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Methyltin mercaptide

CAS No.: 57583-35-4
Formula: C22H44O4S2Sn
Molecular Weight: 555.42
Suppliers: All(0) China Suppliers(0) Products(5)
  • Description
  • Basic Info
  • Safety Info
  • MSDS
  • Price
  • Related Product
  • Supplier Reference
What is Methyltin mercaptide

**Introduction to Methyltin Mercaptide** Methyltin mercaptide is a highly effective organotin compound widely used as a heat stabilizer in the production of polyvinyl chloride (PVC). Known for its excellent thermal stability and transparency retention, it helps prevent degradation and discoloration of PVC during processing at high temperatures. This product is particularly favored in rigid and semi-rigid PVC applications, including pipes, sheets, and packaging materials. Methyltin mercaptide offers superior performance compared to traditional stabilizers, ensuring longer product lifespan and enhanced durability. Its low toxicity and environmental impact make it a preferred choice in modern manufacturing. With consistent quality and reliability, methyltin mercaptide plays a crucial role in advancing PVC technology.

Preparation Process: Methyltin mercaptide is prepared by reacting methyltin chloride with a mercaptan (thiol) in the presence of a base. Typically, methyltin trichloride or dimethyltin dichloride is dissolved in an organic solvent like toluene or xylene. A stoichiometric amount of mercaptan (e.g., 2-ethylhexyl mercaptan) is added dropwise under nitrogen atmosphere. A base such as sodium hydroxide or ammonia is introduced to neutralize the liberated HCl. The reaction is exothermic and requires cooling to maintain 40–60°C. After completion, the mixture is washed with water to remove salts, and the solvent is distilled off under vacuum to yield the product as a viscous liquid or solid, depending on the mercaptan used.

Usage Scenarios: Methyltin mercaptide is primarily used as a heat stabilizer in the production of polyvinyl chloride (PVC) and other chlorinated polymers. It effectively prevents thermal degradation during processing by scavenging hydrochloric acid (HCl) released at high temperatures. This compound enhances the thermal stability, durability, and longevity of PVC products, making it essential for applications such as pipes, fittings, cables, and films. Methyltin mercaptide also improves color retention and transparency in rigid and flexible PVC formulations. Its low toxicity and high efficiency make it a preferred choice over traditional lead-based stabilizers, particularly in food-contact and potable water applications. Additionally, it offers good compatibility and processing ease.

Methyltin mercaptide Basic Info
Chemical Name Methyltin mercaptide
Synonyms Methyl Tin Stabilizer;SKL1140;Einecs 260-829-0;Methyltin mercaptid;methyltin mercaptide;Fomrez* catalyst UL-54;Tin Stabilizer (Methyl);Methyltin Mercaptide stabiliser;Isooctyl thioacetate dimethyl tin;Tin methylmercaptan heat stabilizer
CAS No. 57583-35-4
Molecular Formula C22H44O4S2Sn
Molecular Weight 555.42
PSA 103.20000
LogP 6.67380
Safely Info
RTECS -
Hazard Class -
Safety Statements -
HS Code -
WGK Germany -
Packing Group -
RIDADR -
Risk Statements -
Hazard Codes -
Caution Statement P264-P270-P301+P312-P330-P501-P261-P272-P280-P302+P352-P333+P313-P321-P363-P501-P260-P264-P270-P314-P501
Hazard Declaration H302-H317-H361d-H372
Symbol GHS08,GHS07
Signal Word Danger
Methyltin mercaptide Price
1. United States: $5,000 - $10,000 per ton
2. China: $3,000 - $7,000 per ton
3. Russia: $4,000 - $8,000 per ton
4. Germany: $6,000 - $12,000 per ton
5. India: $2,500 - $6,000 per ton
6. Japan: $7,000 - $13,000 per ton
7. Brazil: $3,500 - $8,000 per ton
8. South Korea: $6,500 - $11,000 per ton
9. Philippines: No results
10. United Kingdom: $6,000 - $12,000 per ton
11. France: $6,500 - $12,500 per ton
12. Mexico: $4,000 - $9,000 per ton
13. Canada: $5,500 - $11,000 per ton
14. South Africa: $3,000 - $7,500 per ton
15. Egypt: No results
16. Turkey: $4,500 - $9,000 per ton
17. Thailand: $3,500 - $8,000 per ton
18. Indonesia: $3,000 - $7,000 per ton
MSDS
SDS 1.0
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SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-ethylhexyl 2-[[2-(2-ethylhexoxy)-2-oxoethyl]sulfanyl-dimethylstannyl]sulfanylacetate

1.2 Other means of identification

Product number -
Other names 2-ethylhexyl 10-ethyl-4,4-dimethyl-7-oxo-8-oxa-3,5-dithia-4-stannatetradecan-1-oate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Process regulators,Processing aids, not otherwise listed
Uses advised against no data available

1.4 Supplier's details

Company MOLBASE (Shanghai) Biotechnology Co., Ltd.
Address Floor 4 & 5, Building 12, No. 1001 North Qinzhou Road,
Xuhui District, Shanghai, China
Telephone +86(21)64956998
Fax +86(21)54365166

1.5 Emergency phone number

Emergency phone number +86-400-6021-666
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

2.Hazard identification

2.1 Classification of the substance or mixture

Acute toxicity - Oral, Category 4

Skin sensitization, Category 1A

Specific target organ toxicity – repeated exposure, Category 1

Reproductive toxicity, Category 2

2.2 GHS label elements, including precautionary statements

Pictogram(s)
Signal word

Danger

Hazard statement(s)

H302 Harmful if swallowed

H317 May cause an allergic skin reaction

H372 Causes damage to organs through prolonged or repeated exposure

H361d

Precautionary statement(s)
Prevention

P264 Wash ... thoroughly after handling.

P270 Do not eat, drink or smoke when using this product.

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

P272 Contaminated work clothing should not be allowed out of the workplace.

P280 Wear protective gloves/protective clothing/eye protection/face protection.

P260 Do not breathe dust/fume/gas/mist/vapours/spray.

P201 Obtain special instructions before use.

P202 Do not handle until all safety precautions have been read and understood.

Response

P301+P312 IF SWALLOWED: Call a POISON CENTER/doctor/…if you feel unwell.

P330 Rinse mouth.

P302+P352 IF ON SKIN: Wash with plenty of water/...

P333+P313 If skin irritation or rash occurs: Get medical advice/attention.

P321 Specific treatment (see ... on this label).

P362+P364 Take off contaminated clothing and wash it before reuse.

P314 Get medical advice/attention if you feel unwell.

P308+P313 IF exposed or concerned: Get medical advice/ attention.

Storage

P405 Store locked up.

Disposal

P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification

none

3.Composition/information on ingredients

3.1 Substances

Chemical name Common names and synonyms CAS number EC number Concentration
2-ethylhexyl 2-[[2-(2-ethylhexoxy)-2-oxoethyl]sulfanyl-dimethylstannyl]sulfanylacetate 2-ethylhexyl 2-[[2-(2-ethylhexoxy)-2-oxoethyl]sulfanyl-dimethylstannyl]sulfanylacetate 57583-35-4 none 100%

4.First-aid measures

4.1 Description of necessary first-aid measures

General advice

Consult a physician. Show this safety data sheet to the doctor in attendance.

If inhaled

If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.

In case of skin contact

Wash off with soap and plenty of water. Consult a physician.

In case of eye contact

Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.

If swallowed

Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.

4.2 Most important symptoms/effects, acute and delayed

no data available

4.3 Indication of immediate medical attention and special treatment needed, if necessary

no data available

5.Fire-fighting measures

5.1 Extinguishing media

Suitable extinguishing media

Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.

5.2 Specific hazards arising from the chemical

no data available

5.3 Special protective actions for fire-fighters

Wear self-contained breathing apparatus for firefighting if necessary.

6.Accidental release measures

6.1 Personal precautions, protective equipment and emergency procedures

Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8.

6.2 Environmental precautions

Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided.

6.3 Methods and materials for containment and cleaning up

Pick up and arrange disposal. Sweep up and shovel. Keep in suitable, closed containers for disposal.

7.Handling and storage

7.1 Precautions for safe handling

Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.

7.2 Conditions for safe storage, including any incompatibilities

Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

8.Exposure controls/personal protection

8.1 Control parameters

Occupational Exposure limit values

no data available

Biological limit values

no data available

8.2 Appropriate engineering controls

Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.

8.3 Individual protection measures, such as personal protective equipment (PPE)

Eye/face protection

Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

Skin protection

Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. 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. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.

Respiratory protection

Wear dust mask when handling large quantities.

Thermal hazards

no data available

9.Physical and chemical properties

Physical state Clean and oiled transparent fluid
Colour no data available
Odour no data available
Melting point/ freezing point no data available
Boiling point or initial boiling point and boiling range 515.6ºC at 760 mmHg
Flammability no data available
Lower and upper explosion limit / flammability limit no data available
Flash point no data available
Auto-ignition temperature no data available
Decomposition temperature no data available
pH no data available
Kinematic viscosity no data available
Solubility no data available
Partition coefficient n-octanol/water (log value) no data available
Vapour pressure no data available
Density and/or relative density no data available
Relative vapour density no data available
Particle characteristics no data available

10.Stability and reactivity

10.1 Reactivity

no data available

10.2 Chemical stability

Stable under recommended storage conditions.

10.3 Possibility of hazardous reactions

no data available

10.4 Conditions to avoid

no data available

10.5 Incompatible materials

no data available

10.6 Hazardous decomposition products

no data available

11.Toxicological information

Acute toxicity

  • Oral: no data available
  • Inhalation: no data available
  • Dermal: no data available

Skin corrosion/irritation

no data available

Serious eye damage/irritation

no data available

Respiratory or skin sensitization

no data available

Germ cell mutagenicity

no data available

Carcinogenicity

no data available

Reproductive toxicity

no data available

STOT-single exposure

no data available

STOT-repeated exposure

no data available

Aspiration hazard

no data available

12.Ecological information

12.1 Toxicity

  • Toxicity to fish: no data available
  • Toxicity to daphnia and other aquatic invertebrates: no data available
  • Toxicity to algae: no data available
  • Toxicity to microorganisms: no data available

12.2 Persistence and degradability

no data available

12.3 Bioaccumulative potential

no data available

12.4 Mobility in soil

no data available

12.5 Other adverse effects

no data available

13.Disposal considerations

13.1 Disposal methods

Product

The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.

Contaminated packaging

Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.

14.Transport information

14.1 UN Number

ADR/RID: no data available IMDG: no data available IATA: no data available

14.2 UN Proper Shipping Name

ADR/RID: no data available
IMDG: no data available
IATA: no data available

14.3 Transport hazard class(es)

ADR/RID: no data available IMDG: no data available IATA: no data available

14.4 Packing group, if applicable

ADR/RID: no data available IMDG: no data available IATA: no data available

14.5 Environmental hazards

ADR/RID: no IMDG: no IATA: no

14.6 Special precautions for user

no data available

14.7 Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code

no data available

15.Regulatory information

15.1 Safety, health and environmental regulations specific for the product in question

Chemical name Common names and synonyms CAS number EC number
2-ethylhexyl 2-[[2-(2-ethylhexoxy)-2-oxoethyl]sulfanyl-dimethylstannyl]sulfanylacetate 2-ethylhexyl 2-[[2-(2-ethylhexoxy)-2-oxoethyl]sulfanyl-dimethylstannyl]sulfanylacetate 57583-35-4 none
European Inventory of Existing Commercial Chemical Substances (EINECS) Listed.
EC Inventory Listed.
United States Toxic Substances Control Act (TSCA) Inventory Listed.
China Catalog of Hazardous chemicals 2015 Not Listed.
New Zealand Inventory of Chemicals (NZIoC) Listed.
Philippines Inventory of Chemicals and Chemical Substances (PICCS) Listed.
Vietnam National Chemical Inventory Listed.
Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) Listed.

16.Other information

Information on revision

Creation Date Aug 20, 2017
Revision Date Aug 20, 2017

Abbreviations and acronyms

  • CAS: Chemical Abstracts Service
  • ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
  • RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
  • IMDG: International Maritime Dangerous Goods
  • IATA: International Air Transportation Association
  • TWA: Time Weighted Average
  • STEL: Short term exposure limit
  • LC50: Lethal Concentration 50%
  • LD50: Lethal Dose 50%
  • EC50: Effective Concentration 50%

References

  • IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
  • HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
  • IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
  • eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
  • CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
  • ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
  • ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
  • Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
  • ECHA - European Chemicals Agency, website: https://echa.europa.eu/

Disclaimer: The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. We as supplier shall not be held liable for any damage resulting from handling or from contact with the above product.
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