CAS No: 556-67-2 Octamethylcy Clotetrasiloxane Iota D4

• CAS No.: 556-67-2
• Formula: C8h24o4si4
• EINECS: 209-136-7
• Appearance: Liquid
• Usage: Oil Drilling Auxiliary Agent, Water Treatment Chemicals, Rubber Auxiliary Agents, Plastic Auxiliary Agents, Coating Auxiliary Agents, Textile Auxiliary Agents, Paper Chemicals, Surfactants, Leather Auxiliary Agents, Electronics Chemicals
• Melting Point: 17-18ºC
• Model NO.: IOTA D4
• Relative Density: 0.956g/Cm³(25ºC)
• Octamethylcy-Clotetrasiloxane Content: ≥99.8
• Refractive Index(20ºC): 1.3960~1.3970
• Transport Package: 25kg or 200kg/Drum
• Trademark: Iota
• Origin: Anhui Bengbu
• HS Code: 391000
• Production Capacity: 1000tons

Product Description

Octamethylcy clotetrasiloxane IOTA D4
Molecular formula:   (CH3)8Si4O4

CAS Number: 556-67-2

Physicochemical property:

Melting point:          17-18ºC
Boiling point:           175-176ºC
Flash point :             55ºC
Relative density:      0.956g/cm³(25ºC)

Technical index:

1, Appearance: Colorless and transparent liquid
2, Chroma / platinum - cobalt color: ≤10
3, Refractive index(20ºC):  1.3960~1.3970
4, Octamethylcy-clotetrasiloxane content: ≥99.8

Performance and Application:

This product is colorless and insoluble in water, soluble in organic solvents such as benzene. The organic silicon polymer, which is synthesized by acid base catalysis, is the basic raw material of silicone oil and silicone rubber.

Packaging and storage:

1. Packed in plastic drum, net weight 190kg / barrel or ton bucket packaging or standard container packaging;
2. The product storage in a cool and dry place, waterproof, fireproof, shall not be mixed with oxidizing agents, acids, alkalis, released.
3. Storage areas shall be provided with appropriate varieties and quantities of fire fighting equipment, leakage emergency handling equipment and suitable housing materials.
4. Transportation of dangerous goods. Light carry and light discharge, to prevent damage to packaging and containers.

Stability: specify the use and storage conditions (closed containers)
No match: Strong oxidizing agent, acid, alkali.
To avoid contact with the conditions: non compatible material, all kinds of heat source and fire, moisture and water.
Decomposition products: may produce carbon oxides, carbon hydride, silicon oxide, combustion smoke or thermal decomposition and combustion in fire.
Polymerization hazard: may occur.

What is cyclotetramethylsiloxane (D4)?
Cyclotetramethylsiloxane is a siloxane compound containing four methyl groups in the molecule. It is a common silicone polymer.

What are the chemical properties of D4?
D4 is a transparent liquid with low viscosity and low surface tension, and has good volatility. It contains siloxane chains in its chemical structure, making it inert and stable.

What are the applications of D4 in industry?
D4 is commonly used in industry as a solvent, lubricant and cleaner. It can also be used in synthetic silicone products, including silicone rubber and silicone resin.

Does cyclotetramethylsiloxane have any impact on the environment?
Cyclotetramethylsiloxane volatilizes in the atmosphere and degrades in water. Studies have shown that high concentrations of siloxanes may have some effects on aquatic life and are therefore regulated in some areas.

What are the health effects and safety of D4?
D4 is considered relatively safe under normal conditions of use, but a large number of research and regulatory agencies are concerned about its potential accumulation and effects in the environment.