CAS No.33725-74-5,Tetrabutylammonium borohydride Suppliers,MSDS download

Detail of "33725-74-5"

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CAS Number:

33725-74-5

Name:

Tetrabutylammonium borohydride

Molecular Structure:

Formula:

C₁₆H₃₆N^.BH₄

Molecular Weight:

257.31

Synonyms:

Tetrabutylammonium boranate;Tetrabutylammonium tetrahydroborate;1-Butanaminium, N,N,N-tributyl-, tetrahydroborate(1-);boron(-1) tetrahydride anion; tetrabutylazanium;Tetrabutyl Ammonium Borohydride 98+ %;Tetra-n-butylammonium borohydride;Tetrabutylannonium borohydride;

EINECS:

251-658-2

Melting Point:

124-128 °C

Solubility:

soluble in water

Appearance:

white crystalline powder

Hazard Symbols:

Risk Codes:

15-34-36/37/38

Safety:

26-36/37/39-43-7/8-37/39-25 Details

Transport Information:

UN 3131

Reference

Electron transfer and ion pairing: Electron transfer and ion pairing. 27. Preparation of semiquinone ion pairs by reduction of quinones using tetraalkylammonium borohydride in aprotic salt solutions: 1,10-phenanthroline-5,6-dione. Bock, H.; Haenel, P. (Chem. Inst., Univ. Frankfurt, Frankfurt/Main D-W-6000/50, Germany). Z. Naturforsch., B: Chem. Sci., 47(2), 288-300 (German) 1992. CODEN: ZNBSEN. ISSN: 0932-0776. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) Ion pairs of 1,10-phenanthroline-5,6-dione anion radical with Mg2+, Ca2+, Sr2+, Zn2+, Cd2+, Pb2+, and La3+ cations are prepd. in DMF contg. metal salts by redn.Several substances with their cas registry numbers 140168-73-6 and 33725-74-5 may be metioned in this study. with Bu4N+ BH4-. The naked anion radical with [K(2.2.2-cryptand)]+ as counterion is examd. for comparison. Addn. of NaBPh4 to the redn. soln. yields only a solvent-sepd. ion pair, whereas in the presence of multiply charged cations the contact ion pair cation radicals are formed. ESR and ENDOR data are discussed,. Ion-pair stability, which is modified by the dielec. properties of the solvent, can be rationalized by Coulombic attraction between the anion radical and the counter cation. .

The sign of the nuclear Overhauser effect as a function of temperature in contact ion pairs: The sign of the nuclear Overhauser effect as a function of temperature in contact ion pairs. Stone, Patricia M.; Pochapsky, Thomas C.; Callegari, Ernesto (Dep. Chem., Brandeis Univ., Waltham, MA 02254-9110, USA). J. Chem. Soc., Chem. Commun., (2), 178-9 (English) 1992. CODEN: JCCCAT. ISSN: 0022-4936. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) The signs and magnitudes of nuclear Overhauser effects obsd. in closed-shell ion pairs, e.g., of Bu4NBH4, in C2HCl3 show an unusual temp. dependence; f.p. depression measurements support the proposal that the obsd.Except for chemicals metioned above, 33725-74-5 and 139558-65-9 are also used. dependence is due at least in part to the formation of ion aggregates. .

Detail of "33725-74-5"

Tetrabutylammonium borohydride

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CAS No.33725-74-5 Tetrabutylammonium borohydride

CAS No.33725-74-5 Tetrabutylammonium borohydride

CAS No.33725-74-5 Tetrabutylammonium borohydride

CAS No.33725-74-5 Tetrabutylammonium borohydride

CAS No.33725-74-5 Tetrabutylammonium borohydride

CAS No.33725-74-5 Tetrabutylammonium borohydride

CAS No.33725-74-5 Tetrabutylammonium borohydride

CAS No.33725-74-5 Tetrabutylammonium borohydride

CAS No.33725-74-5 Tetrabutylammonium borohydride

CAS No.33725-74-5 Tetrabutylammonium borohydride

CAS No.33725-74-5 Tetrabutylammonium borohydride

CAS No.33725-74-5 Tetrabutylammonium borohydride

CAS No.33725-74-5 Tetrabutylammonium borohydride

CAS No.33725-74-5 Tetrabutylammonium borohydride

Reference