Part No: RXSOL-19-2031-050
Sodium Thiosulfate used as a Pond / Aquarium Dechlorinator. This product also used as a Photography as a fixing agent (hypo) to dissolve unchanged silver salts from exposed negatives.
Sodium Thiosulfate commonly used in Dechlorination of municipal wastewater, pulp & paper, power, and textile water treatment plants and as an Oxygen scavenger in oil well drilling process in Mining industries. Also chemically suitable for Aluminium cation reaction.
Sodium Thiosulfate used as a Pond / Aquarium Dechlorinator. But Sodium Thiosulfate does not treat for Chloramine, only Chlorine. Chloramine is a chemical compound composed of chlorine and ammonia and more and more utilities are converting to its use. Check with your municipal water company to learn which chemical they are using. If Chloramine is the disinfectant, please research other knowledgeable sources to learn your best solution for water treatment.
Molecular Formula ::: Na2S2O3 - 5H2O
This product also used as a Photography as a fixing agent (hypo) to dissolve unchanged silver salts from exposed negatives.
Typical Applications
Sodium Thiosulfate Anhydrous can be used for:
-
Ballast water dechlorination
-
Residual chlorine neutralization
-
Electrochlorination BWMS
-
Sodium hypochlorite-treated ballast water
-
Oxidizing biocide neutralization
-
Ballast water discharge preparation
-
Marine water-treatment systems
How Sodium Thiosulfate Works
Sodium thiosulfate functions as a reducing agent. It reacts with residual oxidizing species and converts them into less oxidizing chemical species.
In a chlorine-treated ballast water system, sodium thiosulfate can consume residual chlorine, helping reduce the Total Residual Oxidant (TRO) concentration before discharge.
The required dosage depends on:
-
Initial TRO concentration
-
Ballast water volume
-
BWMS technology
-
Water chemistry
-
Required discharge residual
-
Chemical concentration
-
Reaction/contact time
-
Dosing-system configuration
Therefore, dosing should be calculated based on the actual BWMS operating parameters rather than using a universal fixed dosage.
Important Dosing Consideration
The required quantity of Sodium Thiosulfate should be determined from the actual TRO measurement and BWMS dosing requirements. Overdosing or underdosing can affect ballast-water treatment performance and discharge conditions.
For shipboard operation, dosing should therefore be controlled through the vessel's approved BWMS procedures, TRO monitoring system, and chemical-dosing equipment.
Sodium Thiosulfate for Ballast Water Neutralization
Many Ballast Water Management Systems (BWMS) use an oxidizing treatment process to control organisms in ballast water. Depending on the technology, treatment may generate or introduce free chlorine, hypochlorite, or other oxidizing residuals.
Before discharge, residual oxidant may need to be neutralized.
Sodium Thiosulfate Anhydrous can be dosed into the treated ballast water to reduce residual oxidizing compounds.
This makes it an important chemical for selected ballast-water neutralization systems.
Sodium Thiosulfate Anhydrous for Ballast Water, Sodium Thiosulfate Ballast Water Treatment, Sodium Thiosulfate Dechlorination, Sodium Thiosulfate Marine Chemical, Sodium Thiosulfate Anhydrous Supplier, Sodium Thiosulfate Manufacturer, Sodium Thiosulfate for BWMS, Ballast Water Dechlorination Chemical, Ballast Water Neutralization Chemical, TRO Neutralization Chemical, Residual Chlorine Neutralizer, Sodium Thiosulfate Pentahydrate Alternative, Ballast Water Treatment Chemicals, Marine Water Treatment Chemicals, BWMS Chemical Supplier.
Ballast Water Treatment Chemical Supplier
For shipowners, ship managers, BWMS operators, marine chemical distributors, and vessel-management companies, selecting a consistent-quality Sodium Thiosulfate Anhydrous supplier is important for reliable neutralization performance.
When purchasing the product, customers should verify:
-
Chemical purity
-
Anhydrous specification
-
Batch consistency
-
COA
-
SDS
-
Packaging
-
Solubility
-
Storage requirements
-
Bulk availability
-
Compatibility with the BWMS dosing system
Advantages of Anhydrous Sodium Thiosulfate
High Active Concentration
Because the anhydrous grade does not contain water of crystallization, it provides a higher chemical concentration by weight compared with hydrated grades.
Effective Dechlorination
It is widely used as a reducing agent for residual chlorine and hypochlorite neutralization.
Easy to Prepare
The solid can be dissolved in water to prepare a dosing solution suitable for compatible chemical dosing systems.
Suitable for Marine Applications
Sodium thiosulfate is used in selected marine and ballast-water treatment applications where residual oxidants must be neutralized before discharge.
Sodium Thiosulfate Anhydrous vs. Pentahydrate
Sodium thiosulfate is available in different hydration states.
Sodium Thiosulfate Anhydrous:
Na₂S₂O₃
Sodium Thiosulfate Pentahydrate:
Na₂S₂O₃·5H₂O
The two grades should not automatically be substituted on a kilogram-for-kilogram basis because their molecular weights and active chemical concentrations differ.
When changing between grades, the dosing calculation should be adjusted according to the required molar or active-chemical concentration.
Storage and Handling
Sodium Thiosulfate Anhydrous should be stored in a cool, dry and well-ventilated location in tightly closed packaging. Protect the product from moisture and contamination.
Appropriate personal protective equipment should be used during handling and preparation of dosing solutions. Always consult the latest Safety Data Sheet (SDS) and the BWMS manufacturer's operating instructions.
Conclusion
Sodium Thiosulfate Anhydrous is an important reducing chemical for selected ballast water treatment systems, particularly where chlorine or other oxidizing disinfectants are used. Its ability to neutralize residual oxidants makes it valuable for ballast water dechlorination and discharge preparation.
For marine operators requiring Sodium Thiosulfate Anhydrous for Ballast Water Treatment, a consistent-quality product, correct dosing calculation, proper storage, and compatibility with the vessel's BWMS are essential for effective and compliant operation.
Safety Data (MSDS)
| Product Name | Sodium Thiosulphate Pentahydrate Sugar Crystals |
| Part Number | RXSOL-19-2031-050 |
Company Details:
RX MARINE INTERNATIONAL
105, A wing , BSEL , TECH PARK.
VASHI ,NEW BOMBAY 400703 INDIA
Branch : Kandla, Mumbai , Chennai, Vizag, Kolkata, UAE , OMAN , CANADA and KENYA
| Phone | +91 22 20871200 - 1400 |
| Fax | +91 22 27612100 :::AOH :0091 9821214367 |
| mail@rxmarine.com | |
| Website | www.rxmraine.comA |
| Formula | Na2O3S2 · 5H2O |
| Molecular Weight | 248,17 g/mol |
| CAS-No. | 10102-17-7 |
| EC-No. | 231-867-5 |
| Classification of the substance or mixture |
Not a hazardous substance or mixture according to Regulation (EC) No. 1272/2008.
This substance is not classified as dangerous according to Directive 67/548/EEC.
|
| Label Elements | This substance is not classified as dangerous according to Directive 67/548/EEC. |
| Other information | None |
| If inhaled | If breathed in, move person into fresh air. If not breathing, give artificial respiration. |
| In case of skin contact | Wash off with soap and plenty of water. |
| In case of eye contact | Flush eyes with water as a precaution. |
| If swallowed | Never give anything by mouth to an unconscious person. Rinse mouth with water. |
| Most important symptoms and effects, both acute and delayed | The most important known symptoms and effects are described in the labelling (see section 2.2) and/or in section 11 |
| Indication of any immediate medical attention and special treatment needed | No data available |
| Suitable extinguishing media | Use extinguishing measures that are appropriate to local circumstances and the surrounding environment. |
| Special hazards arising from the substance or mixture |
Sulphur oxides, Sodium/sodium oxides
Sulphur oxides, Sodium oxides
|
| Advice for firefighters | Wear self contained breathing apparatus for fire fighting if necessary. |
| Further information | The product itself does not burn. |
| Personal precautions, protective equipment and emergency procedures |
Avoid dust formation. Avoid breathing vapours, mist or gas.
For personal protection see section 8.
|
| Environmental precautions | Do not let product enter drains. |
| Methods and materials for containment and cleaning up | Sweep up and shovel. Keep in suitable, closed containers for disposal. |
| Reference to other sections | For disposal see section 13. |
| Precautions for safe handling |
Provide appropriate exhaust ventilation at places where dust is formed.
For precautions see section 2.2.
|
| Conditions for safe storage, including any incompatibilities | Store in cool place. Keep container tightly closed in a dry and well-ventilated place. |
| Specific end use(s) | Apart from the uses mentioned in section 1.2 no other specific uses are stipulated |
Control parameters
| Eye/face protection | Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). |
| Skin protection | Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. |
| Body Protection | Choose body protection in relation to its type, to the concentration and amount of dangerous substances, and to the specific work-place., The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. |
| Respiratory protection | Respiratory protection is not required. Where protection from nuisance levels of dusts are desired, use type N95 (US) or type P1 (EN 143) dust masks. Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU). |
| Control of environmental exposure | Do not let product enter drains. |
| Appearance |
Form: crystalline
Colour: colourless
|
| Odour | Odourless |
| Odour Threshold | No data available |
| pH | No data available |
| Melting point/freezing point | No data available |
| Initial boiling point and boiling range | No data available |
| Flash point | Not applicable |
| Evapouration rate | No data available |
| Flammability (solid, gas) | No data available |
|
Upper/lower
flammability or
explosive limits
|
No data available |
| Vapour pressure | No data available |
| Vapour density | No data available |
| Relative density | No data available |
| Water solubility | No data available |
|
Partition coefficient:
octanol/water
|
No data available |
| Auto-ignition temperature | No data available |
| Decomposition temperature | No data available |
| Viscosity | No data available |
| Explosive properties | No data available |
| Oxidizing properties | No data available |
| Other safety information | No data available |
| Reactivity | No data available |
| Chemical stability | Stable under recommended storage conditions. |
| Possibility of hazardous reactions | No data available |
| Conditions to avoid | No data available |
| Incompatible materials | Sodium nitrate, acids, Strong oxidizing agents, Incompatible with:, iodides, Silver salts, mercury salts, Lead |
| Hazardous Decomposition Products |
Other decomposition products - no data available
In the event of fire: see section 5
|
Information on likely routes of exposure
| Product Information | |
| Inhalation | Specific test data for the substance or mixture is not available. |
| Eye contact | Specific test data for the substance or mixture is not available. Causes eye irritation. Maycause redness, itching, and pain. |
| Skin contact | Specific test data for the substance or mixture is not available. |
| Ingestion | Specific test data for the substance or mixture is not available. |
Symptoms related to the physical, chemical and toxicological characteristics
| Symptoms | May cause redness and tearing of the eyes. |
| Chemical name | Oral LD50 | Dermal LD50 | InhalationLC50 |
|
Sodium Erythorbate
6381-77-7
|
> 5 g/kg ( Rat ) | - | - |
Delayed and immediate effects as well as chronic effects from short and long-term exposure
| Skin corrosion/irritation | May cause skin irritation. |
| Serious eye damage/eye irritation | Classification based on data available for ingredients. Irritating to eyes. |
| Respiratory or skin sensitization | No information available. |
| Germ cell mutagenicity | No information available. |
| Reproductive toxicity | No information available. |
| STOT - single exposure | No information available. |
| STOT - repeated exposure | No information available. |
| Aspiration hazard | No information available. |
| Other adverse effects | No information available. |
| Interactive effects | No information available. |
| Ecotoxicity | The environmental impact of this product has not been fully investigated. |
| Persistence and degradability | No information available |
| Bioaccumulation | Inherently biodegradable. |
| Other adverse effects | No information available |
| Waste treatment methods | |
| Waste from residues/unused products | Dispose of in accordance with local regulations. Dispose of waste in accordancewithenvironmental legislation. |
| Contaminated packaging | Do not reuse empty containers. |
| DOT | Not regulated |
| TDG | Not regulated |
| MEX | Not regulated |
| ICAO (air) | Not regulated |
| IATA | Not regulated |
| IMDG | Not regulated |
| RID | Not regulated |
| ADR | Not regulated |
| ADN | Not regulated |
International Inventories
| TSCA | Complies |
| DSL/NDSL | Complies |
| EINECS/ELINCS | Complies |
| ENCS | This product complies with ENCS: |
| IECSC | This product complies with China: |
| KECL | Complies |
| PICCS | Complies |
| AICS | All the constituents of this material are listed on the Australian Inventory of Chemical Substances (AICS). |
Legend
| TSCA | United States Toxic Substances Control Act Section 8(b) Inventory |
| DSL/NDSL | Canadian Domestic Substances List/Non-Domestic Substances List |
| EINECS/ELINCS | European Inventory of Existing Chemical Substances/European List of Notified Chemical Substances |
| ENCS | Japan Existing and New Chemical Substances |
| IECSC | China Inventory of Existing Chemical Substances |
| KECL | Korean Existing and Evaluated Chemical Substances |
| PICCS | Philippines Inventory of Chemicals and Chemical Substances |
US Federal Regulations
| SARA 313 | Section 313 of Title III of the Superfund Amendments and Reauthorization Act of 1986 (SARA). This product does not containanychemicals which are subject to the reporting requirements of the Act and Title 40 of the Code of Federal Regulations, Part 372. |
| SARA 311/312 Hazard Categories | Should this product meet EPCRA 311/312 Tier reporting criteria at 40 CFR 370, refer to Section 2 of this SDS for appropriateclassifications. |
| CWA (Clean Water Act) | This product does not contain any substances regulated as pollutants pursuant to the Clean Water Act (40 CFR122.21and40 CFR 122.42). |
| CERCLA | This material, as supplied, does not contain any substances regulated as hazardous substances under the ComprehensiveEnvironmental Response Compensation and Liability Act (CERCLA) (40 CFR 302) or the Superfund Amendments andReauthorization Act (SARA) (40 CFR 355). There may be specific reporting requirements at the local, regional, or statelevel pertaining to releases of this material. |
US State Regulations
| California Proposition 65 | This product does not contain any Proposition 65 chemicals. |
| U.S. State Right-to-Know Regulations | This product does not contain any substances regulated under applicable state right-to-know regulations |
| EPA Pesticide Registration Number | 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 merchant ability 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 Internationalhas been advised of the possibility of such damages. |