Scale Inhibitor 4300 RXSOL is a high performance polymer based scale inhibitor, specifically developed to prevent both calcium carbonate and calcium sulfate salt deposits in water systems. The unique feature of Scale Inhibitor 4300 RX is the improved overall performance for inhibiting these calcium scales over conventional polymaleic acids, acrylate polymers and phosphonates. This product, a maleic multipolymer, will also prevent the formation of other scales such as calcium oxalate. Scale Inhibitor 4300 RXSOL will also disperse colloids and fine particles such as clay.
Scale Inhibitor 4300 RXSOL is a specially formulated blended polymer-based scale inhibitor, developed to provide superior control of inorganic scale deposition in offshore and onshore oilfield production systems.
The product is highly effective against mixed sulphate and carbonate scales, particularly barium sulphate, strontium sulphate, calcium sulphate, and calcium carbonate, which are commonly encountered in high-salinity formation waters and seawater injection systems.
Scale Inhibitor 4300 is specifically designed for scale squeeze applications, offering excellent adsorption onto reservoir rock surfaces and controlled, long-term inhibitor release, thereby extending squeeze life and reducing intervention frequency.
Mechanism of Action
Maleic polymers are known to be excellent calcium carbonate inhibitors and crystal modifiers but many exhibit only fair calcium sulfate deposit control. A new polymer, Scale Inhibitor 4300 Rx, has been developed to overcome this problem. Scale Inhibitor 4300 Rx contains maleic polymer and a unique combination of other functionalities to provide both superior calcium carbonate and calcium sulfate inhibition, also outperforming HEDP. Preventing calcium sulfate scale is important in water systems treated with sulfuric acid for pH control or if using seawater or briny waters. Also removing sulfur oxide gases in scrubbing systems can result in sulfur containing calcium deposits.
Scale Inhibitor 4300 Rx polymer inhibits scale buildup on surfaces through at least three mechanisms:
- Solubility enhancement or threshold effect, which reduces precipitation of low solubility inorganic salts.
- Crystal modification, which deforms the growing inorganic salt crystals to give small, irregular, readily fractured crystal that do not adhere well to surfaces.
- Dispersing activity, which prevents precipitated crystals or other inorganic particles from agglomerating and depositing on surfaces.
Key Areas of Application of High Polymer Scale Inhibitor
- Offshore oil & gas production facilities
- Subsea and topside production systems
- Water injection and produced water handling systems
- Well tubing, flowlines, manifolds, and separators
- Scale squeeze treatments in sandstone and carbonate reservoirs
- Continuous scale inhibition programs
Performance Advantages with Scale Inhibitor 4300 RX Polymer Scale Inhibitor
The following tables compare the product efficacy of Scale Inhibitor 4300 Rx polymer with other scale control agents for inhibiting calcium salts and dispersing solids. The higher the performance value (% inhibition or NTU), the better the scale inhibitor and dispersant. Test conditions represent various salt levels found in cycled cooling water.
Calcium Carbonate Inhibition :
Polymers were tested for preventing the precipitation of calcium carbonate under highly stressed conditions. The "High Salt" conditions used for these evaluations contain chloride levels typical of seawater or very briny waters. The "High Calcium" conditions contain calcium and carbonate levels typical of highly cycled cooling water. In Table 1, Scale Inhibitor 4300 Rx provided excellent performance for inhibiting calcium carbonate under both test conditions. Scale Inhibitor 4300 Rx , HEDP and polymaleic acid were the best inhibitors in the "High Salt" test while Scale Inhibitor 4300 Rx and pAA were the best inhibitors in the "High Calcium" test. Note that a competitive polymer, V1, performed poorly in
the "High Salt" test for inhibiting calcium carbonate.
Table 1 - Scale Inhibitor 4300 Rx- Calcium Carbonate Scale Inhibitor
| Additive | MW | % CaCO3 Inhibition - High Salt |
% CaCO3 Inhibition -High Calcium |
| Scale Inhibitor 4300 Rx | 2000 | 84 | 96 |
| HEDP | 206 | 86 | 90 |
| Polymaleic Acid | 750 | 86 | 82 |
| Polyacrylic Acid | 2000 | 10 | 96 |
| Polyacrylic Acid | 4000 | 8 | 95 |
| AA/Sulfonate Copolymer | 4500 | 6 | 85 |
| Competitive Polymer V1 | 6700 | 10 | Not Tested |
| None | ---- | 3 | 63 |
CaCO3 Inhibition (%) (High Salt): 20 ppm polymer solids/200 ppm Ca+2 as CaCO3/3500 ppm
M-Alkalinity as CaCO3/30,000 ppm NaCl/pH 9/38°C/20 hours.
CaCO3 Inhibition (%) (High Calcium): 10 ppm polymer solids/600 ppm Ca+2 as CaCO3/300 ppm Mg+2 as CaCO3/600 ppm
M-Alkalinity/pH 9/54°C/20 hours.
Calcium Sulfate Inhibition :
Scale Inhibitor 4300 RX is also an excellent calcium sulfate inhibitor as demonstrated in Table 2. Many conditions were evaluated at different temperatures, pH and polymer levels. Scale Inhibitor 4300 RX provided excellent performance similar to pAA in the longer term tests but was the best performer for inhibiting calcium sulfate in once-thru conditions where induction time is under an hour. Scale Inhibitor 4300 RX excelled over polymaleic acid and HEDP for inhibiting calcium sulfate.
Typical Properties :
| Appearance | Liquid clear |
| Type | Maleic Multipolymer |
| Odour | Odourless or Mild odor |
|
Molecular weight¹ |
2000 |
| pH | 6.5 - 7.50 |
| % Total solids | 50 |
| % Actives | 60-90 |
| Viscosity, as is, mPa.s/cps² | 400-1200 |
- Barium Sulphate (BaSO₄)
- Strontium Sulphate (SrSO₄)
- Calcium Sulphate (CaSO₄)
- Calcium Carbonate (CaCO₃)
- Mixed sulphate / carbonate scale systems
- Controls barium, strontium, and calcium sulphate scales effectively.
- Provides strong inhibition of calcium carbonate scaling.
- Designed specifically for formation scale squeeze applications.
- Delivers extended squeeze life through controlled inhibitor release.
- Effective at low treatment dosages (5–50 ppm).
- Performs reliably in high-salinity and seawater systems.
- Maintains stability under elevated temperature conditions.
- Fully soluble in water and ethylene glycol.
- Compatible with most oilfield production chemicals.
- Reduces scale deposition in tubing, flowlines, and separators.
- Helps maintain production efficiency and flow assurance.
- High flash point ensures safer handling and storage.
- Low pour point enables use in colder operating environments.
- Minimizes well interventions and operational downtime.
- Cost-effective alternative to conventional phosphonate inhibitors.
| Product Name | Scale Inhibitor 4300 Rx (High Polymer) |
| Part Number | RXSOL-33-3340-035 |
Company Details:
RX MARINE INTERNATIONAL
105, A wing , BSEL , TECH PARK.
VASHI ,NEW BOMBAY 400703 INDIA
Branch : Kandla, Mumbai, Chennai, Kakinada, Vizag, Kolkata, Fujairah Muscat
| Phone | +91 22 27815540 / 27815542 |
| Fax | +91 22 2781 1318 :::AOH :0091 9821214367 |
| 123@rxmarine.com | |
| Website | www.rxmarine.com |
| Name of Substance | Cas Number | Weight % |
| Polycarboxylate, Polylmer | Not Hazardous | 60 - 100 |
| Chemical nature | Polymer of acrylic polymer |
| Mixtures |
This product is a mixture. This product does not contain, in concentrations equal to or greater than those laid down by the Regulation (EC) No. 2015/830, any substances presenting a health or environmental hazard nor any substances for which there are Community workplace exposure limits in place |
| Classification according to Regulation (EC) No 1272/2008 | Not a hazardous substance or mixture according to Regulation (EC) No. 1272/2008. |
| Label elements |
Labelling according to Regulation (EC) No 1272/2008: Not a hazardous substance or mixture according to Regulation (EC) No. 1272/2008. |
| Other hazards | No data available |
| Inhalation | Move to fresh air. |
| Skin Contact | Wash with water and soap as a precaution. If skin irritation persists, call a physician. |
| Eye Contact | Rinse with plenty of water. If eye irritation persists, consult a specialist. |
| Ingestion |
Drink 1 or 2 glasses of water. Consult a physician if necessary. Never give anything by mouth to an unconscious person.
|
| Most important symptoms/effects, acute and delayed | Aside from the information found under Description of first aid measures (above) and Indication of immediate medical attention and special treatment needed (below), any additional important symptoms and effects are described in Section 11: Toxicology Information. |
| Indication of any immediate medical attention and special treatment needed. Notes to Physician | Notes to physician: Treatment of exposure should be directed at the control of symptoms and the clinical condition of the patient. |
| Suitable Extinguishing Media | Use extinguishing media appropriate for surrounding fire. |
| Unsuitable extinguishing media | Not applicable |
| Hazardous combustion products | No data available |
| Unusual Fire and Explosion Hazards | Material can splatter above 100C/212F. Dried product can burn. |
| Fire Fighting Procedures | No data available |
| Special protective equipment for firefighters | Wear self-contained breathing apparatus and protective suit. |
| Personal precautions, protective equipment and emergency procedures. | Use personal protective equipment. Keep people away from and upwind of spill/leak. Material can create slippery conditions. |
| Environmental Precautions | CAUTION: Keep spills and cleaning runoff out of municipal sewers and open bodies of water. |
| Methods and material for containment and cleaning up |
Contain spills immediately with inert materials (e.g., sand, earth). Transfer liquids and solid diking material to separate suitable containers for recovery or disposal.
|
| Reference to other sections | References to other sections, if applicable, have been provided in the previous sub-sections. |
| Precautions for safe handling | Monomer vapors can be evolved when material is heated during processing operations. See SECTION 8, for types of ventilation required. |
| Conditions for safe storage, including any incompatibilities |
Keep from freezing - product stability may be affected. STIR WELL BEFORE USE. Storage stability .Storage temperature: 1 - 49 °C |
| Specific end use(s) | See the technical data sheet on this product for further information. |
| Engineering controls | Use only in area provided with appropriate exhaust ventilation. |
| Protective measures | Facilities storing or utilizing this material should be equipped with an eyewash facility. |
| Eye/face protection |
Safety glasses with side-shields Eye protection worn must be compatible with respiratory protection system employed. |
|
Skin protection Hand |
The glove(s) listed below may provide protection against permeation. (Gloves of other chemically resistant materials may not provide adequate protection): Neoprene gloves |
| Respiratory protection | None required if airborne concentrations are maintained below the exposure limit listed in Exposure Limit Information. Use certified respiratory protection equipment meeting EU requirements(89/656/EEC, 89/686/EEC ), or equivalent, when respiratory risks cannot be avoided or sufficiently limited by technical means of collective protection or by measures, methods or procedures of work organization. |
| Control of environmental exposure | Handling and storage and SECTION 13: Disposal considerations for measures to prevent excessive environmental exposure during use and waste disposal. |
| Appearance | Liquid clear |
| Colour | No data available |
| Odour | Odourless or Mild odor |
| Odor Threshold | No data available |
| pH | 7-9 |
| Freezing Point | 0 °C ( 32 °F) Water |
| Boiling point | (760 mmHg) 100.00 °C Water |
| Flash Point | Non combustible |
| Decomposition temperature | >230 °C (446.00 °F) |
| Lower explosion limit | Not Applicable |
| Uper explosion limit | Not Applicable |
| Vapour pressure | 17.0 mmHg at 20 °C (68.00 °F) Water |
| Water Solubility | Completely soluble |
| Relative density | 1.150 - 1.20 |
| Viscosity, dynamic | 1,000 mPa.s maximum |
| Evaporation rate | 1.00 Water |
| Explosive properties | No information available |
| Oxidizing properties | No information available |
| Reactivity | No data available |
| Stability | No data available |
| Possibility of Hazardous Reaction | None known. Product will not undergo polymerization. Stable |
| Conditions to Avoid | No data available |
| Incompatible Materials | There are no known materials which are incompatible with this product. |
| Hazardous Decomposition Products | Thermal decomposition may yield acrylic monomers. |
| Acute toxicity | LD50, Rat, > 5,000 mg/kg |
| Acute dermal toxicity | LD50, Rabbit, > 5,000 mg/kg |
| Acute inhalation toxicity | Product test data not available. Refer to component data. |
| Skin corrosion/irritation | No skin irritation |
| Serious eye damage/irritation | slight irritation |
| Sensitization |
Did not cause allergic skin reactions when tested in guinea pigs. Did not cause allergic skin reactions when tested in humans. |
| For respiratory sensitization | No data available. |
| STOT-single exposure | Product test data not available. Refer to component data. |
| STOT-repeated exposure | Product test data not available. Refer to component data. |
| Carcinogenicity | Product test data not available. Refer to component data. |
| Teratogenicity | Product test data not available. Refer to component data. |
| Reproductive toxicity | Product test data not available. Refer to component data. |
| Mutagenicity | Ames mutagenicity: Negative |
| Aspiration Hazard | Product test data not available. Refer to component data. |
| Acute toxicity to fish | LC50, Zebra fish (Danio/Brachydanio rerio), 96 Hour, >200 mg/l, OECD Test Guideline 203 or Equivalent |
| Acute toxicity to aquatic invertebrates |
EC50, Daphnia magna (Water flea), 48 Hour, >200 mg/l, OECD Test Guideline 202 LC50, Marine copepod (acartia tonsa), 48 Hour, >1,000 mg/l, OECD Test Guideline 202 |
| Acute toxicity to algae/aquatic plants |
Growth rate EC50, Marine algae (Skeletonema costatum), 48 Hour, Growth rate, 480 mg/lNOEC 400 mg/l, OECD Test Guideline 201.Chronic aquatic toxicity Chronic toxicity to aquatic invertebrates EC50, Abra alba, 5 d, 2204 mg/kg |
| Persistence and degradability |
Biodegradability: No applicable data. Exposure time: 28 d Method: OECD Test Guideline 302B or Equivalent |
| Bioaccumulative potential | No data available. |
| Mobility in soil | No data available |
| Results of PBT and vPvB assessment | This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher. |
| Other adverse effects | No data available. |
| Waste from Residues / Unused Products |
For disposal, incinerate or landfill at a permitted facility in accordance with local, state, and federal regulations. The definitive assignment of this material to the appropriate EWC group and thus its proper EWC code will depend on the use that is made of this material. Contact the authorized waste disposal services. |
| DOT | Not regulated |
| TDG | Not regulated |
| Hazard Class | Not regulated |
| IATA | Not regulated |
| IMDG/IMO | Not regulated |
|
Safety, health and environmental regulations/ legislation specific for the substance or mixture |
REACh Regulation (EC) No 1907/2006 This product contains only components that have been either pre-registered, registered, are exempt from registration, are regarded as registered or are not subject to registration according to Regulation (EC) No. 1907/2006 (REACH)., Polymers are exempted from registration under REACH. All relevant starting materials and additives have been either pre-registered, registered, or are exempt from registration to Regulation (EC) No. 1907/2006 (REACH)., The aforementioned indications of the REACH registration status are provided in good faith and believed to be accurate as of the effective date shown above. However, no warranty, express or implied, is given. It is the buyer´s/user´s responsibility to ensure that his/her understanding of the regulatory status of this product is correct. Seveso III: Directive 2012/18/EU of the European Parliament and of the Council on the control of major-accident hazards involving dangerous substances. Listed in Regulation: Not applicable |
| Chemical safety assessment | Not applicable |
| Other Information |
The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use. Users should make their own investigations to determine the suitability of the information for their particular purposes. In no event shall be liable for any claims, losses, or damages of any third party or for lost profits or any special, indirect, incidental, consequential or exemplary damages, howsoever arising, even if RX Marine International has been advised of the possibility of such damages. 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. |