DIMETHYLTIN CARBOXYLATE

Dimethyltin carboxylates is used as a catalyst for polyurethane coatings.
These compounds are utilized in various industrial applications, notably as catalysts and stabilizers in polymer production.

Chemical Formula: Varies; for example, dimethyltin neodecanoate has the formula C22H44O4Sn.
Molecular Weight: Depends on the specific compound; for instance, dimethyltin neodecanoate has a molecular weight of approximately 491.26 g/mol.

SYNONYMS:
Dimethyltin dicarboxylate, Dimethyltin bis(carboxylate), Dimethyltin(IV) carboxylate, Dimethyltin neodecanoate,

The term "Dimethyltin carboxylate" refers to a class of organotin compounds where a dimethyltin moiety is bonded to carboxylate groups.
Due to the variety of possible carboxylate ligands, there isn't a single CAS or EC number for "Dimethyltin carboxylate" as a general category.
However, specific compounds within this class have their own identifiers.

Here are some examples:
Dimethyltin bis(2-ethylhexyl mercaptoacetate)
CAS Number: 57583-35-4
EC Number: 260-829-0
Molecular Formula: C₂₂H₄₄O₄S₂Sn
Molecular Weight: 555.43 g/mol
Synonyms: Dimethyltin bis(2-ethylhexyl thioglycolate), DMT(2-EHMA)
Usage: Commonly used as a heat stabilizer in the production of polyvinyl chloride (PVC) materials.

Dimethyltin bis(dodecyl mercaptide)
CAS Number: 51287-84-4
EC Number: Not specified
Molecular Formula: C₂₆H₅₆S₂Sn
Molecular Weight: 551.57 g/mol
Synonyms: Dimethyltin bis(n-dodecylmercaptide), Dimethyltin bis(lauryl mercaptide)
Usage: Also utilized as a stabilizer in PVC and other polymers.

Dimethyltin Bis(Isooctyl Mercaptoacetate)
CAS Number: 26636-01-1
EC Number: Not specified
Molecular Formula: C₂₂H₄₄O₄S₂Sn
Molecular Weight: 555.43 g/mol
Synonyms: Dimethyltin bis(isooctyl thioglycolate), DMT(IOMA)

These compounds are primarily used as heat stabilizers in the processing of polyvinyl chloride (PVC) products, such as pipes, fittings, and profiles.
They function by neutralizing hydrochloric acid released during PVC degradation, thus enhancing the material's thermal stability.

USES and APPLICATIONS of DIMETHYLTIN CARBOXYLATE:
Dimethyltin carboxylates is used as a catalyst for polyurethane coatings.
These compounds are utilized in various industrial applications, notably as catalysts and stabilizers in polymer production.

INDUSTRIAL APPLICATIONS OF DIMETHYLTIN CARBOXYLATE:
1. Catalysts in Polymer Synthesis
Dimethyltin carboxylates are widely employed as catalysts in the production of various polymers.
Polyurethanes: 
Dimethyltin carboxylates facilitate the reaction between isocyanates and polyols, enhancing the efficiency of polyurethane formation.

Silicones: 
Dimethyltin carboxylates aid in the curing process of silicone elastomers, improving their mechanical properties.

Polyesters: 
Dimethyltin carboxylates catalyze esterification and transesterification reactions, crucial in polyester synthesis.
For instance, Dimethyltin carboxylates is a catalyst used in polyurethane coatings, offering fast cure speed and moderate hydrolytic stability.

2. Stabilizers in PVC Manufacturing
In the production of polyvinyl chloride (PVC), dimethyltin carboxylates act as heat stabilizers.
Dimethyltin carboxylates prevent degradation during processing by neutralizing hydrochloric acid released at high temperatures.
Thus maintaining the material's integrity and extending its lifespan.

APPLICATIONS AND BENEFITS OF DIMETHYLTIN CARBOXYLATE:
1. Catalysts in Polymer Production

Dimethyltin carboxylates are employed as catalysts in the production of various polymers, including:
*Polyurethanes
*Polyesters
*Silicones

Benefits:
Dimethyltin carboxylates Enhance reaction rates, improving production efficiency.
Dimethyltin carboxylates Operate effectively at lower temperatures, reducing energy consumption.
Dimethyltin carboxylates Offer high selectivity, minimizing side reactions.

2. Stabilizers in PVC Manufacturing
Dimethyltin carboxylates serve as heat stabilizers in the production of polyvinyl chloride (PVC), preventing degradation during processing and extending the material's lifespan.

3. Biocidal Properties
Some dimethyltin carboxylates exhibit antimicrobial properties, making them useful in applications requiring biocidal action.

PHYSICAL and CHEMICAL PROPERTIES of DIMETHYLTIN CARBOXYLATE:
Chemical Formula: Varies; for example, dimethyltin neodecanoate has the formula C22H44O4Sn.
Molecular Weight: Depends on the specific compound; 
for instance, dimethyltin neodecanoate has a molecular weight of approximately 491.26 g/mol.
Appearance: Typically clear, viscous liquids.
Color: Yellow to amber.
Odor: Mild.
Melting Point: Varies; some compounds have melting points below -6 °C.
Boiling Point: Data not readily available; decomposes before boiling.
Flash Point: Approximately 153 °C.
Solubility: Insoluble in water; soluble in organic solvents.

FIRST AID MEASURES of DIMETHYLTIN CARBOXYLATE:
-Description of first-aid measures
*General advice:
Show this material safety data sheet to the doctor in attendance.
*If inhaled:
After inhalation: 
Fresh air.
*In case of skin contact: 
Take off immediately all contaminated clothing. 
Rinse skin with
water/ shower.
*In case of eye contact:
After eye contact: 
Rinse out with plenty of water. 
Call in ophthalmologist. 
Remove contact lenses.
*If swallowed:
After swallowing: 
Immediately make victim drink water (two glasses at most). 
Consult a physician.
-Indication of any immediate medical attention and special treatment needed.
No data available

ACCIDENTAL RELEASE MEASURES of DIMETHYLTIN CARBOXYLATE:
-Environmental precautions:
Do not let product enter drains.
-Methods and materials for containment and cleaning up:
Cover drains. 
Collect, bind, and pump off spills. 
Observe possible material restrictions. 
Take up dry. 
Dispose of properly. 
Clean up affected area.

FIRE FIGHTING MEASURES of DIMETHYLTIN CARBOXYLATE:
-Extinguishing media:
*Suitable extinguishing media:
Carbon dioxide (CO2) 
Foam 
Dry powder
*Unsuitable extinguishing media:
For this substance/mixture no limitations of extinguishing agents are given.
-Further information:
Prevent fire extinguishing water from contaminating surface water or the ground water system.

EXPOSURE CONTROLS/PERSONAL PROTECTION of DIMETHYLTIN CARBOXYLATE:
-Control parameters:
--Ingredients with workplace control parameters:
-Exposure controls:
--Personal protective equipment:
*Eye/face protection:
Use equipment for eye protection. 
Safety glasses
*Body Protection:
protective clothing
*Respiratory protection:
Recommended Filter type: Filter A 
-Control of environmental exposure:
Do not let product enter drains.

HANDLING and STORAGE of DIMETHYLTIN CARBOXYLATE:
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Tightly closed. 
Dry.

STABILITY and REACTIVITY of DIMETHYLTIN CARBOXYLATE:
-Chemical stability:
The product is chemically stable under standard ambient conditions (room temperature).
-Possibility of hazardous reactions:
No data available