Reaxis^®  C214 - Dioctyltin bis-(isooctyl mercaptoacetate)

• Product Category Organotin

---

• Chemical Name Dioctyltin bis-(isooctyl mercaptoacetate)

---

• CAS Number 26401-97-8

---

Parameter	Range
Refractive Index (nD @20°C)	1.485 - 1.500
Color (Gardner Number)	5 Max
Density (g/ml)	1.045 - 1.070
Tin Content (%)	14.5 - 16.0

• TSCA (US) Yes

---

• DSL (Canada) Yes

---

• AICS (Australia) Yes

---

• KECI (South Korea) Yes

---

• IECSC (China) Yes

---

• ENCS (Japan) Yes

---

• TCSI (Taiwan) Yes

---

• NZloC (New Zealand) Yes

---

• PICCS (The Philippines) Yes

---

• REACH (EU) No

---

• NDSL (Canada) No

---

Unlike standard organotin carboxylates, sulfur-bearing organotins are primarily used as a catalyst for polyurethanes. Catalysts like REAXIS^® C214 tend to be inactive in silicone and esterification-related applications. Since the sulfur ligand acts as a blocking agent, thermal deblocking is required to initiate the back-end cure. Thus, tin catalysts such as REAXIS^® C214 tend to perform best in adhesive, elastomer, and foam applications with adequate exotherms. For coatings applications, REAXIS^® C214 can be used in baked cured systems in contrast to ambient cured systems. As an octyltin, REAXIS^® C214 is a good replacement in some cases for butyl-based tins such as REAXIS^® C319.

As is typical of most organotin and inorganic tin catalysts, the specific ligand contributes a major influence on overall reactivity. This is specifically highlighted in regard to sulfur-bearing ligands. In general, these sulfur ligands impart improved front-end delay and hydrolytic stability versus standard tin carboxylates. Standard ligands include thiols, mercaptides and mercaptoacetates. Reactivity, as defined by delay, thermal availability, hydrolytic stability, and final cure will depend on the specific ligand, tin content, alkyl group and, most importantly, other raw materials used in the specific polyurethane formulation. As Dioctyl bis-(isooctyl mercaptoacetate) is a mercaptoacetate-based catalyst, its delay should be more pronounced compared with mercaptans such REAXIS^® C319 and REAXIS^® C320. In regard to the reactivity of the various urethane reactions, catalysts such as REAXIS^® C214 will selectively catalyze the isocyanate-polyol reaction, with less of an effect on the water reaction.

 

• 485lb (220 kg) steel drums
• 44 lb (20 kg) plastic pails

REAXIS^® C214 should be stored in the original packaging at moderate temperatures and kept from freezing. The container should be closed tightly after each use to maximize shelf life. Characteristic of most Sn (IV) organotins, the primary cause of instability would be hydrolysis. Although more stable compared to organotin carboxylates, long-term contact with moisture could result in hydrolysis with the formation of tin oxide insolubles leading to deactivation of REAXIS^® C214. 

Before use of Reaxis products please refer to the relevant Safety Data Sheet (SDS) for safety and toxicological data as well as for the information on proper transportation, storage, and use. SDSs are available by request via our web site reaxis.com, contacting your local representative, or emailing direct to techservices@reaxis.com.

Section	Hazard Class	Category	Hazard Statement
A.10	acute toxicity (oral)	4	H302
A.9	specific target organ toxicity - repeated exposure	1	H372

DOT		IMDG	ICAO	Environment Hazard
UN Number	not subject to transport regulations	not subject to transport regulations	not subject to transport regulations	non-environmentally hazardous acc. to the dangerous goods regulations
UN Proper Shipping Name	None	None	None
Transport Class	None	None	None
Packing Group	None	None	None

• dioctyltin bis(isooctyl mercaptoacetate)

• C319
• C320
• C227
• C416