| Description | |
|---|---|
| Catalogue Number | 818737 |
| Synonyms | Trimethylchlorosilane, Trimethylsilyl chloride, TMCS |
| Description | Chlorotrimethylsilane |
| Product Information | |
|---|---|
| CAS number | 75-77-4 |
| EC number | 200-900-5 |
| Hill Formula | C₃H₉ClSi |
| Chemical formula | (CH₃)₃SiCl |
| Molar Mass | 108.64 g/mol |
| HS Code | 2931 90 00 |
| Structure formula Image |  |
| Applications | |
|---|---|
| Application | Chlorotrimethylsilane for synthesis. CAS 75-77-4, chemical formula (CH₃)₃SiCl. |
| Physicochemical Information | |
|---|---|
| Boiling point | 57 °C (1013 hPa) |
| Density | 0.86 g/cm3 (20 °C) |
| Explosion limit | 1.5 - 46 %(V) |
| Flash point | -20 °C |
| Ignition temperature | 420 °C |
| Melting Point | -58 °C |
| Vapor pressure | 250 hPa (20 °C) |
| Toxicological Information | |
|---|---|
| LD 50 oral | LD50 Rat 4868 mg/kg |
| LD 50 dermal | LD50 Rabbit 1530 mg/kg |
| Safety Information according to GHS | |
|---|---|
| Hazard Pictogram(s) | |
| Hazard Statement(s) | H225: Highly flammable liquid and vapour. H301 + H331: Toxic if swallowed or if inhaled. H312: Harmful in contact with skin. H314: Causes severe skin burns and eye damage. H335: May cause respiratory irritation. EUH014: Reacts violently with water. |
| Precautionary Statement(s) | P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P240: Ground/bond container and receiving equipment. P280: Wear protective gloves/ protective clothing/ eye protection/ face protection. P301 + P330 + P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P302 + P352: IF ON SKIN: Wash with plenty of soap and water. P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician. P403 + P233: Store in a well-ventilated place. Keep container tightly closed. |
| Signal Word | Danger |
| Storage class | 3 Flammable liquids |
| WGK | WGK 1 slightly water endangering |
| Disposal | 24 Liquid inorganic halides and hydrolysis-sensitive reagents can be carefully stirred dropwise into ice-cool 10% sodium hydroxide solution (Cat. No. 105587) (caution: caustic gases!); container D or E. |
| Safety Information | |
|---|---|
| Hazard Symbols | CorrosiveFlammable |
| Categories of danger | highly flammable, corrosive |
| R Phrase | R 11-14-20/21/22-35-37 Highly flammable.Reacts violently with water.Harmful by inhalation, in contact with skin and if swallowed.Causes severe burns.Irritating to respiratory system. |
| S Phrase | S 7/9-16-23-26-36/37/39-45 Keep container tightly closed and in a well-ventilated place.Keep away from sources of ignition - No smoking.Do not breathe vapour.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). |
| Storage and Shipping Information | |
|---|---|
| Storage | Store below +30°C. |
| Transport Information | |
|---|---|
| Declaration (railroad and road) ADR, RID | UN 1298 , 3 (8), II |
| Declaration (transport by air) IATA-DGR | UN 1298 , 3 (8), II |
| Declaration (transport by sea) IMDG-Code | UN 1298 , 3 (8), II, Segregation Group: 1 (Acids) |
| Specifications | |
|---|---|
| Assay (GC, area%) | ≥ 99.0 % (a/a) |
| Density (d 20 °C/ 4 °C) | 0.858 - 0.861 |
| Identity (IR) | passes test |