Product Code：SP8007
Product Name：Heptamethyltrisiloxane
Product Introduction：
Heptamethyltrisiloxane is a linear, hydrogen-terminated trisiloxane with seven methyl groups. The reactive Si–H bond enables hydrosilylation reactions for attaching functional groups. It serves as a key intermediate for silicone surfactants, release coatings, and hydrophobic surface modifiers. Its low surface tension and high spreading ability make it ideal for polyurethane foam stabilizers and agricultural adjuvants.
Basic Information
- Chinese name：七甲基三硅氧烷
- CAS number：[1873-88-7]
- Molecular formula：C₇H₂₂O₂Si₃
Physical properties
- Molecular weight：222.51
- Appearance：Colorless transparent liquid
- Molecular Weight：222.51
- Relative Density：0.819
- Flash Point, ℃：22
- Refractive Index n²⁰D nD20：1.382
Technical indicators
| Project |
Indicator |
| Appearance |
Colorless transparent liquid |
| Purity,% |
≥99.0 |
Characteristic advantages
- Capable of introducing various functional groups to produce a wide range of specialty organo-modified silicone oils
- Exhibits excellent hydrophobicity and low surface tension
Application field
- Can be used as a pesticide spreader and penetration adjuvant
- cts as a leveling agent and wetting aid in waterborne coatings, inks, and adhesives
- Serves as a foam stabilizer for polyurethane foams
- Functions as an emollient in personal care products
- Used as an intermediate to prepare amino silicone oil, epoxy silicone oil, polyether silicone oil, and others
Safe handling
- Wear eye protection and protective gloves as required while handling the product
- Use the product in a well ventilated area
- Please consult our MSDS
Use storage
- When stored in its original container below 40°C and unopened, the shelf life is 2 years. It can still be used after re-inspection
- Store in a cool and dry place out of direct sunlight
- Keep out of the reach of children
Packaging Information
- Available in 25KGS drum, 200KGS drum or 1000KGS IBC
