Stannous octoate

CAS No.301-10-0

Chemical Name: Stannous octoate

SynonymsTIN(II) 2-ETHYLHEXANOATE;TIN OCTOATE ;Stannous octanoate; STANNOUS 2-ETHYLHEXANOATE;tin bis(2-ethylhexanoate);TIB KAT 129; Tin dioctoate; Stannous Octoate T-9;Tin(Ⅱ) 2-ethylhexanoate;BIS(2-ETHYLHEXANOATE)TIN

CBNumber:CB0308694

Molecular Formula:C16H30O4Sn

Molecular Weight:405.12

MDL Number:MFCD00002676

Brand Designation / Product Code Table

Stannous octoate Properties

Melting point      <-20°C

Boiling point       >200°C

Density  1.251 g/mL at 25 °C(lit.)

vapor pressure     0.3Pa at 20℃

refractive index   n20/D 1.493(lit.)

Flash point   >110°C

pka 5.09[at 20 ℃]

form       liquid

Specific Gravity  1.251

Viscosity       306mm2/s

Water Solubility  Miscible with water.

Hydrolytic Sensitivity       7: reacts slowly with moisture/water

Exposure limits    ACGIH: TWA 0.1 mg/m3; STEL 0.2 mg/m3 (Skin)

NIOSH: IDLH 25 mg/m3; TWA 0.1 mg/m3

InChI     1S/2C8H16O2.Sn/c2*1-3-5-6-7(4-2)8(9)10;/h2*7H,3-6H2,1-2H3,(H,9,10);/q;;+2/p-2

InChIKey     KSBAEPSJVUENNK-UHFFFAOYSA-L

SMILES       CCCCC(CC)C(=O)O[SnH2]OC(=O)C(CC)CCCC

LogP     2.64 at 25℃

UNSPSC Code   12161600

NACRES     NA.22

SAFETY

Signal word        Danger

Hazard statements     H303-H316-H318-H361-H317-H411

Precautionary statements        P501-P273-P272-P202-P261-P201-P280-P302+P352-P312-P391-P362+P364-P333+P313-P305+P351+P338+P310-P405

PPE Eyeshields, Gloves, type ABEK (EN14387) respirator filter

Hazard Codes     Xi,Xn

Risk Statements 36/37/38-62-52/53-43-41-63

Safety Statements     26-36/37/39-61

WGK Germany 1

RTECS        MO7870000

TSCA   TSCA listed

PackingGroup    III

HS Code      29159000

Storage Class      6.1C - Combustible acute toxic Cat.3

toxic compounds or compounds which causing chronic effects

Hazard Classifications       Aquatic Chronic 3

Eye Dam. 1

Repr. 1B

Skin Sens. 1

REACH Registrations       Active

Stannous octoate Chemical Properties,Uses,Production

Chemical Properties

White or light yellowish brown paste. Soluble in petroleum ether, insoluble in water. low toxicity of Stannous octoate, oral acute poisoning data of rats LD50=3400mg/kg. acute percutaneous poisoning data of rabbits LD50>2000mg/kg.

Uses

Stannous octoate is susceptible to hydrolysis and oxidation and cannot be used in combination polyethers (premixes). Its catalytic activity is higher than that of dibutyltin dilaurate.

Stannous octoate can be used as a catalyst for polyurethane, mainly in the production of soft block polyether type polyurethane foam, but also as a catalyst for polyurethane coatings, elastomers, room temperature curing silicone rubber, etc. As it is a divalent tin compound, it may be oxidized to tetravalent tin compound itself after foaming, and it remains in the foam body to play the role of an antioxidant, which stays in the foam after foaming and has no adverse effect on the foam performance.

Uses

Tin(II) 2-ethylhexanoate is used as a polymerization initiator in polylactic acid production. It acts as an intermediate as well as a catalyst for urethane foams, lubricants, addition agents and stabilizers for transformer oils.

Uses

A catalyst for polylactide polymerization.

Preparation

Stannous octoate is produced by reacting 2-ethylhexanoic acid with sodium hydroxide to form sodium 2-ethylhexanoate, which then undergoes a complex decomposition reaction with stannous chloride by heating in an inert solvent.

Hazard

Toxic material.

Flammability and Explosibility

Non flammable

reaction suitability

core: tin

reagent type: catalyst

reaction type: Ring-Opening Polymerization

Toxicology

Stannous octoate has influence to human health. It may cause an allergic skin reaction, and serious eye damage. In addition, it is suspected of damaging fertility or the unborn child, and harmful to aquatic life with long lasting effects.

Stannous octoate Preparation Products And Raw materials

Raw materials

Tin 2-Ethylhexanoic acid Stannous chloride Sodium hydroxide

Preparation Products

demulsifier SAP series main chain liquid crystalling polysiloxane polyurethane hydrophilic silicone finishing agent

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