TMOS

Modify Date: 2024-01-01 18:05:18

TMOS Structure
TMOS structure
 Common Name TMOS
CAS Number 681-84-5 Molecular Weight 152.221
Density 1.0±0.1 g/cm3 Boiling Point 121.2±8.0 °C at 760 mmHg
Molecular Formula C4H12O4Si Melting Point −4 °C(lit.)
MSDS Chinese USA Flash Point 28.9±0.0 °C
Symbol GHS02 GHS05 GHS06
GHS02, GHS05, GHS06		 Signal Word Danger

 Names

Name Tetramethyl orthosilicate
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.0±0.1 g/cm3
Boiling Point 121.2±8.0 °C at 760 mmHg
Melting Point −4 °C(lit.)
Molecular Formula C4H12O4Si
Molecular Weight 152.221
Flash Point 28.9±0.0 °C
Exact Mass 152.050491
PSA 36.92000
LogP 2.97
Vapour density 5.25 (vs air)
Vapour Pressure 17.7±0.2 mmHg at 25°C
Index of Refraction 1.382
Water Solubility hydrolysis

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
VV9800000
CHEMICAL NAME :
Silicic acid, tetramethyl ester
CAS REGISTRY NUMBER :
681-84-5
LAST UPDATED :
199806
DATA ITEMS CITED :
25
MOLECULAR FORMULA :
C4-H12-O4-Si
MOLECULAR WEIGHT :
152.25
WISWESSER LINE NOTATION :
1O-SI-O1&O1&O1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
700 mg/kg
TOXIC EFFECTS :
Kidney, Ureter, Bladder - changes in tubules (including acute renal failure, acute tubular necrosis)
REFERENCE :
30ZNA5 "Dangerous Properties of Industrial Materials," Sax, N.I., New York, Van Nostrand Reinhold, 1980 Volume(issue)/page/year: 3,935,1968
TYPE OF TEST :
LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
250 ppm/4H
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AMIHBC AMA Archives of Industrial Hygiene and Occupational Medicine. (Chicago, IL) V.2-10, 1950-54. For publisher information, see AEHLAU. Volume(issue)/page/year: 4,119,1951
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
100 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,1222,1986
TYPE OF TEST :
LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
1 gm/m3/10M
TOXIC EFFECTS :
Sense Organs and Special Senses (Eye) - effect, not otherwise specified Musculoskeletal - other changes
REFERENCE :
NDRC** National Defense Research Committee, Office of Scientific Research and Development, Progress Report. Volume(issue)/page/year: NDCrc-132,MAY1942
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
250 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
CBCCT* "Summary Tables of Biological Tests," National Research Council Chemical-Biological Coordination Center. (National Academy of Science Library, 2101 Constitution Ave., NW, Washington, DC 20418) Volume(issue)/page/year: 2,56,1950
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
17 mL/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AMIHBC AMA Archives of Industrial Hygiene and Occupational Medicine. (Chicago, IL) V.2-10, 1950-54. For publisher information, see AEHLAU. Volume(issue)/page/year: 4,119,1951
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
100 mg/kg
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - acute pulmonary edema Kidney, Ureter, Bladder - changes in tubules (including acute renal failure, acute tubular necrosis)
REFERENCE :
30ZNA5 "Dangerous Properties of Industrial Materials," Sax, N.I., New York, Van Nostrand Reinhold, 1980 Volume(issue)/page/year: 3,935,1968
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Mammal - species unspecified
DOSE/DURATION :
1 gm/kg
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 39(4),86,1974 *** REVIEWS *** ACGIH TLV-TWA 6 mg/m3 (1 ppm) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD:air-CL 5 ppm (30 mg/m3) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: 3,169,1971 OSHA PEL (Construc):8H TWA 5 ppm (30 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Shipyard):8H TWA 5 ppm (30 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 1 ppm (6 mg/m3) JAN 1993 OEL-BELGIUM:TWA 1 ppm (6 mg/m3) JAN 1993 OEL-DENMARK:STEL 1 ppm (6 mg/m3) JAN 1993 OEL-FINLAND:TWA 5 ppm (30 mg/m3);STEL 10 ppm (60 mg/m3) JAN 1993 OEL-FRANCE:TWA 1 ppm (6 mg/m3) JAN 1993 OEL-THE NETHERLANDS:TWA 1 ppm (6 mg/m3) JAN 1993 OEL-SWITZERLAND:TWA 1 ppm (6 mg/m3) JAN 1993 OEL-UNITED KINGDOM:TWA 1 ppm (6 mg/m3);STEL 5 ppm (30 mg/m3) JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO METHYL SILICATE-air:10H TWA 1 ppm REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992

 Safety Information

Symbol GHS02 GHS05 GHS06
GHS02, GHS05, GHS06
Signal Word Danger
Hazard Statements H226-H315-H318-H330
Precautionary Statements P210-P260-P280-P304 + P340 + P310-P305 + P351 + P338 + P310-P370 + P378
Personal Protective Equipment Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes T+:Verytoxic;
Risk Phrases R10;R26;R37/38;R41
Safety Phrases S16-S26-S36/37/39-S45-S28A
RIDADR UN 2606 6.1/PG 1
WGK Germany 3
RTECS VV9800000
Packaging Group I
Hazard Class 6.1
HS Code 29209085

 Synthetic Route

 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%

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 Synonyms

Silane, tetra(methoxy)-
tetramethoxy-silan
Tetra-methyl orthosilicate
tl190
methyl orthosilicate
SILICATE,METHYL
silicon tetramethoxide
Tetramethosysilan
Dynasil M
tetramethoxylsilane
O-METHYLSILICATE
EINECS 211-656-4
Silicic acid (HSiO), tetramethyl ester
Tetramethyl silicate
tetramethoxy-silane
METHYLSILICATE
Tetramethyl orthosilicate
TMOS
MFCD00008341
tetramethoxysilane
tetramethyloxysilane
orthosilicic acid tetramethyl ester
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Chemsrc provides TMOS(CAS#:681-84-5) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of TMOS are included as well.>> amp version: TMOS

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