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Decamethylcyclopentasiloxane (D5) is a volatile cyclic silicone fluid consisting of a five-membered siloxane ring substituted with ten methyl groups.
Decamethylcyclopentasiloxane (D5) is a clear, colorless, odorless, and low-viscosity liquid known for its excellent spreading, lubricating, and emollient properties.
Decamethylcyclopentasiloxane (D5) is widely used in cosmetics, personal care, coatings, and industrial formulations due to its smooth feel, low surface tension, and volatility.
Decamethylcyclopentasiloxane (D5) evaporates slowly, leaving a soft and silky finish on the skin, hair, or treated surface.
CAS Number: 541-02-6
EC Number: 208-764-9
Molecular Formula: C10H30O5Si5
Molecular Weight: 370.77 g/mol
Synonyms: Decamethylcyclopentasiloxane, Cyclopentasiloxane, D5 Silicone, D5 Fluid, Cyclomethicone D5, Silicone D5, Pentameric Dimethylsiloxane, Volatile Silicone D5, Cosmetic Silicone Carrier, Low-Viscosity Silicone Fluid, Decamethylcyclopentasiloxane (D5), D5, Cyclopentasiloxane, Decamethylpentasiloxane, Cyclomethicone D5, D5 Silicone, Cyclopentasiloxane Fluid, Cyclopentasiloxane Compound, Cyclopentasiloxane Material, Cyclopentasiloxane Product, Cyclopentasiloxane Substance, Cyclopentasiloxane Chemical, Cyclopentasiloxane Cosmetic Grade, Cyclopentasiloxane Pharmaceutical Grade, Cyclopentasiloxane Food Grade, Cyclopentasiloxane Technical Grade, Cyclopentasiloxane Industrial Grade, Cyclopentasiloxane Laboratory Grade, Cyclopentasiloxane Research Grade, Cyclopentasiloxane Pure, Cyclopentasiloxane Extra Pure, Cyclopentasiloxane High Purity, Cyclopentasiloxane Refined, Cyclopentasiloxane Stabilized, Cyclopentasiloxane Certified, Cyclopentasiloxane Certified Standard, Cyclopentasiloxane Analytical Standard, Cyclopentasiloxane Laboratory Standard, Cyclopentasiloxane Certified Reagent, Cyclopentasiloxane Laboratory Reagent, Cyclopentasiloxane Test Reagent, Cyclopentasiloxane Assay, Cyclopentasiloxane Bulk Chemical, Cyclopentasiloxane Commercial Grade, Cyclopentasiloxane Raw Material, Cyclopentasiloxane Fine Chemical, Cyclopentasiloxane Specialty Chemical, Cyclopentasiloxane Active Ingredient, Cyclopentasiloxane Functional Ingredient, Cyclopentasiloxane Specialty Ingredient, Cyclopentasiloxane Functional Additive, Cyclopentasiloxane Specialty Additive, Cyclopentasiloxane Silicone Fluid, Cyclopentasiloxane Volatile Silicone, Cyclopentasiloxane Cyclic Silicone, Cyclopentasiloxane Emollient, Cyclopentasiloxane Lubricant, Cyclopentasiloxane Conditioner, Cyclopentasiloxane Spreading Agent, Cyclopentasiloxane Solvent, Cyclopentasiloxane Carrier Fluid, Cyclopentasiloxane Film Former, Cyclopentasiloxane Moisturizing Agent, Cyclopentasiloxane Silky Agent, Cyclopentasiloxane Cosmetic Solvent, Cyclopentasiloxane Hair Conditioning Agent, Cyclopentasiloxane Skin Conditioning Agent, Cyclopentasiloxane Softening Agent, Cyclopentasiloxane Gloss Enhancer, Cyclopentasiloxane Shine Agent, Cyclopentasiloxane Volatile Carrier, Cyclopentasiloxane Silicone Oil, Cyclopentasiloxane Silicone Base, Cyclopentasiloxane Cosmetic Ingredient, Cyclopentasiloxane Skincare Ingredient
APPLICATIONS
Decamethylcyclopentasiloxane (D5) is used in cosmetic and personal care formulations as a carrier and emollient.
Decamethylcyclopentasiloxane (D5) imparts a silky, non-greasy feel to skin and hair.
Decamethylcyclopentasiloxane (D5) provides excellent spreadability and quick evaporation after application.
Decamethylcyclopentasiloxane (D5) is used in hair care products such as conditioners, serums, and sprays.
Decamethylcyclopentasiloxane (D5) reduces frizz and enhances shine without buildup.
Decamethylcyclopentasiloxane (D5) provides smooth detangling and dry conditioning effects.
Decamethylcyclopentasiloxane (D5) is incorporated in skin care products including lotions, creams, and sunscreens.
Decamethylcyclopentasiloxane (D5) acts as a volatile solvent for oils, pigments, and actives.
Decamethylcyclopentasiloxane (D5) improves sensory attributes and enhances absorption.
Decamethylcyclopentasiloxane (D5) is used in antiperspirants and deodorants as a volatile silicone carrier.
Decamethylcyclopentasiloxane (D5) enables even distribution of active ingredients such as aluminum salts.
Decamethylcyclopentasiloxane (D5) provides a dry, powdery skin feel upon evaporation.
Decamethylcyclopentasiloxane (D5) is used in color cosmetics and makeup formulations.
Decamethylcyclopentasiloxane (D5) acts as a pigment dispersant and quick-drying carrier fluid.
Decamethylcyclopentasiloxane (D5) improves smoothness, spread, and product durability.
Decamethylcyclopentasiloxane (D5) is incorporated in silicone-based foundations, primers, and BB creams.
Decamethylcyclopentasiloxane (D5) provides lightweight texture and natural matte finish.
Decamethylcyclopentasiloxane (D5) enhances blending and spreadability on the skin.
Decamethylcyclopentasiloxane (D5) is used in medical and pharmaceutical preparations as a topical excipient.
Decamethylcyclopentasiloxane (D5) aids in controlled release of actives and enhances skin penetration.
Decamethylcyclopentasiloxane (D5) is non-irritating and biocompatible in topical applications.
Decamethylcyclopentasiloxane (D5) is applied in textile and leather treatments.
Decamethylcyclopentasiloxane (D5) provides softness, water repellency, and anti-static performance.
Decamethylcyclopentasiloxane (D5) enhances flexibility and fabric smoothness.
Decamethylcyclopentasiloxane (D5) is utilized in surface treatment formulations.
Decamethylcyclopentasiloxane (D5) acts as a spreading and leveling agent for coatings and polishes.
Decamethylcyclopentasiloxane (D5) provides uniform film formation and high gloss.
Decamethylcyclopentasiloxane (D5) is used in automotive polishes and protective coatings.
Decamethylcyclopentasiloxane (D5) delivers superior gloss and easy application.
Decamethylcyclopentasiloxane (D5) enhances hydrophobicity and surface protection.
Decamethylcyclopentasiloxane (D5) is incorporated in industrial lubricants and release agents.
Decamethylcyclopentasiloxane (D5) provides slip and anti-stick properties in molding and extrusion.
Decamethylcyclopentasiloxane (D5) reduces surface friction and wear.
Decamethylcyclopentasiloxane (D5) is used as a carrier for silicone resins and elastomers.
Decamethylcyclopentasiloxane (D5) acts as a diluent during silicone resin formulation.
Decamethylcyclopentasiloxane (D5) evaporates completely, leaving a durable silicone film.
Decamethylcyclopentasiloxane (D5) is applied in paints and coatings as a slip modifier.
Decamethylcyclopentasiloxane (D5) improves mar resistance, leveling, and surface smoothness.
Decamethylcyclopentasiloxane (D5) enhances gloss retention and spreadability.
Decamethylcyclopentasiloxane (D5) is used in cleaning and degreasing formulations.
Decamethylcyclopentasiloxane (D5) dissolves oily residues without leaving residue.
Decamethylcyclopentasiloxane (D5) provides fast drying and low surface tension.
Decamethylcyclopentasiloxane (D5) is suitable for heat transfer and specialty fluid applications.
Decamethylcyclopentasiloxane (D5) exhibits low surface energy and high thermal stability.
Decamethylcyclopentasiloxane (D5) performs as a dielectric and cooling medium in electronics.
Decamethylcyclopentasiloxane (D5) is used as a conditioning agent in personal care products.
Decamethylcyclopentasiloxane (D5) imparts a silky, smooth texture to skin and hair formulations.
Decamethylcyclopentasiloxane (D5) provides lightweight, non-greasy emolliency.
Decamethylcyclopentasiloxane (D5) is applied in hair conditioners and serums.
Decamethylcyclopentasiloxane (D5) enhances detangling and shine.
Decamethylcyclopentasiloxane (D5) reduces combing friction and frizz.
Decamethylcyclopentasiloxane (D5) is used in antiperspirants and deodorants.
Decamethylcyclopentasiloxane (D5) serves as a carrier for active aluminum salts.
Decamethylcyclopentasiloxane (D5) ensures fast drying and smooth application.
Decamethylcyclopentasiloxane (D5) is incorporated in facial moisturizers.
Decamethylcyclopentasiloxane (D5) enhances spreadability and sensory performance.
Decamethylcyclopentasiloxane (D5) forms a breathable film without clogging pores.
Decamethylcyclopentasiloxane (D5) is used in makeup formulations.
Decamethylcyclopentasiloxane (D5) improves slip and texture in foundations.
Decamethylcyclopentasiloxane (D5) provides a matte finish with soft-focus effect.
Decamethylcyclopentasiloxane (D5) is applied in sunscreens.
Decamethylcyclopentasiloxane (D5) acts as a solvent for UV filters.
Decamethylcyclopentasiloxane (D5) ensures even dispersion and smooth film formation.
Decamethylcyclopentasiloxane (D5) is used in hair sprays.
Decamethylcyclopentasiloxane (D5) provides excellent volatility for fast drying.
Decamethylcyclopentasiloxane (D5) contributes to long-lasting hold and natural feel.
Decamethylcyclopentasiloxane (D5) is incorporated in creams and lotions.
Decamethylcyclopentasiloxane (D5) enhances spreadability of actives.
Decamethylcyclopentasiloxane (D5) provides a luxurious sensory experience.
Decamethylcyclopentasiloxane (D5) is used in cleansing oils and makeup removers.
Decamethylcyclopentasiloxane (D5) dissolves waxes and long-wear cosmetics efficiently.
Decamethylcyclopentasiloxane (D5) leaves a soft, residue-free afterfeel.
Decamethylcyclopentasiloxane (D5) is applied in wound care products.
Decamethylcyclopentasiloxane (D5) forms a protective barrier while maintaining skin breathability.
Decamethylcyclopentasiloxane (D5) helps reduce skin irritation and moisture loss.
Decamethylcyclopentasiloxane (D5) is used in industrial lubricants.
Decamethylcyclopentasiloxane (D5) provides thermal and oxidative stability.
Decamethylcyclopentasiloxane (D5) acts as a low-viscosity base fluid in precision applications.
Decamethylcyclopentasiloxane (D5) is incorporated in textile finishing agents.
Decamethylcyclopentasiloxane (D5) improves fabric softness and water repellency.
Decamethylcyclopentasiloxane (D5) imparts smooth texture and antistatic properties.
Decamethylcyclopentasiloxane (D5) is used in polish formulations.
Decamethylcyclopentasiloxane (D5) enhances shine and ease of application.
Decamethylcyclopentasiloxane (D5) improves durability of surface coatings.
Decamethylcyclopentasiloxane (D5) is applied in medical device lubricants.
Decamethylcyclopentasiloxane (D5) ensures biocompatible surface performance.
Decamethylcyclopentasiloxane (D5) provides low friction for silicone-based assemblies.
DESCRIPTION
Decamethylcyclopentasiloxane (D5) is a cyclic volatile siloxane composed of five dimethylsiloxane units.
Decamethylcyclopentasiloxane (D5) is widely used as a volatile carrier and conditioning agent.
Decamethylcyclopentasiloxane (D5) provides smooth spreading and non-oily sensory benefits.
Decamethylcyclopentasiloxane (D5) has the CAS number 541-02-6.
Decamethylcyclopentasiloxane (D5) has the EC number 208-764-9.
Decamethylcyclopentasiloxane (D5) has the molecular formula C10H30O5Si5.
Decamethylcyclopentasiloxane (D5) has a molecular weight of 370.77 g/mol.
Decamethylcyclopentasiloxane (D5) appears as a clear, colorless liquid.
Decamethylcyclopentasiloxane (D5) is odorless or has a very slight silicone-like scent.
Decamethylcyclopentasiloxane (D5) has a boiling point around 210°C.
Decamethylcyclopentasiloxane (D5) has a flash point near 77°C.
Decamethylcyclopentasiloxane (D5) exhibits low surface tension and high spreadability.
Decamethylcyclopentasiloxane (D5) is immiscible with water but soluble in hydrocarbons and alcohols.
Decamethylcyclopentasiloxane (D5) is thermally and chemically stable under normal conditions.
Decamethylcyclopentasiloxane (D5) should be stored in tightly closed containers, away from ignition sources and oxidizing agents.
Decamethylcyclopentasiloxane (D5) is a volatile cyclic silicone composed of alternating silicon and oxygen atoms with methyl substituents.
Decamethylcyclopentasiloxane (D5) is a clear, colorless, odorless liquid with a low viscosity and high spreadability.
Decamethylcyclopentasiloxane (D5) evaporates cleanly without residue, leaving a smooth and soft surface.
Decamethylcyclopentasiloxane (D5) exhibits low surface tension, enabling rapid and uniform spreading over skin or solid surfaces.
Decamethylcyclopentasiloxane (D5) has excellent compatibility with other silicones, emollients, and cosmetic ingredients.
It provides exceptional sensory performance in formulations requiring a light, non-greasy texture.
Decamethylcyclopentasiloxane (D5) is chemically inert, thermally stable, and non-corrosive under normal conditions.
Decamethylcyclopentasiloxane (D5) is resistant to oxidation and hydrolysis within a neutral pH range.
Decamethylcyclopentasiloxane (D5) shows good solubility in most silicone oils and organic solvents.
Decamethylcyclopentasiloxane (D5) is biocompatible and non-sensitizing in topical use.
Decamethylcyclopentasiloxane (D5) complies with global cosmetic regulations for volatile silicones.
It is suitable for use in both rinse-off and leave-on personal care formulations.
PROPERTIES
Appearance: Clear, colorless liquid
Odor: Odorless or very mild
Density: 0.95 g/cm³ (25°C)
Boiling Point: 210°C
Melting Point: -42°C
Flash Point: 77°C (closed cup)
Viscosity: 4 – 5 cSt (25°C)
Vapor Pressure: 0.3 mmHg (25°C)
Refractive Index: 1.396 (25°C)
Surface Tension: 18 – 20 mN/m
Solubility: Insoluble in water; soluble in alcohols, hydrocarbons, and silicone fluids
Dielectric Constant: 2.7 (25°C)
Stability: Stable under normal use; avoid strong acids and oxidizers
Storage Temperature: Store between 5–35°C in sealed containers away from direct sunlight
FIRST AID
Inhalation:
Move person to fresh air.
Seek medical advice if respiratory symptoms occur.
Skin Contact:
Wash with soap and water.
Seek medical attention if irritation develops.
Eye Contact:
Flush with plenty of water for at least 15 minutes.
Seek medical attention if irritation persists.
Ingestion:
Rinse mouth with water.
Do not induce vomiting.
Seek medical attention immediately if large amounts are ingested.
Note to Physicians:
Treat symptomatically.
No specific antidote is required.
HANDLING AND STORAGE
Handling:
Avoid contact with eyes and prolonged skin exposure.
Use in well-ventilated areas to minimize vapor accumulation.
Wear protective equipment during bulk handling.
Ventilation:
Provide adequate ventilation to prevent vapor buildup.
Avoidance:
Avoid strong oxidizing materials and open flames.
Prevent contamination with incompatible chemicals.
Spill and Leak Procedures:
Absorb spills with inert materials such as sand or diatomaceous earth.
Clean surfaces thoroughly to avoid slip hazards.
Storage:
Store in tightly closed containers in a cool, dry, well-ventilated area.
Keep away from heat sources and direct sunlight.
Do not store near acids or strong oxidizers.
