RXSOL-50-5008-025 is a Liquid sludge conditioner designed to prevent deposits and most common Boiler water treatment chemicals..DOSES : The initial dosage is 20 ml of treatment daily for every ton of boiler capacity. Bottom blow down is required daily when using Boiler Coagulant.
RXSOL-50-5008-025 Boiler Coagulant prevents the formation of deposits on boiler internal surfaces. Sludge is kept dispersed in small particles and conditioned to be removed normal blow down. In this way tube over heating due to deposits is avoided.
Oxygen Control
Chemical Oxygen Scavengers. The oxygen scavengers most commonly used in boiler systems are sodium sulfite, sodium bisulfite, hydrazine, catalyzed versions of the sulfites and hydrazine, and organic oxygen scavengers, such as hydroquinone and ascorbate.
It is of critical importance to select and properly use the best chemical oxygen scavenger for a given system. Major factors that determine the best oxygen scavenger for a particular application include reaction speed, residence time in the system, operating temperature and pressure, and feedwater pH. Interferences with the scavenger/oxygen reaction, decomposition products, and reactions with metals in the system are also important factors. Other contributing factors include the use of feedwater for attemperation, the presence of economizers in the system, and the end use of the steam. Chemical oxygen scavengers should be fed to allow ample time for the scavenger/oxygen reaction to occur. The deaerator storage system and the feedwater storage tank are commonly used feed points.
In boilers operating below 1,000 psig, sodium sulfite and a concentrated liquid solution of catalyzed sodium bisulfite are the most commonly used materials for chemical deaeration due to low cost and ease of handling and testing. The oxygen scavenging property of sodium sulfite is illustrated by the following reaction:
| 2Na2SO3 | + | O2 | ® | 2Na2SO4 |
| sodium sulfite | oxygen |
sodium sulfate |
Theoretically, 7.88 ppm of chemically pure sodium sulfite is required to remove 1.0 ppm of dissolved oxygen. However, due to the use of technical grades of sodium sulfite, combined with handling and blowdown losses during normal plant operation, approximately 10 lb of sodium sulfite per pound of oxygen is usually required. The concentration of excess sulfite maintained in the feedwater or boiler water also affects the sulfite requirement.
Sodium sulfite must be fed continuously for maximum oxygen removal. Usually, the most suitable point of application is the drop leg between the deaerator and the storage compartment. Where hot process softeners are followed by hot zeolite units, an additional feed is recommended at the filter effluent of the hot process units (prior to the zeolite softeners) to protect the ion exchange resin and softener shells.
As with any oxygen scavenging reaction, many factors affect the speed of the sulfite-oxygen reaction. These factors include temperature, pH, initial concentration of oxygen scavenger, initial concentration of dissolved oxygen, and catalytic or inhibiting effects. The most important factor is temperature. As temperature increases, reaction time decreases; in general, every 18°F increase in temperature doubles reaction speed. At temperatures of 212°F and above, the reaction is rapid. Overfeed of sodium sulfite also increases reaction rate. The reaction proceeds most rapidly at pH values in the range of 8.5-10.0.
The following operational conditions necessitate the use of catalyzed sodium sulfite:
- low feedwater temperature
- incomplete mechanical deaeration
- rapid reaction required to prevent pitting in the system
- short residence time
- use of economizers
High feedwater sulfite residuals and pH values above 8.5 should be maintained in the feedwater to help protect the economizer from oxygen attack.
Some natural waters contain materials that can inhibit the oxygen/sulfite reaction. For example, trace organic materials in a surface supply used for makeup water can reduce speed of scavenger/oxygen reaction time. The same problem can occur where contaminated condensate is used as a portion of the boiler feedwater. The organic materials complex metals (natural or formulated catalysts) and prevent them from increasing the rate of reaction.
Sodium sulfite must be fed where it will not contaminate feedwater to be used for attemporation or desuperheating. This prevents the addition of solids to the steam.
At operating pressures of 1,000 psig and higher, hydrazine or organic oxygen scavengers are normally used in place of sulfite. In these applications, the increased dissolved solids contributed by sodium sulfate (the product of the sodium sulfite-oxygen reaction) can become a significant problem. Also, sulfite decomposes in high-pressure boilers to form sulfur dioxide (SO2) and hydrogen sulfide (H2S). Both of these gases can cause corrosion in the return condensate system and have been reported to contribute to stress corrosion cracking in turbines. Hydrazine has been used for years as an oxygen scavenger in high-pressure systems and other systems in which sulfite materials cannot be used. Hydrazine is a reducing agent that removes dissolved oxygen by the following reaction:
| N2H4 | + | O2 | ® | 2H2O | + | N2 |
| hydrazine | oxygen | water | nitrogen |
Because the products of this reaction are water and nitrogen, the reaction adds no solids to the boiler water. The decomposition products of hydrazine are ammonia and nitrogen. Decomposition begins at approximately 400°F and is rapid at 600°F. The alkaline ammonia does not attack steel. However, if enough ammonia and oxygen are present together, copper alloy corrosion increases. Close control of the hydrazine feed rate can limit the concentration of ammonia in the steam and minimize the danger of attack on copper-bearing alloys. The ammonia also neutralizes carbon dioxide and reduces the return line corrosion caused by carbon dioxide.
Hydrazine is a toxic material and must be handled with extreme care. Because the material is a suspected carcinogen, federally published guidelines must be followed for handling and reporting. Because pure hydrazine has a low flash point, a 35% solution with a flash point of greater than 200°F is usually used. Theoretically, 1.0 ppm of hydrazine is required to react with 1.0 ppm of dissolved oxygen. However, in practice 1.5-2.0 parts of hydrazine are required per part of oxygen.
The factors that influence the reaction time of sodium sulfite also apply to other oxygen scavengers. Rate of reaction as a function of temperature and hydrazine concentration. The reaction is also dependent upon pH (the optimum pH range is 9.0-10.0)
| Product Name | RXSOL-50-5008-025 |
| Product Type | CAT Sulphite ( Catalysed Sulphite for Boiler ) |
Company Details:
RX MARINE INTERNATIONAL
105, A wing , BSEL , TECH PARK.
VASHI ,NEW BOMBAY 400703 INDIA
STOCK point : Mumbai, Kandla, Chennai, Visakhapatnam, Kolkata, Fujairah
| Phone | +91 22 27815541 / 42 |
| Fax | +91 22 2781 1318 :::AOH :0091 9821214367 |
| mail@rxmarine.com | |
| Website | www.rxmarine.com |
|
Chemica Name |
Concentration |
CAS Number |
EC Number |
R Phrases* |
Symbols Disodium |
|
Sodium bisulphite |
30-60% |
7631-90-5 |
231-548-0 |
22, 31 |
Xn |
|
Cobalt sulphate |
0.01-0.25% |
10124-43-3 |
233-334-2 |
49, 22, 42/43, 50/53, |
T, N Carc. Cat. 2; |
*See Section 16
Toxic
Classification of the substance or mixture
Counsil Directive 1999/45/EEC Classification, packing and labelling of dangerous preparations.
Carcinogen, category 2
Label elements
Toxic
Risk Phrases
May cause cancer by inhalation (R49)
Harmful if swallowed (R22)
Contact with acids liberates toxic gas (R31)
Safety Phrases
Keep away from acid (S14)
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice (S26)
Wear suitable gloves and eye/face protection (S37/39)
If swallowed seek medical advice immediately and show this container or label (S46)
Other hazards
Odour: Pungent odour, Strong smell of sulphur
Appearance: Liquid, pink, soluble in water
Contact with eyes: Causes severe irritation
Contact with skin: Causes redness and irritation
|
IF ON SKIN (or hair) |
Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. Contaminated clothing should be laundered before reuse |
|
IF IN EYES |
Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
|
IF SWALLOWED |
rinse mouth. Do NOT induce vomiting. Give plenty of water to drink. Never make an unconscious person vomit or drink fluids |
|
IF INHALED |
If breathing is difficult, remove to fresh air and keep at rest in a position comfortable for breathing. |
|
IF INHALED |
Remove victim to fresh air and keep at rest in a position comfortable for breathing.When in doubt or symptoms persist, seek medical attention |
Most important symptoms and effects, both acute and delayed
Possible redness and irritation of affected areas
Can cause damage to the intestines
Indication of immediate medical attention and special treatment needed
Extinguishing media
Not flammable. In case of fire use extinguishing media appropriate to surrounding conditions
Special hazards arising from the substance or mixture
Smoke from fires is toxic
Advice for firefighters
Wear chemical protection suit and positive-pressure breathing apparatus
Personal precautions, protective equipment and emergency procedures
Wear protective clothing as per section 8
Environmental Precautions
Do not allow to enter public sewers and watercourses
Methods and material for containment and cleaning up
Absorb spillage in inert material and shovel up
Flush spill area with copious amounts of water
Reference to other sections
|
Handling |
Avoid contact with acid. Avoid contact with skin and eyes (S24/25). Eyewash bottles should be available See Section 8 |
|
Storage |
Keep only in the original container in a cool, well ventilated place away from acid (S3/9/14/49). Protect from frost |
Specific end use(s)
|
Control parameters |
TLV (TWA) 5 mg/m3 (Sodium bisulphite) |
|
Exposure controls |
The undiluted product must not be used in a confined space without good ventilation |
|
Occupational exposure controls |
Wear suitable protective clothing, including eye/face protection and gloves (plastic or rubber are recommended). Respiratory protection may be required under exceptional circumstances when excessive air contamination exists |
| Goggles Gloves Suit | No Smoking |
Goggles Gloves Suit No_Smoking
Information on basic physical and chemical properties
|
Odour |
Pungent odour, Strong smell of sulphur |
|
Appearance |
Liquid, pink, soluble in water |
|
pH |
4-6 at 10 % concentration |
|
Boiling point |
>100 °C at 760 mm /Hg |
|
Vapour pressure |
not known |
| Freezing point | 0 °C at 760 mm/Hg |
| Completely soluble in water | |
| Specific gravity (water=1) | 1.35 |
| Non combustible | |
| Other information | None |
Chemical stability
Considered stable under normal conditions.Possibility of hazardous reactions
No hazardous reactions known if used for its intended purpose
Conditions to avoid. Avoid overheating
Incompatible materials
Incompatible with acid. Incompatible with oxidizing substances
Hazardous Decomposition Products
Decomposition products may include sulphur oxides
|
Toxicological information |
LD50 (oral,rat) 2 mg/kg. (NaHSO3) |
| Inhalation | Vapours or aerosols may cause irritation of eyes, nose and respiratory tract. May cause cancer by inhalation (R49) |
|
Contact with skin |
Causes irritation |
|
Contact with eyes |
Causes redness and irritation |
|
Ingestion |
Harmful if swallowed (R22). Can cause damage to the intestines |
| Carcinogenicity | |
| Cobalt sulphate | May cause cancer by inhalation (R49). Category 2 Carcinogen |
|
Toxicity |
May cause acute effects in the aquatic environment |
|
Persistence and degradability |
Its main ingredients will either dissolve rapidly and dissociate in water or are readily / inherently biodegradable.Degrades rapidly on exposure to air |
|
Bioaccumulation Potential |
Cobalt is known to bioaccumulate. |
|
Mobility in soil |
Completely soluble in water |
| Other Adverse Effects | No environmental problems are expected when the product is used / handled correctly. In its intended use, the product will not be released into the environment. |
|
Waste treatment methods |
Do not discharge into drains or the environment, dispose to an authorised waste collection point. Disposal should be in accordance with local, state or national legislation |
|
Classification |
This material and/or its container must be disposed of as hazardous waste EU Waste class: 06.03 |
Corrosive-8
| UN Number | UN2693 | |
| UN Proper Shipping Name | Bisulfites, aqueous solution, n.o.s. (sodium bisulfite) | |
| Transport hazard class(es) | 8 | |
| Packing group | III | |
| Environmental hazards | Presents little or no hazard to the environment | |
| Special precautions for user | Forbidden on passenger aircraft | |
| Transport in bulk according to Annex II of MARPOL 73/78 and the IBC code:Not applicable | ||
| Other information | ||
| Road/Rail (ADR/RID) | ||||
| Proper Shipping Name | Bisulfites, aqueous solution, n.o.s. (sodium bisulfite) | |||
| ADR UN No | UN2693 | ADR Hazard Class | 8 | |
| ADR Packing Group | III | ADR subrisk | n/a | |
| ADR Flashpoint | n/a | |||
| Sea (IMDG) | ||||
| Proper Shipping Name | Bisulfites, aqueous solution, n.o.s. (sodium bisulfite) | |||
| IMDG UN No | UN2693 | IMDG Hazard Class | 8 | |
| IMDG Pack Group | III | IMDG EmS | F-A, S-B | |
| IMDG subrisk | n/a | IMDG Flashpoint | n/a | |
| Air (ICAO/IATA) | ||||
| Proper Shipping Name | Bisulfites, aqueous solution, n.o.s. (sodium bisulfite) | |||
| ICAO Un No | UN2693 | ICAO Hazard Class | 8 | |
| ICAO Packing Group | III | ICAO subrisk | n/a | |
| ICAO Flashpoint | n/a | |||
| DOT / CFR (US Department of Transportation) | ||||
| DOT Proper Shipping Name | Bisulfites, aqueous solution, n.o.s. (sodium bisulfite) | |||
| Hazardous Material | sodium bisulfite | |||
| Hazard Class | 8 | Identification Number | UN2693 | |
| Product RQ (lbs) | 7700 | DOT subrisk | n/a | |
| DOT Flashpoint | n/a | |||
Safety, health and environmental regulations/legislation specific for the substance or mixture
This Safety Data Sheet has been prepared in accordance with article 31 and annex II in REACH and Directive 453/2010/EU. This Safety Data Sheet is provided in compliance with The Dangerous Preparations Directive (88/379/EEC) This Safety Data Sheet is provided in compliance with The Dangerous Substances Directive (67/548/EEC) Chemical Safety Assessment None
Text of R and S phrase codes used in this safety data sheet:- R22: Harmful if swallowed; R31: Contact with acids liberates toxic gas; R42/43: May cause sensitisation by inhalation and skin contact; R49: May cause cancer by inhalation; R50/53: Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment; R60: May impair fertility; R68: Possible risk of irreversible effects. The information provided about the product on this Safety Data Sheet has been compiled from knowledge of the individual constituents The data given here is based on current knowledge and experience. This Safety Data Sheet describes the product in terms of safety requirements and does not signify any warranty with regard to the product's properties The data given here only applies when product used for proper application(s). The product is not sold as suitable for other applications - usage in such may cause risks not mentioned in this sheet. Do not use for other application(s) without seeking advice from manufacturer
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.