| 词条 | TAPS (buffer) |
| 释义 |
| Name = TAPS | Verifiedfields = changed | Watchedfields = changed | verifiedrevid = 449646540 | ImageFile = TAPS.svg | ImageSize = | ImageAlt = | IUPACName = 3-{[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino}propane-1-sulfonic acid | OtherNames = N-Tris(hydroxymethyl)methyl-3-aminopropanesulfonic acid |Section1={{Chembox Identifiers | CASNo_Ref = {{cascite|correct|??}} | CASNo = 29915-38-6 | PubChem = 121591 | ChemSpiderID_Ref = {{chemspidercite|changed|chemspider}} | ChemSpiderID = 108495 | SMILES = C(CNC(CO)(CO)CO)CS(=O)(=O)O | InChI = 1/C7H17NO6S/c9-4-7(5-10,6-11)8-2-1-3-15(12,13)14/h8-11H,1-6H2,(H,12,13,14) | InChIKey = YNLCVAQJIKOXER-UHFFFAOYAP | StdInChI_Ref = {{stdinchicite|changed|chemspider}} | StdInChI = 1S/C7H17NO6S/c9-4-7(5-10,6-11)8-2-1-3-15(12,13)14/h8-11H,1-6H2,(H,12,13,14) | StdInChIKey_Ref = {{stdinchicite|changed|chemspider}} | StdInChIKey = YNLCVAQJIKOXER-UHFFFAOYSA-N}} |Section2={{Chembox Properties | C=7 | H=17 | N=1 | O=6 | S=1 | Appearance = | Density = | MeltingPt = | BoilingPt = | Solubility = }} |Section3={{Chembox Hazards | MainHazards = | FlashPt = | AutoignitionPt = }} TAPS ([tris(hydroxymethyl)methylamino]propanesulfonic acid) is a chemical compound commonly used to make buffer solutions. It can bind divalent cations, including Co(II) and Ni(II).[1] TAPS is effective to make buffer solutions in the pH range 7.7–9.1, since it has a pKa value of 8.44 (ionic strength I = 0, 25 °C).[2] The pH (and pKa at I ≠ 0) of the buffer solution changes with concentration and temperature, and this effect may be predicted e.g. using online calculators.[3] References1. ^{{cite journal |last1=Machado |first1=Carina M. M. |last2=Gameiro |first2=Paula |last3=Soares |first3=Helena M. V. M. |journal=J. Solution Chem. |year=2008 |volume=37 |issue=5 |pages=603–617 | title= Complexation of M–(buffer)x–(OH)y systems involving divalent ions (cobalt or nickel) and zwitterionic biological buffers (AMPSO, DIPSO, TAPS and TAPSO) in aqueous solution |doi= 10.1007/s10953-008-9265-3}} 2. ^{{cite journal |title=Thermodynamic quantities for the ionization reactions of buffers |last1=Goldberg |first=Robert N. |first2=Nand |last2=Kishore |first3=Rebecca M. |last3=Lennen |journal=J. Phys. Chem. Ref. Data |volume=31 |issue=2 |pages=231–370 |year=2002 |url=http://structbio.vanderbilt.edu/wetlab/buffer.ioniz.pdf |doi=10.1063/1.1416902 }} 3. ^{{Cite web|title=Biological buffers |url=http://www.reachdevices.com/Protein/BiologicalBuffers.html |publisher=REACH Devices}} 3 : Buffers|Sulfonic acids|Triols |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。