CAS 681-84-5|TMOS
| 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 | ChineseUSA | Flash Point | 28.9±0.0 °C |
| Symbol | 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 |
| InChIKey | LFQCEHFDDXELDD-UHFFFAOYSA-N |
| SMILES | CO[Si](OC)(OC)OC |
| Water Solubility | hydrolysis |
Toxicological Information
CHEMICAL IDENTIFICATION |
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 |
|---|---|
| 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 |
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 |
