Sodium thiosulfate is an important inorganic chemical raw material also Used as the chlorine removal agent.
Category
Sodium Thiosulfate is a commonly used chemical material, as the fixing agent in photography, film and printing plate-making industry, as a reducing agent used in tanning.
Application
It is used as a bleaching agent for removing residual and a mordant in the paper and textile industries, as antidotes of cyanide poisoning in medicine, as dechlorination agent and fungicides of drinking water and wastewater in water treatment, as a copper corrosion inhibitor of circulating cooling water and a deoxidizer of boiler water systems.
Dose
It is also used for Cyanide wastewater treatment. Soda ash and sulfur are generally used as raw materials in industry, soda ash reacts with sulfur dioxide produced by the combustion of sulfur to produce sodium sulfite, then add sulfur for boiling reactions, and then filter, bleach, concentrate and crystallize, etc, can obtain sodium thiosulfate pentahydrate. Other production waste containing sodium sulfide, sodium sulfite, sulfur and sodium hydroxide can also be used, after appropriate treatment to get the product.
Technical specifications
Physical Properties:
| Melting Point | 48°C |
| Boiling Point | 100°C |
| Density | 1.01 g/mL at 25 °C |
| Storage temprature | Store at +5°C to +30°C |
| Solublity | Immiscible with alcohol. |
| Form | Solid |
| Specific gravity | 1.667 |
| Colour | White |
| PH | 6.0-8.5 (25℃, 50mg/mL in H2O) |
| Water solublity | Soluble in water. Insoluble in alcohol |
| Sensitivity | Hygroscopic |
| Stability | Stable.Incompatible with strong acids, strong oxidizing agents, iodine, mercury. |
Note
Uses:
- Sodium thiosulfate is Used in manufacture of the fixing powder and preparation of the photographic industry fixer, desiccant. Used as a reducing agent of dichromate in leather tanning industry.
- Sodium thiosulfate is an important inorganic chemical raw material. It can be used in the synthesis of pesticides Bisultap, Thiosultap disodium, CARTAP and so on.
- Used as analytical reagents, mordant and fixer.
- Used as new insecticides, with stomach poisoning, uptake and contact action effects, it can prevent and treat rice yellow stem borer, stem borer, leaf roller, rice thrips and vegetables, fruit pests.
- With uptake and strong contact, stomach poisoning effects, it can prevent and treat various rice pests and vegetables, fruit pests.
- Used as the chlorine removal agent for Pulp and cotton fabric bleached, as chelating agents, anti-oxidants in the food industry, as detergents, disinfectants in the pharmaceutical industry.
- Used as chelating agents, antioxidants, anti-browning agent, as the dechlorination agent of chlortetracycline hydrochloride (or chlortetracycline) chilled with ice, dechlorination reaction is as follows:More chlorine content will cause side reactions of free sulfur, so only used for very dilute concentrations of chlorine.Used as salt chelating agent, limited content is 0.1% or less.
MSDS
| Porduct Name | Sodium Thiosulfate |
| Part Number | RXSOL-19-6002-025 |
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.com |
| Product name | Cas No | EC No | Weight | Formula |
| Sodium thiosulfate | 7772-98-7 | 231-867-5 | 158,10 g/mol | Na2S2O3 |
| Signal Word | No data available |
| Hazard Statements | No data available |
| Precautionary statements | No data available |
| Classification of the substance or mixture | No data available |
| Supplemental Hazard Statements | No data available |
| Other hazards | 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. |
| General advice | No data available |
| If inhaled | After inhalation fresh air. |
| Eye Contact | After eye contact rinse out with plenty of water. Remove contact lenses. |
| Swallowed | After swallowing immediately make victim drink water (two glasses at most). Consult a physician. 4.2 Most import |
| Skin Contact | In case of skin contact Take off immediately all contaminated clothing. Rinse skin with water/ shower. Call a physician immediately |
| Inhalation | No data available |
| Ingestion | No data available |
| Most important symptoms and effects, both acute and delaye | 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 |
| Flammability | No data available |
| Suitable extinguishing media | Use extinguishing measures that are appropriate to local circumstances and the surrounding environment. |
| Unsuitable extinguishing media | For this substance/mixture no limitations of extinguishing agents are given. |
| Special hazards arising from the substance or mixture | Sulfur oxides Sodium oxides Not combustible. Fire may cause evolution of: Sulfur oxides Ambient fire may liberate hazardous vapours |
| Further information | Suppress (knock down) gases/vapors/mists with a water spray jet. Prevent fire extinguishing water from contaminating surface water or the ground water system. |
|
Hazardous combustion products |
No data available |
| Advice for firefighters | In the event of fire, wear self-contained breathing apparatus. |
| Protective Equipment | No data available |
| Specific Hazards Arising from the Chemical | No data available |
| Personal precautions, protective equipment and emergency procedures | Advice for non-emergency personnel: Avoid inhalation of dusts. Evacuate the danger area, observe emergency procedures, consult an expert. For personal protection see section 8. |
| Spillage | No data available |
| Personal Protection | No data available |
| Enviromental Precaution | Do not let product enter drains. Risk of explosion. |
|
Methods and materials for containment and cleaning |
Cover drains. Collect, bind, and pump off spills. Observe possible material restrictions (see sections 7 and 10). Take up dry. Dispose of properly. Clean up affected area. Avoid generation of dusts. |
| Reference to other sections | For disposal see section 13. |
| Advice on protection against fire and explosion | No data available |
| Incompatible materials | No data available |
| Hygiene measures | No data available |
| Advice on safe handling | For precautions see section 2.2. |
| Conditions for safe storage including any incompatibilities |
No data available |
| Storage conditions | Tightly closed. Dry. Recommended storage temperature see product label |
| Storage class | Storage class (TRGS 510) 13 Non Combustible Solids |
| Specific end use(s) | Apart from the uses mentioned in section 1.2 no other specific uses are stipulated |
| Advice on general occupational hygiene | No data available |
| Exposure controls | Personal protective equipment |
| Engineering Control | No data available |
| Eye/face protection | Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Safety glasses |
| Body Protection | Protective clothing. |
| Skin protection | This recommendation applies only to the product stated in the safety data sheet, supplied by us and for the designated use. When dissolving in or mixing with other substances and under conditions deviating from those stated in EN 16523-1 please contact the supplier of CE-approved gloves (e.g. KCL GmbH, D-36124 Eichenzell, Internet: www.kcl.de). Full contact Material: butyl-rubber Minimum layer thickness: 0,7 mm Break through time: 480 min Material tested:Butoject® (KCL 898) This recommendation applies only to the product stated in the safety data sheet, supplied by us and for the designated use. When dissolving in or mixing with other substances and under conditions deviating from those stated in EN 16523-1 please contact the supplier of CE-approved gloves (e.g. KCL GmbH, D-36124 Eichenzell, Internet: www.kcl.de). Splash contact Material: Nitrile rubber Minimum layer thickness: 0,4 mm Break through time: 120 min Material tested:Camatril® (KCL 730 / Aldrich Z677442, Size M) |
| Respiratory protection |
Required when dusts are generated. Our recommendations on filtering respiratory protection are based on the following standards: DIN EN 143, DIN 14387 and other accompanying standards relating to the used respiratory protection system. Recommended Filter type: Filter type P2The entrepeneur has to ensure that maintenance, cleaning and testing of respiratory protective devices are carried out according to the instructions of the producer. These measures have to be properly documented.
|
| Other Protection Measure | No data available |
| Physical state | Solid |
| Colour | Colorless |
| Odour | No data available |
| Odor Threshold | No data available |
| pH | 6,0 - 9,5 at 50 g/l at 20 °C |
| Melting Point | No data available |
| Boiling Point | No data available |
| Flash Point | No data available |
| Evaporation Rate | No data available |
| Flammability (solid, gas) | No data available |
| Explosive limits | No data Available |
| Upper/lower flammability or explosive limits | No data available |
| Autoignition temperature | No data available |
| Decomposition temperature | No data available |
| Vapour pressure | No data available |
| Viscosity | No data available |
| Density | 1,667 g/cm3 at 20 °C |
| Relative Density | No data available |
| Specific Gravity | No data available |
| Partition coefficient | No data available |
| Explosive properties | No data available |
| Solubility | 210 g/l at 20 °C |
| Ignition temperature | No data available |
| Particle characteristics | No data available |
| Reactivity | No data available |
| Chemical stability | The product is chemically stable under standard ambient conditions (room temperature) |
| Possibilityof hazardous reactions | Risk of explosion with nitrates nitrites peroxi compounds Strong oxidizing agents Violent reactions possible with Fluorine acids |
| Conditions to avoid | No data available |
| Incompatible materials |
No data available
|
| Hazardous decomposition products | In the event of fire see section 5 |
| Acute toxicity | LD50 Oral - Rat - female - > 2.000 mg/kg (OECD Test Guideline 425) (in analogy to similar compounds) LC50 Inhalation - Rat - male and female - 4 h - > 2,6 mg/l - aerosol (OECD Test Guideline 403) (in analogy to similar products) The value is given in analogy to the following substances potassium thiosulphate LD50 Dermal - Rabbit - male and female - > 2.000 mg/kg (OECD Test Guideline 402) The value is given in analogy to the following substances potassium thiosulphate |
| Skin corrosion/irritation | Skin - Rabbit No skin irritation - 4 h (OECD Test Guideline 404) (in analogy to similar products) The value is given in analogy to the following substances sodium sulphite |
| Serious eye damage/irritation | Eyes - Rabbit No eye irritation(OECD Test Guideline 405) (in analogy to similar products) The value is given in analogy to the following substances: diammonium thiosulphate |
| Respiratory or skin sensitization | Local lymph node assay (LLNA) - Mouse Result: negative (OECD Test Guideline 429) (in analogy to similar products) The value is given in analogy to the following substances: diammonium thiosulphate |
| Carcinogenicity | No data available |
| Germ cell mutagenicity | Test Type: In vitro mammalian cell gene mutation test Test system mouse lymphoma cells Metabolic activation with and without metabolic activation Method OECD Test Guideline 476 negative (in analogy to similar products) The value is given in analogy to the following substances: diammonium thiosulphateTest Type: Ames test Test system Escherichia coli/Salmonella typhimurium Metabolic activation with and without metabolic activation Method: OECD Test Guideline 471 negative (in analogy to similar products) The value is given in analogy to the following substances: diammonium thiosulphateTest Type: Chromoome aberration test in vitro Test system: Chinese hamster ovary cells Metabolic activation with and without metabolic activation Method OECD Test Guideline 473 Result: negative (in analogy to similar products) The value is given in analogy to the following substances: diammonium thiosulphateC |
| Reproductive toxicity | No data available |
| Specific target organ toxicity - single exposure |
No data available
|
| Additional Information | The substance/mixture does not contain components considered to have endocrine disrupting properties according to REACH Article57(f) or Commission Delegated regulation (EU) 2017/2100 or Commission Regulation (EU) 2018/605 at levels of 0.1% or higher. Repeated dose toxicity - Rat - male and female - Oral - NOAEL (No observed adverse effect level) - 108 mg/kg Remarks: (in analogy to similar products) (ECHA) The value is given in analogy to the following substances sodium metabisulphite To the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughly investigated. Hazardous properties cannot be excluded but are unlikely when the product is handled appropriately. Therapeutically used substance. Handle in accordance with good industrial hygiene and safety practice. |
| Persistence and degradability | The methods for determining biodegradability are not applicable to inorganic substances. Chemical Oxygen Demand (COD) 405 mg/g Remarks: (IUCLID) |
| Toxicity to fish | Static test LC50 - Lepomis macrochirus (Bluegill sunfish) - 510 mg/l - 96 h (in analogy to similar products) (ECHA) The value is given in analogy to the following substances: diammonium thiosulphate |
| Toxicity to daphnia and other aquatic invertebrates | Static test EC50 - Daphnia magna (Water flea) - 230 mg/l - 48 h Remarks: (in analogy to similar products) (ECHA) The value is given in analogy to the following substances: diammonium thiosulphate |
| Toxicity | No data available |
| Toxicity to bacteria | Static test EC50 - activated sludge - > 1.000 mg/l - 3 h (OECD Test Guideline 209) (in analogy to similar products) The value is given in analogy to the following substances: diammonium thiosulphate |
| Toxicity to algae | Static test ErC50 - Pseudokirchneriella subcapitata (green algae) - > 100 mg/l - 72 h (OECD Test Guideline 201) Remarks: (in analogy to similar products) The value is given in analogy to the following substances: diammonium thiosulphate |
| Products Biodegradation | No data available |
| Mobility in soil | No data availalble |
| 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. |
| Endocrine disrupting properties | The substance/mixture does not contain components considered to have endocrine disrupting properties according to REACH Article 57(f) or Commission Delegated regulation (EU) 2017/2100 or Commission Regulation (EU) 2018/605 at levels of 0.1% or higher |
| Other adverse effects | Additional ecological information Discharge into the environment must be avoided |
| Product | No data available |
| Contaminated packaging | No data available |
| Waste treatment Method | No data available |
| UN number | ADR/RID:- | IMDG:- |
IATA:- |
| UN proper shipping name | ADR/RID:Not dengerous goods | IMDG:Not dengerous goods | IATA:Not dengerous goods |
| Transport hazard class(es) | ADR/RID:- | IMDG:- | IATA:- |
| Packaging group | ADR/RID:- | IMDG:- | IATA:- |
| Environmental hazards | ADR/RID:No | IMDG:No | IATA:No |
| Special precautions for user | No data available | ||
| Further information | No data available |
| Safety, health and environmental regulations/legislation specific for the substance or mixture | This material safety data sheet complies with the requirements of Regulation (EC) No. 1907/2006. |
| Other regulations | No data available |
| Chemical Safety Assessment | A Chemical Safety Assessment was not carried out for this substance. |
| 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 weassume 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. |