide.
11.1. Information on toxicological effects Acute toxicity
• Inhalation : Harmful if inhaled.
• Dermal : Based on available data, the classification criteria are not met.
• Ingestion : Harmful if swallowed. Corrosion : Based on available data, the classification criteria are not met.
Irritation : Based on available data, the classification criteria are not met.
Sensitization : Based on available data, the classification criteria are not met.
Mutagenicity : Based on available data, the classification criteria are not met.
Carcinogenicity : Based on available data, the classification criteria are not met.
Toxic for reproduction : Based on available data, the classification criteria are not met.
STOT-single exposure : Based on available data, the classification criteria are not met.
STOT-repeated exposure : Based on available data, the classification criteria are not met.
Aspiration hazard : Based on available data, the classification criteria are not met.
12.1. Toxicity
Toxicity information : Not established.
12.2. Persistence - degradability
Persistence - degradability : Biodegradable.
12.3. Bioaccumulative potential
Bioaccumulative potential : Not established.
12.4. Mobility in soil
Mobility in soil : Not established.
12.5. Results of PBT and vPvB assessment
Results of PBT and vPvB assessment : The substance
does not fulfil the criteria to be identified as PBT substance
or vPvB substance according to Annex XIII of Regulation REACH.
12.6. Other adverse effects
Environmental precautions : Avoid release to the environment
13.1. Waste treatment methods
General : Avoid release to the environment. Dispose in
a safe manner in accordance with local/national regulations.
Dispose of this material and its container to hazardous or special waste
collection point, in accordance with local, regional, national and/or international regulation.
14.1. Land transport (ADR-RID)
General information : Not regulated.
14.2. Sea transport (IMDG) [English only]
General information : Not regulated.
14.3. Air transport (ICAO-IATA) [English only]
General information : Not regulated.
15.1. Safety, health and environmental regulations/legislation specific for the substance or mixture
Safety, health and environmental : Ensure all national/local regulations are observed.
regulations/legislation specific for the substance or mixture
REACH Restrictions - Annex XVII : The components of this product are not subject to restrictions.
REACH Authorisation - Annex XIV : The components of this product are not subject to authorization.
15.2. Chemical Safety Assessment
Chemical Safety Assessment : It has not been carried out.
Abbreviations and acronyms : PBT: persistent, bioaccumulative and toxic. vPvB: very persistent and very bioaccumulative
Sources of key data used : REGULATION (EC) No 1272/2008 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL
of 16 December 2008 on classification, labelling and packaging of substances and mixtures, amending and repealing Directives
67/548/EEC and 1999/45/EC, and amending Regulation (EC) No 1907/2006 Further information : None. In accordance with REACH
Regulation (CE) Nº 1907/2006 and with CLP Regulation (CE) Nº 1272/2008 DISCLAIMER OF LIABILITY The information in this SDS
was obtained from sources which we believe are reliable. However, the information is provided without any warranty, express or implied,
regarding its correctness. The conditions or methods of handling,storage, use or disposal of the product are beyond our control and may
be beyond our knowledge. For this and other reasons, we do not assume responsibility and expressly disclaim liability for loss, damage or
expense arising out of or in any way connected with the handling, storage, use or disposal of the product. This MSDS was prepared and is
to be used only for this product. If the product is used as a component in another product, this MSDS information may not be applicable.
DISCLAIMER OF LIABILITY :The information in this SDS was obtained from sources which we believe are reliable. However, the information is provided without any warranty, express or implied, regarding its correctness. The conditions or methods of handling, storage, use or disposal of the product are beyond our control and may be beyond our knowledge. For this and other reasons, we do not assume responsibility and expressly disclaim liability for loss, damage or expense arising out of or in any way connected with the handling, storage, use or disposal of the product. This MSDS was prepared and is to be used only for this product. If the product is used as a component in another product, this MSDS information may not be applicable.