Dibutyltin diacetate is an organic compound with the structural formula of (C4H9) 2Sn (oocch3) 2. Light yellow or colorless transparent liquid with acetic acid odor, solid or semi-solid below 10 ℃. It belongs to gel catalyst, which is mainly used as curing catalyst of room temperature silicone rubber, especially for deacetylated silicone products, and can also be used as catalyst. Acute toxicity: oral LD50 of rats: 110 mg / kg.
Chinese Name: dibutyltin diacetate
Foreign name: dibutyl tin diacetate
Alias dibutyltin diacetate; Bis (acetoxy) dibutyltin; Dibutyltin diacetate; Dibutyltin acetate; Tin dibutyldiacetate< https://baike.baidu.com/item/%E4%BA%8C%E6%AD%A3%E4%B8%81%E5%9F%BA%E4%BA%8C%E4%B9%99%E9%85%B8%E9%94%A1/15558499?fromModule=lemma_inlink >； Dibutyltin acetate
Chemical formula (C4H9) 2Sn (oocch3) 2
Molecular weight: 351.0
CAS accession No.: 1067-33-0
Melting point: 10 ℃
Boiling point 142 to 145 ℃ (10 mmHg)
Density: 1.32 g / cm ³
Appearance: light yellow or colorless transparent liquid with acetic acid smell
Flash point 230 ℉ (below)
Application: mainly used as curing catalyst for room temperature silicone rubber, especially for deacetylated silicone products, and also as catalyst for Polyurethane Coatings
Security description: S26, S36 / 37 / 39, S45, S37 / 39, s28a
Hazard symbol t
Hazard Description: R25, R34, R36 / 38
UN dangerous goods No.: 2922
physical property
Specific gravity (H2O = 1): 1.30
Physical and chemical properties: This product is a light yellow or colorless transparent liquid with acetic acid odor, and it is solid or semi-solid below 10 ℃
Freezing point: 8 ~ 10 ℃
Specific gravity (20 ℃): 1.32 ± 0.005g/ml
Boiling point: 140-144 ℃ / 10mmhg.
Quality index: appearance: colorless or light yellow transparent liquid
Sn content: 32.5 ± 0.5%
Relative density (25 ℃): about 1.30
Tin content: 32.0-33.8%
chemical property
Vapor density: 12 (vs air)
Vapor pressure: 1.3 mm Hg (25 ° C)
Refractive index: N20 / D 1.471 (lit.)
Water solubility: insoluble
CAS database: 1067-33-0 (CAS database reference)
NIST：Dibutyltin diacetate(1067-33-0)
EPA：Stannane, bis(acetyloxy)dibutyl-(1067-33-0)
security information
WGK Germany :3
RTECS No.: wh6880000
TSCA :Yes
HazardClass :6.1
PackingGroup :II
Customs Code: 29310095
Toxic substances data: 1067-33-0 (hazardous substances data)
purpose
Gel catalyst is mainly used as curing catalyst of silicone rubber at room temperature, especially for deacetylated silicone products; Its characteristic is that its catalytic speed is faster than dibutyltin dilaurate. It can be used for polyurethane elastomer, spraying rigid polyurethane foam, hard foam high resilience molding foam, etc. In order to reduce its acetic acid odor, dibutyltin dilaurate can be used in combination with dibutyltin dilaurate, which is usually used: dibutyltin dilaurate is 1:9 or 2:8. This product should be tightly capped immediately after use. It is easy to hydrolyze when exposed to the air, and solids will precipitate from the bottle mouth. It can also be used as a catalyst for polyurethane coatings.
It should be kept dry during storage and the temperature should be above 10 ℃. Crystals will precipitate below 10 ℃, and the use effect will not be affected after heating and melting.
