Dibutyltin maleate
Di-n-butyl(maleate)tin
CAS: 78-04-6;53507-04-3
Molecular Formula: C12H20O4Sn
Dibutyltin maleate - Names and Identifiers
| Name | Di-n-butyl(maleate)tin |
| Synonyms | bt31 DBTM dibutyltin advastabdbtm advastabt340 advastabt290 Dibutyltin Maleate (E)-but-2-enedioate (Z)-but-2-enedioate di-Butyl tin maleate Di-n-butyl(maleate)tin dibutylstannylenemaleate 2-dioxastannepin-4,7-dione,2,2-dibutyl-3 3,2-Dioxastannepin-4,7-dione,2,2-dibutyl-1 1,3,2-Dioxastannepin-4,7-dione,2,2-dibutyl- |
| CAS | 78-04-6 53507-04-3 |
| EINECS | 201-077-5 |
| InChI | InChI=1/C4H4O4.2C4H9.Sn/c5-3(6)1-2-4(7)8;2*1-3-4-2;/h1-2H,(H,5,6)(H,7,8);2*1,3-4H2,2H3;/q;;;+2/p-2/b2-1+;;;/rC8H18Sn.C4H4O4/c1-3-5-7-9-8-6-4-2;5-3(6)1-2-4(7)8/h3-8H2,1-2H3;1-2H,(H,5,6)(H,7,8)/q+2;/p-2/b;2-1+ |
Dibutyltin maleate - Physico-chemical Properties
| Molecular Formula | C12H20O4Sn |
| Molar Mass | 346.99 |
| Density | 1,318 g/cm3 |
| Melting Point | 135-140°C(lit.) |
| Boling Point | 324.1±25.0 °C(Predicted) |
| Flash Point | 204°C |
| Appearance | clear liquid |
| Specific Gravity | 1.318 |
| Color | Light yellow to Yellow to Orange |
| Storage Condition | under inert gas (nitrogen or Argon) at 2-8°C |
| Sensitive | 2: reacts with aqueous acid |
| Refractive Index | 1.502 |
| MDL | MFCD00151344 |
| Physical and Chemical Properties | White powder. Melting point 108-113 °c. Slightly soluble in benzene, toluene, insoluble in water. |
| Use | Used as a heat stabilizer in PVC hard transparent products |
Dibutyltin maleate - Risk and Safety
| Risk Codes | R24/25 - R26 - Very Toxic by inhalation R36/37/38 - Irritating to eyes, respiratory system and skin. R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R68 - Possible risk of irreversible effects R48/25 - R43 - May cause sensitization by skin contact R34 - Causes burns R23 - Toxic by inhalation R22 - Harmful if swallowed R61 - May cause harm to the unborn child R60 - May impair fertility |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S28 - After contact with skin, wash immediately with plenty of soap-suds. S36/37 - Wear suitable protective clothing and gloves. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S22 - Do not breathe dust. |
| UN IDs | UN 3146 6.1/PG 2 |
| WGK Germany | 3 |
| RTECS | JH4735000 |
| TSCA | Yes |
| HS Code | 29349990 |
| Hazard Class | 6.1(b) |
| Packing Group | III |
| Toxicity | LDLo oral in mouse: 470mg/kg |
Dibutyltin maleate - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | This product is a heat stabilizer for polyvinyl chloride, with excellent heat resistance and transparency, no vulcanization pollution, the long-term heat resistance is particularly good, and yellowing of the product during high-temperature processing can be prevented. The product is especially suitable for hard transparent products, and its melting point is high, and the softening point and impact degree of the hard product will not be reduced. The general dosage is 0.5-2%, and the barium soap or cadmium soap has a synergistic effect, which can further improve the stability effect, and the transparency and heat resistance of the product can be improved by using the two butyl tin laurate, in combination with epoxy compounds can reduce its tear. The product is lack of lubricity, poor processing performance; Due to volatility; Sometimes foaming during processing; And, under the action of hydrogen chloride generated by heating, the product will be converted into fumarate, decreased compatibility with the resin, easy to spray Frost. In order to overcome these disadvantages, many modified varieties have been developed. used as heat stabilizer in PVC rigid transparent products condensation catalyst. Gasoline anti-explosion agent. Polyvinyl chloride (PVC) heat stabilizer, has excellent heat resistance and transparency, no vulcanization pollution, long-term heat resistance is particularly good, can prevent the high temperature processing products yellowing. |
| production method | results from the reaction of dibutyltin oxide and maleic anhydride. |
| category | toxic substances |
| toxicity grade | high toxicity |
| Acute toxicity | oral-mouse LDL0: 470 mg/kg |
| flammability hazard characteristics | open flame flammability |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored and transported separately from food raw materials |
| fire extinguishing agent | carbon dioxide, sand, water, foam |
| Occupational Standard | TWA 0.1 mg (tin)/m3; Tel 0.2 mg (tin)/M3 |
Last Update：2024-04-10 22:29:15
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