MERCK 100700.0100 Thioglycolic Acid GR for Synthesis
| Description |
|---|
| Catalogue Number | 100700 |
| Synonyms | Mercaptoacetic acid, 2-Mercaptoethanoic acid |
| Description | Thioglycolic acid |
| Product Information |
|---|
| CAS number | 68-11-1 |
| EC index number | 607-090-00-6 |
| EC number | 200-677-4 |
| Grade | Reag. Ph Eur |
| Hill Formula | C₂H₄O₂S |
| Chemical formula | HSCH₂COOH |
| Molar Mass | 92.12 g/mol |
| HS Code | 2930 90 11 |
| Structure formula Image |
| Quality Level | MQ100 |
| Physicochemical Information |
|---|
| Boiling point | 220 °C (1013 hPa) (decomposition) |
| Density | 1.325 g/cm3 |
| Flash point | 130 °C |
| Melting Point | -16 °C |
| pH value | 1.5 (10 g/l, H₂O, 20 °C) |
| Vapor pressure | 0.5 hPa (25 °C) |
| Toxicological Information |
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| LD 50 oral | LD50 Rat 73 mg/kg |
| Safety Information according to GHS |
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| Hazard Pictogram(s) | |
| Hazard Statement(s) | H301 + H311 + H331: Toxic if swallowed, in contact with skin or if inhaled.H314: Causes severe skin burns and eye damage.H317: May cause an allergic skin reaction.H412: Harmful to aquatic life with long lasting effects. |
| Precautionary Statement(s) | P261: Avoid breathing mist or vapours.P273: Avoid release to the environment.P280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection.P303 + P361 + P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water.P304 + P340 + P310: IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor.P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
| Signal Word | Danger |
| RTECS | AI5950000 |
| Storage class | 6.1C Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects |
| WGK | WGK 3 highly hazardous to water |
| Disposal | 6Sulfides and sulfites as well as other reducing substances, inorganic cyanides and isonitriles: Stir into sodium hypochlorite solution (Cat. No. 105614) and, if necessary, leave to react for several days. Caution: some substances may show a violent reaction! Draw off any toxic or flammable gases that may be formed. Excess oxidant should be neutralized with sodium thiosulfate (Cat. No. 106513). Container D or E. |
| Safety Information |
|---|
| Categories of danger | toxic, corrosive |
| Storage and Shipping Information |
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| Storage | Store at +2°C to +8°C. |
| Transport Information |
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| Declaration (railroad and road) ADR, RID | UN 1940, 8, II |
| Declaration (transport by air) IATA-DGR | UN 1940, 8, II |
| Declaration (transport by sea) IMDG-Code | UN 1940, 8, II, Segregation Group: 1 (Acids) |
| Specifications |
|---|
| Description | clear, colourless liquid |
| Assay (iodometric) | ≥ 98.5 % |
| Solubility (USP) | conforms |
| Solubility in water | conforms |
| Solubility in ethanol | conforms |
| Sensitivity (USP) | conforms |
| Fe (Iron) | ≤ 0.00005 % |
| Organic bound chlorine | ≤ 0.01 % |
| Sulfated ash | ≤ 0.05 % |
| Identity (IR) | conforms |
| The statement of the assay applies to the test date.Agradual substance-specific content reduction,especially at higher temperatures,must be expected. The average content reduction at the required storage temperature of +2°c to +8°C is about 1% per month. |
| Global Trade Item Number |
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| Catalogue Number | GTIN |
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| 1007000100 | 04022536009339 |
| 1007001000 | 04022536009346 |
