2052-49-5
Tetrabutylammonium hydroxide
CAS: 2052-49-5
Molecular Formula: C16H37NO
2052-49-5 - Names and Identifiers
| Name | Tetrabutylammonium hydroxide |
| Synonyms | IPC-TBA-OH aqueoussolution Tetrabutylammonium hydroxide TETRABUTYLAMM.HYDR.IN METHANOL Tetra-n-butylammonium hydroxide tetrabutylammonium hydroxide hydrate n,n,n-tributyl-1-butanaminiuhydroxide n,n,n-tributyl-1-butanaminiumhydroxide 1-ButanaminiumN,N,N-tributyl-,hydroxide 1-Butanaminium,N,N,N-tributyl-,hydroxide Tetranbutylammoniumhydroxidesolninmethanol |
| CAS | 2052-49-5 |
| EINECS | 218-147-6 |
| InChI | InChI=1/C16H36N.2H2O/c1-5-9-13-17(14-10-6-2,15-11-7-3)16-12-8-4;;/h5-16H2,1-4H3;2*1H2/q+1;;/p-1 |
| InChIKey | VDZOOKBUILJEDG-UHFFFAOYSA-M |
2052-49-5 - Physico-chemical Properties
| Molecular Formula | C16H37NO |
| Molar Mass | 259.47 |
| Density | 0.995 |
| Melting Point | 27-30°C(lit.) |
| Boling Point | 100 °C |
| Flash Point | 7°C |
| Water Solubility | Soluble in water, methanol. |
| Solubility | Miscible with organic solvents. |
| Vapor Presure | 2.3 kPa (@ 20°C) |
| Vapor Density | 1 (vs air) |
| Appearance | Solution |
| Specific Gravity | 0.8586 |
| Color | APHA: ≤30 |
| Odor | Odorless |
| Exposure Limit | ACGIH: TWA 200 ppm; STEL 250 ppm (Skin)OSHA: TWA 200 ppm(260 mg/m3)NIOSH: IDLH 6000 ppm; TWA 200 ppm(260 mg/m3); STEL 250 ppm(325 mg/m3) |
| BRN | 3571228 |
| Storage Condition | Store below +30°C. |
| Sensitive | Air Sensitive/Hygroscopic |
| Refractive Index | 1.4 |
2052-49-5 - Risk and Safety
| Risk Codes | R34 - Causes burns R36/38 - Irritating to eyes and skin. R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R11 - Highly Flammable R67 - Vapors may cause drowsiness and dizziness R39/23/24/25 - R36 - Irritating to the eyes R65 - Harmful: May cause lung damage if swallowed R63 - Possible risk of harm to the unborn child R38 - Irritating to the skin R48/20 - R35 - Causes severe burns R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R10 - Flammable R68/20/21/22 - |
| Safety Description | S7 - Keep container tightly closed. S16 - Keep away from sources of ignition. 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.) S36/37 - Wear suitable protective clothing and gloves. S62 - If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label. S27 - Take off immediately all contaminated clothing. |
| UN IDs | UN 3267 8/PG 2 |
| WGK Germany | 1 |
| RTECS | BS5425000 |
| FLUKA BRAND F CODES | 9-34 |
| TSCA | Yes |
| HS Code | 29239000 |
| Hazard Note | Highly Flammable/Toxic/Corrosive/Air Sensitive/Hygroscopic |
| Hazard Class | 3 |
| Packing Group | II |
2052-49-5 - Reference Information
| pH indicator color change ph range | 14 |
| LogP | 1.517 at 25℃ |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Use | is a cleaning reagent for the electronics industry It is usually used as an ion-pair mobile phase in chromatography It is only used to determine anions by MPIC of ion chromatography. If it is used in HPLC, the pH value must be adjusted because it is alkaline. |
| production method | 40g of tetra-n-butyl iodide is dissolved into 90 ml of absolute methanol, 20g of pure silver oxide in fine powder form is added, sealed and shaken violently for 1 hour. Take a few milliliters of the mixture and centrifuge to check whether it contains I-. If it is a positive test, add 2 grams of silver oxide and oscillate for another 30 minutes. If it is a negative test, the mixture is filtered through a fine sand core funnel, rinse the reaction bottle and funnel with 3 parts of 50ml dry bath benzene, and the lotion is incorporated into the filtrate. Blow with pure nitrogen for 5 minutes during storage to prevent absorption of water vapor and carbon dioxide. In the above reaction, ethanol can be used to replace methanol, but tetra-n-butyl iodide is relatively stable in methanol. |
| category | corroded articles |
| toxicity classification | poisoning |
| acute toxicity | subcutaneous-mouse LDL0: 19 mg/kg |
| flammability hazard characteristics | flammability |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; separate from acid |
| fire extinguishing agent | water, sand, carbon dioxide |
Last Update：2024-04-10 22:29:15
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View History
2052-49-5
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19877-89-5
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