Hydrogen Terminated Silicone Oil
Chemical Name: | Hydrogen Terminated Silicone Oil |
Product Category: | Silicone Fluids– Products |
Structural Formula: | |
CAS No.: | 70900-21-9 |
Molecular Formula: | C6H20O2Si3 |
Molecular Weight: | 208.4783 |
Hydrogen Terminated Silicone Oil Description
Hydroxy Terminated Silicone Oil(CAS 70900-21-9) also known as Hydroxy Terminated Polydimethylsiloxane. It is the basic intermediate raw material of hydrosily lation reaction, which is often used to manufacture various linear modified silicone fluid with terminal hydrogen reactivity, and it is the key intermediate of block copoly merization reaction.
Product Type | Si-H Content | Viscosity (25℃)/(mm2/s) | Volatile Substances (150℃,1.5h) |
HS-HT65 | 1.50-1.80% | 55-75 | ≤3.0% |
HS-HT120 | 0.90-1.10% | 105-135 | |
HS-HT200 | 0.60-0.80% | 180-220 | |
HS-HT280 | 0.50-0.60% | 250-310 | |
HS-HT460 | 0.40-0.50% | 410-510 |
Density | 0.971g/mL at 25°C |
Boiling Point | 230°C(lit.) |
Flash Point | 215°F |
Refractive index | n20/D 1.406 |
Storage Conditions | Room Temperature |
Specific gravity | 0.90 |
Appearance | Colorless transparent without visible impurities |
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Hydrogen Terminated Silicone Oil: Guide
Hydroxy Terminated Silicone Oil also known as Hydroxy Terminated Polydimethylsiloxane. CAS 70900-21-9 silicone oil is a type of silicone oil produced by reacting tetramethyldisiloxane as a capping agent with octamethylcyclotetrasiloxane (D4 for short), using sulfuric acid and other acidic substances as catalysts.
The molecular weight and hydrogen content of the product differ depending on the ratio of the capping agent to D4 in the preparation of end hydrogen silicone oil. Both ends of the terminated hydrogen silicone oil contain silicon hydrogen bonds, which are sensitive to acid and alkali substances.
Terminated hydrogen silicone oil is non-toxic, odorless and transparent liquid, because the end group in the molecular structure contains active Si-H bond, so it has higher activity than 203, CAS 70900-21-9 silicone oil is an important key reactive intermediate.
The molecular weight and hydrogen content of the product differ depending on the ratio of the capping agent to D4 in the preparation of end hydrogen silicone oil. Both ends of the terminated hydrogen silicone oil contain silicon hydrogen bonds, which are sensitive to acid and alkali substances.
Terminated hydrogen silicone oil is non-toxic, odorless and transparent liquid, because the end group in the molecular structure contains active Si-H bond, so it has higher activity than 203, CAS 70900-21-9 silicone oil is an important key reactive intermediate.