TETRAOCTADECYLOXYSILANE

Modify Date: 2025-08-25 15:35:57

TETRAOCTADECYLOXYSILANE Structure
TETRAOCTADECYLOXYSILANE structure
Common Name TETRAOCTADECYLOXYSILANE
CAS Number 18816-28-9 Molecular Weight 1106.03000
Density 0.865g/cm3 Boiling Point 697.6ºC at 760mmHg
Molecular Formula C72H148O4Si Melting Point N/A
MSDS N/A Flash Point 230ºC

 Names

Name tetraoctadecyl silicate
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.865g/cm3
Boiling Point 697.6ºC at 760mmHg
Molecular Formula C72H148O4Si
Molecular Weight 1106.03000
Flash Point 230ºC
Exact Mass 1105.11000
PSA 36.92000
LogP 26.53440
Vapour Pressure 1.65E-18mmHg at 25°C
Index of Refraction 1.461

 MSDS


Section 1: Product Identification
Chemical Name:Tetraoctadecyloxysilane
CAS Registry Number:18816-28-9
Formula:Si(OC18H37)4
EINECS Number:242-596-7
Chemical Family:organosilicon compounds
Synonym:Silicic acid, tetraoctadecyl ester, tetra(tetraoctadecyl)silicate

Section 2: Composition and Information on Ingredients
IngredientCAS NumberPercentACGIH (TWA)OSHA (PEL)
Title Compound18816-28-9100%no datano data

Section 3: Hazards Identification
Emergency Overview:Irritating to skin, eyes, and respiratory tract.
Primary Routes of Exposure:Ingestion, inhalation, skin, eyes.
Eye Contact:Causes moderate irritation of the eyes.
Skin Contact:Causes slight to mild irritation of the skin.
Inhalation:Irritating to the nose, mucous membranes and respiratory tract.
Ingestion:No specific information is available on the physiological effects of ingestion.
Acute Health Affects:Irritating to skin, eyes, and respiratory tract.
Chronic Health Affects:No information available on long-term chronic effects.
NTP:No
IARC:No
OSHA:No

SECTION 4: First Aid Measures
Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need
Eye Exposure:
assistance in keeping their eye lids open. Get immediate medical attention.
Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if
Skin Exposure:
irritation persists.
Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty
Inhalation:
in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance.
Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce
Ingestion:
vomiting only if directed by medical personnel.

SECTION 5: Fire Fighting Measures
Flash Point:no data
Autoignition Temperature:no data
Explosion Limits:no data
Extinguishing Medium:carbon dioxide or dry powder
Fire fighters should be equipped with a NIOSH approved positive pressure self-contained breathing apparatus
Special Fire Fighting Procedures:
and full protective clothing.
Hazardous Combustion andIf involved in a fire, this material may emit toxic and corrosive fumes.
Decomposion Products:
Unusual Fire or Explosion Hazards: No unusual fire or explosion hazards.

SECTION 6: Accidental Release Measures
Spill and Leak Procedures:Sweep up the solid and dispose of properly.

SECTION 7: Handling and Storage
Handling and Storage:Store the material in a sealed container. Keep away from heat and moisture.

SECTION 8: Exposure Controls and Personal Protection
Eye Protection:Always wear approved safety glasses when handling a chemical substance in the laboratory.
Skin Protection:Wear protective clothing and gloves. Consult with glove manufacturer to determine the proper type of glove.
Ventilation:Handle the material in an efficient fume hood.
If ventilation is not available a respirator should be worn. The use of respirators requires a Respirator
Respirator:
Protection Program to be in compliance with 29 CFR 1910.134.
Ventilation:Handle the material in an efficient fume hood.
Additional Protection:No additional protection required.

SECTION 9: Physical and Chemical Properties
Color and Form:white pwdr.
Molecular Weight:1106.06
Melting Point:no data
Boiling Point:no data
Vapor Pressure:no data
Specific Gravity:no data
Odor:not determined
Solubility in Water:insoluble

SECTION 10: Stability and Reactivity
Stability:air and moisture stable
Hazardous Polymerization:no hazardous polymerization
Conditions to Avoid:Contact with moisture
Incompatibility:Water, strong acids, strong oxidizing agents and halogens
Decomposition Products:carbon monoxide, carbon dioxide, silicon dioxide and organic fumes.

SECTION 11: Toxicological Information
RTECS Data:No information available in the RTECS files.
Carcinogenic Effects:No data available
Mutagenic Effects:No data available
Tetratogenic Effects:No data available

SECTION 12: Ecological Information
Ecological Information:No information available

SECTION 13: Disposal Considerations
Disposal:Dispose of according to federal, state, and local regulations.

SECTION 14: Transportation
Shipping Name (CFR):Non-hazardous
Hazard Class (CFR):NA
Additional Hazard Class (CFR):NA
Packaging Group (CFR):NA
UN ID Number (CFR):NA
Shipping Name (IATA):Non-hazardous
Hazard Class (IATA):NA
Additional Hazard Class (IATA):NA
Packaging Group (IATA):NA
UN ID Number (IATA):NA

SECTION 15: Regulatory Information
TSCA:Not listed in the TSCA inventory.
SARA (Title 313):Title compound not listed.
Second Ingredient:none


SECTION 16 - ADDITIONAL INFORMATION
N/A

 Safety Information

HS Code 2920909090

 Customs

HS Code 2920909090
Summary 2920909090 esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

 Synonyms

EINECS 242-596-7
Tetraoctadecyl orthosilicate
Tetrastearyl silicate
Kieselsaeure-tetraoctadecylester
Tetraoctadecylorthosilicat
silicic acid tetraoctadecyl ester
TETRAOCTADECYLOXYSILANE
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