RALOX 240
2-tert-Butyl-4-methylphenol
CAS: 2409-55-4
Molecular Formula: C11H16O
RALOX 240 - Names and Identifiers
RALOX 240 - Physico-chemical Properties
| Molecular Formula | C11H16O |
| Molar Mass | 164.24 |
| Density | 0.92 g/cm3 (75℃) |
| Melting Point | 50-52°C(lit.) |
| Boling Point | 244°C(lit.) |
| Flash Point | 212°F |
| Water Solubility | insoluble |
| Solubility | methanol: 0.1g/mL, clear |
| Vapor Presure | 4.9Pa at 25℃ |
| Appearance | Crystalline Mass |
| Color | White to yellow-beige |
| BRN | 1817645 |
| pKa | 11?+-.0.18(Predicted) |
| PH | 4-5 (H2O, 20℃)(saturated solution) |
| Storage Condition | Keep in dark place,Inert atmosphere,Room temperature |
| Refractive Index | 1.4969 |
| Physical and Chemical Properties | Needle-like crystals. Melting point 55 °c, boiling point 237 °c, 118-119 °c (1.86kPa), relative density 0.9247(25/4 °c), refractive index 1.4969(75 °c), flash point 100 °c. Soluble in ether, acetone, benzene and other organic solvents, insoluble in water. |
| Use | Mainly used in the manufacture of antioxidant 2246 series, UV absorber UV-326 |
RALOX 240 - Risk and Safety
| Risk Codes | R34 - Causes burns R37 - Irritating to the respiratory system R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S29 - Do not empty into drains. S20 - When using, do not eat or drink. |
| UN IDs | UN 2430 8/PG 3 |
| WGK Germany | 2 |
| RTECS | GO7000000 |
| FLUKA BRAND F CODES | 8-9-23 |
| TSCA | Yes |
| HS Code | 29071900 |
| Hazard Class | 8 |
| Packing Group | III |
RALOX 240 - Upstream Downstream Industry
| Raw Materials | p-Cresol tert-Butanol tert-Butanol Isobutene Isobutene |
RALOX 240 - Reference Information
| LogP | 3.97 |
| dissociation constant | 11.72 at 20 ℃ |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| uses | organic synthesis intermediates are used to produce antioxidant 2246, antioxidant 2246-S and ultraviolet absorber UV-326. mainly used in the manufacture of antioxidant 2246 series, ultraviolet absorbent UV-326, etc. mainly used in the manufacture of antioxidant 2246 series and ultraviolet absorbent UV-326 organic synthesis. Intermediates in organic synthesis. |
| Production method | It is obtained by the action of p-cresol and isobutylene under the catalysis of 732# strongly acidic ion exchange resin. The above reaction is carried out at about 60°C. After the reaction is over, the catalyst is filtered out. The filtrate is added to the methanol caustic soda solution to precipitate the reaction by-product 2, 6-di-tert-butylp-cresol, filtered, and recrystallized by ethanol to obtain 264 antioxidants as by-products. The filtered filtrate is neutralized with sulfuric acid, distilled, washed with water, distilled under reduced pressure, crystallized, and filtered to obtain the finished product. |
| category | flammable liquid |
| toxicity classification | poisoning |
| acute toxicity | oral-rat LD50: 2500 mg/kg; Oral-mouse LD50: 700 mg/kg |
| stimulation data | skin-rabbit LD50: 2 mg/24 hours severe; Eye-rabbit 0.05 mg/24 hours severe |
| flammability hazard characteristics | when hot, open flame, oxidant is flammable; Thermal decomposition discharges spicy and stimulating smoke |
| storage and transportation characteristics | warehouse is dry and ventilated at low temperature and stored separately from oxidant |
| fire extinguishing agent | water mist, dry powder, foam |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 02:00:05
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Raw Materials for RALOX 240