Name
bp °C/mm (mp)
MW
D420
nD20
POTASSIUM
Atomic number
Crystal form
19
K
Oxidation states
Body-centered cubic
Atomic weight
0, 1
Electrical resistivity (20˚C)
39.0983
Electronegativity, Pauling
6.1 μΩ·cm
CAS number
0.9
Enthalpy of melting
7440-09-7
Specific heat (25˚C)
0.180 cal/g K
2.334 kJ/mol
Boiling point
Enthalpy of vaporization
760˚C
Thermal conductivity (25˚)
76.90 kJ/mol
Melting point
Ionization potential
(spectral)
63.25˚C
Specific gravity (20˚C)
0.862
102.5 W/(m K)
4.341 eV (l)
31.625 eV (ll)
2.924 V (+1)
(aqueous)
METAL ORGANICS
CXPO010
（既）2-692
O
+
H 3C C O K
98.15
(292)
TOXICITY: oral rat, LD50: >3,250 mg/kg
Solubility, methanol, 25°: 200 g/l
Solubility, water, 20˚: 725 g/l
ΔHform: -172.8 kcal/mole
1.57
COMMERCIAL
POTASSIUM ACETATE
C2H3KO2
Deliquescent
Bulk density: 700-750 g/l
Specific heat: 0.29 cal/g/˚
HYDROLYTIC SENSITIVITY: 0: forms stable aqueous solutions
[127-08-2]
TSCA
EC 204-822-2
CXPO015
H 2C
O
- +
CH C O K
HMIS: 2-1-0-X
250g ¥8,300
2kg ¥19,500
12.5kg inquire
（既）2-3448
POTASSIUM ACRYLATE
C3H3KO2
(Anhydrous)
Forms hydrophilic copolymers
110.15
(194)
HYDROLYTIC SENSITIVITY: 0: forms stable aqueous solutions
[10192-85-5]
EC 233-473-9
HMIS: 3-1-0-X
50g ¥15,500
CXPO016
H 2C
O
- +
CH C O K
POTASSIUM ACRYLATE, hemihydrate
C3H3KO2·0.5H 2 O
110.15 /119.16
(194)
HYDROLYTIC SENSITIVITY: 0: forms stable aqueous solutions
[10192-85-5]
EC 233-473-9
HMIS: 3-1-0-X
100g ¥15,000
CXPO017
H 2C
O
- +
CH C O K
（既）2-3448
POTASSIUM ACRYLATE, 18-20% in methanol
C3H3KO2
110.15
HYDROLYTIC SENSITIVITY: 0: forms stable aqueous solutions
[10192-85-5]
EC 233-473-9
CXPO020
O
-
O K
C
+
HMIS: 3-1-0-X
250g ¥13,300
（既）2-1272
POTASSIUM BENZOATE
C7H5KO2
Soluble: water, methanol
Preservative in cosmetics
Corrosion inhibitor for antifreeze
160.22
HYDROLYTIC SENSITIVITY: 0: forms stable aqueous solutions
[582-25-2]
TSCA
EC 582-25-2
100g ¥8,000
HMIS: 1-1-0-X
POTASSIUM BIS(TRIMETHYLSILYL)AMIDE - see SIP6890.0 POTASSIUM HEXAMETHYLDISILAZIDE
CH3
H 3C
C
OK
CH 3
（既）2-3100
AKP630
POTASSIUM t-BUTOXIDE
112.21
275 dec
(220)
C4H9KO
Hygroscopic
Solubility, t-butanol: 140 g/l
Bulk density: 500 g/l
Solubility, hexane: 1.8 g/l
Vapor pressure, 220˚: 1 mm
Solubility, tetrahydrofuran: 220 g/l
Stronger base than sodium ethoxide
Catalyst, reactant for condensations, isomerizations, dehydrohalogenation- reviewed.1
1. F&F: Vol. I, p 911-927; Vol. 2, p 336; Vol. 3, p 233.
HYDROLYTIC SENSITIVITY: 8: reacts rapidly with moisture, water, protic solvents
[865-47-4]
C
OK
CH 3
EC 212-740-3
HMIS: 3-3-2-X
（既）2-3100
POTASSIUM t-BUTOXIDE, 1M in tetrahydrofuran
C4H9KO
(12-14 wgt%)
50g ¥8,300
250g ¥19,500
112.21
Flashpoint: -19°C (-3°F)
0.902
HYDROLYTIC SENSITIVITY: 7: reacts slowly with moisture/water
[865-47-4]
TSCA
EC 212-740-3
HMIS: 3-4-1-X
25g ¥7,000
2kg ¥64,500
アヅマックス株式会社
TEL 03-5543-1630
03 5543 1630
FAX 03
03-5543-0312
5543 0312
sales@azmax
[email protected]
co jp
16kg inquire
COMMERCIAL
CH 3
H 3C
TSCA
AKP631
Name
bp °C/mm (mp)
MW
D420
nD20
AKP640
CH 3CH 2OK
POTASSIUM ETHOXIDE, 95%
C2H5KO
Bulk density: 0.65 g/ml
Soluble: ethanol, ether
F&F: Vol. 1, p 928.
84.16
(250 dec)
HYDROLYTIC SENSITIVITY: 8: reacts rapidly with moisture, water, protic solvents
[917-58-8]
TSCA
EC 213-029-0
HMIS: 3-2-2-X
25g ¥7,000
500g ¥20,000
CH 3CH 2OK
POTASSIUM ETHOXIDE, 20-22% in ethanol
C2H5KO
84.16
Flashpoint: 21°C (70°F)
TOXICITY: oral rat, LD50: 548 mg/kg
0.894
1.3900
HYDROLYTIC SENSITIVITY: 7: reacts slowly with moisture/water
[917-58-8]
TSCA
EC 213-029-0
O
+
H C O K
25g ¥7,000
HMIS: 3-2-2-X
CXPO045
2 kg ¥41,000
16kg inquire
COMMERCIAL
AKP641
（既）2-676
POTASSIUM FORMATE
CHKO2
Soluble: water, ethanol
Forms 77 wgt % solution in water (d=1.57)
84.12
(167.5)
TOXICITY: oral rat, LD50: 5,500 mg/kg
ΔHform: -162.5 kcal/mole
1.91
HYDROLYTIC SENSITIVITY: 0: forms stable aqueous solutions
TSCA
[590-29-4]
EC 209-677-9
HMIS: 3-1-0-X
100g ¥7,500
2kg ¥38,500
GEP6894
K 2GeF 6
POTASSIUM HEXAFLUOROGERMANATE
264.78
835
F6GeK2
Solubility, water: 5.4 g/l
Employed in scintillator type radiation detector.1
Employed in green phosphors.2
1. Yamada, T. et al. Chem. Abstr. 112, 242041n; JP. Patent 01 221,485, 1989.
2. Hitachi, Chem. Abstr. 95, 214047f; Jpn. Patent 56 103,276, 1981.
(730)
3.32
HYDROLYTIC SENSITIVITY: 4: no reaction with water under neutral conditions
HMIS: 2-0-0-X
[7783-73-5]
SIP6895.0
K2SiF6
劇物
POTASSIUM HEXAFLUOROSILICATE
F6K2Si
Solubility in water: 17 deg : 1.2 g/l
5g ¥24,500
（既）1-324
220.29
dec.
TOXICITY: oral gpg, LD50: 500 mg/kg
2.67
1.3991
HYDROLYTIC SENSITIVITY: 0: forms stable aqueous solutions
[16871-90-2]
TSCA
EC 240-896-2
HMIS: 2-0-0-X
シリコンカタログ参照
SIP6890.0
POTASSIUM HEXAMETHYLDISILAZIDE,
11% in toluene, 0.5M
(194-5)
0.877
POTASSIUM BIS(TRIMETHYLSILYL)AMIDE
COMMERCIAL
AL
CH3
H3C Si CH3
K
N
H3C Si CH3
CH3
199.49
Flashpoint: 7°C (45°F)
C6H18KNSi2
Sterically hindered base.1
Anionic initiator for preparation of polyalkylene oxides.2
1. Es
Es-Sayed,
Sayed, M. et al. Synlett. 1992, 12 , 962.
2. Yokoyama, M. Bioconjugate Chem. 1992, 3 , 275.
F&F: Vol. 4, p 407; Vol. 10, p 38, p 326; Vol. 13, p 257; Vol. 16, p 282.
HYDROLYTIC SENSITIVITY: 8: reacts rapidly with moisture, water, protic solvents
[40949-94-8]
HMIS: 3-4-1-X
シリコンカタログ参照
SIP6890.1
POTASSIUM HEXAMETHYLDISILAZIDE,
20% in THF
C6H18KNSi2
199.49
Flashpoint: -18°C (0°F)
0.898
COMMERCIAL
CH3
H3C Si CH3
K
N
H3C Si CH3
CH3
Sterically hindered base.1
Anionic initiator for preparation of polyalkylene oxides.2
1. Es-Sayed, M. et al. Synlett. 1992, 12 , 962.
2. Yokoyama, M. Bioconjugate Chem. 1992, 3 , 275.
F&F: Vol. 4, p 407; Vol. 10, p 38, p 326; Vol. 13, p 257; Vol. 16, p 282.
HYDROLYTIC SENSITIVITY: 8: reacts rapidly with moisture, water, protic solvents
HMIS: 3-4-1-X
[40949-94-8]
シリコンカタログ参照
CH 3
H
C
OK
CH 3
POTASSIUM ISOPROPOXIDE, 18 - 20% in isopropanol
C3H7KO
EC 229-909-2
CH 3
HMIS: 3-4-1-X
25g ¥8,500
2kg ¥89,500
50g ¥13,500
2kg inquire
（既）2-1027
POTASSIUM METHACRYLATE
C4H5KO2
(Anhydrous)
Copolymerization parameters - e,Q: 0.010, 0.540
124.18
HYDROLYTIC SENSITIVITY: 0: forms stable aqueous solutions
[6900-35-2]
TSCA
EC 230-007-6
HMIS: 3-2-0-X
アヅマックス株式会社
TEL 03-5543-1630
03 5543 1630
FAX 03
03-5543-0312
5543 0312
sales@azmax
[email protected]
co jp
COMMERCIAL
O
+
C C O K
0.86
HYDROLYTIC SENSITIVITY: 7: reacts slowly with moisture/water
[6831-82-9]
CXPO050
H 2C
98.19
Flashpoint: 16°C (61°F)
COMMERCIAL
AKP643
Name
bp °C/mm (mp)
MW
nD20
D420
CXPO051
POTASSIUM METHACRYLATE, hemihydrate
C4H5KO2·0.5H 2 O
Copolymerization parameters - e,Q: 0.010, 0.540
O
+
C C O K
H 2C
CH 3
124.18/133.19
HYDROLYTIC SENSITIVITY: 0: forms stable aqueous solutions
[6900-35-2]
TSCA
EC 230-007-6
100g ¥12,500
HMIS: 3-2-0-X
POTASSIUM METHOXIDE, 95%
CH3KO
CH3OK
70.12
HYDROLYTIC SENSITIVITY: 7: reacts slowly with moisture/water
[865-33-8]
TSCA
EC 212-736-1
HMIS: 4-3-2-X
25g ¥9,500
250g ¥24,500
2kg ¥88,500
POTASSIUM METHOXIDE, 3.4M in methanol (24-26%)
CH3KO
CH 3OK
70.12
0.95
1.37
HYDROLYTIC SENSITIVITY: 7: reacts slowly with moisture/water
[865-33-8]
TSCA
EC 212-736-1
AKP648
C
250g ¥10,500
2kg ¥42,000
17kg inquire
（既）2-3187
POTASSIUM 2-METHYL-2-BUTOXIDE,
14-16% in cyclohexane
CH3
CH3 CH2
HMIS: 3-4-1-X
126.24
Flashpoint: -18°C (0°F)
0.80
25
POTASSIUM t-AMYLOXIDE
OK
C5H11KO
CH3
Coreactant with hydroxylamine hydrochloride for conversion of ketones to oximes.1
1. Pearson, D. et al. J. Org. Chem. 1963, 28 , 1557.
HYDROLYTIC SENSITIVITY: 7: reacts slowly with moisture/water
[41233-93-6]
TSCA
EC 255-272-5
HMIS: 2-4-1-X
100g ¥13,500
2kg ¥84,500
SIP6898.0
POTASSIUM METHYLSILICONATE, 40% in water
CH5KO3Si
pH: 13
OH
K+-O
CH3
Si
OH
132.23
1.290
HYDROLYTIC SENSITIVITY: 0: forms stable aqueous solutions
[31795-24-1]
TSCA
HMIS: 3-0-0-X
シリコンカタログ参照
AKP650
CH3
C
CH3
POTASSIUM 2,4-PENTANEDIONATE, hydrate
C5H7KO2·1-3H 2 O
Soluble: water, methanol
O
K
HC
C
O
138.21
(250 dec)
HYDROLYTIC SENSITIVITY: 4: no reaction with water under neutral conditions
[57402-46-7]
50g ¥14,000
HMIS: 3-2-0-X
POTASSIUM t-PENTYLOXIDE - see AKP648 POTASSIUM 2-METHYL-2-BUTOXIDE
AKP652
POTASSIUM n-PROPOXIDE, 18-20% in n-propanol
C3H7KO
CH3CH2CH2OK
98.19
0.875
HYDROLYTIC SENSITIVITY: 7: reacts slowly with moisture/water
[16872-93-8]
HMIS: 4-3-1-X
SNP6900
POTASSIUM STANNATE, trihydrate
K2O3Sn·3H 2 O
Solubility, water: 1,105 g/l
K 2SnO 3
100g ¥21,500
（既）1-460
244.89/298.94
(140 dec)
3.197
HYDROLYTIC SENSITIVITY: 0: forms stable aqueous solutions
[12142-33-5]
TSCA
EC 235-255-9
HMIS: 2-0-0-X
100g ¥7,500
500g ¥15,500
CXPO074
O
+
H 2C CH C OCH 2CH 2CH 2SO 3 K
POTASSIUM SULFOPROPYLACRYLATE
232.30
(290 dec)
C6H9KO5S
TOXICITY: oral rat, LD50: >2,500 mg/kg
Solubility, water, 20°: >500 g/l
Functional monomer for aqueous dispersions, hydrogels, polyelectrolytes
HYDROLYTIC SENSITIVITY: 0: forms stable aqueous solutions
[31098-20-1]
TSCA
EC 250-465-0
HMIS: 2-0-0-X
25g ¥11,500
100g ¥27,300
CXPO076
H 2C
O
C C OCH 2CH2CH2SO 3
CH3
（既）2-1613
POTASSIUM SULFOPROPYLMETHACRYLATE
246.32
(>300 dec)
C7H11KO5S
TOXICITY: oral rat, LD50: >5,000 mg/kg
Solubility, water, 20°: 700 g/l
+
K
Utilized in emulsifier-free polymerization of styrene and butadiene.1
Forms pH-responsive polyelectrolyte.2
1. Andre, A. et al. Colloid. Polym. Sci . 1998, 276 , 1061.
2. Lian, D. et al. J. Appl. Polym. Sci . 1997, 63 , 175.
HYDROLYTIC SENSITIVITY: 0: forms stable aqueous solutions
[31098-21-2]
EC 250-466-6
HMIS: 3-1-0-X
25g ¥9,500
100g ¥20,800
アヅマックス株式会社
TEL 03-5543-1630
FAX 03-5543-0312
[email protected]
2kg ¥34,500
COMMERCIAL
AKP646
COMMERCIAL
AKP645
Name
D420
bp °C/mm (mp)
MW
AKP654
(CH 3)3C
C
O
C
O
K
HC
(CH 3)3C
POTASSIUM 2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATE
C11H19KO2
Hygroscopic
Soluble: ethanol, methoxypropanol
Ionic.1
1. Arnett, E. et al. J. Am. Chem. Soc. 1976, 98 , 7447.
222.37
(>150 dec)
Pale yellow - light brown powder
HYDROLYTIC SENSITIVITY: 4: no reaction with water under neutral conditions
[22441-14-1]
HMIS: 2-2-0-X
CXPO077
S
-
O K
CH3C
+
5g ¥19,500
（既）2-3702
POTASSIUM THIOACETATE
C2H3KOS
114.21
(173-6)
Reacts with halides, primary tosylates to form thioacetate esters which convert to mercaptans.
1. Chapman, J. et al. J. Chem. Soc . 1950, 579.
1
HYDROLYTIC SENSITIVITY: 4: no reaction with water under neutral conditions
[10387-40-3]
TSCA
EC 233-848-7
HMIS: 3-2-0-X
25g ¥12,500
SIP6899.0
POTASSIUM TRIETHYLSILANOLATE, 95%
170.37
C6H15KOSi
Reagent for cross-coupling reactions - greater solubility, reactivity than KOSiMe3
C2H5
K+-O
C2H5
Si
Used as a nucleophiles in the enantioselective formation of allyl alcohols from allyl carbonates.1
Employed in an inexpensive vinylation of aryl bromides.2
1. Lyothier, I. et al. Angew. Chem., Int. Ed. Engl. 2006, 45 , 6204.
2. Denmark, S. E. and Butler, C.R. J. Am. Chem. Soc. 2008, 130 , 3690.
C2H5
HYDROLYTIC SENSITIVITY: 7: reacts slowly with moisture/water
HMIS: 3-2-1-X
シリコンカタログ参照
CXPO080
O
CF3C
-
O K
POTASSIUM TRIFLUOROACETATE
C2F3KO2
+
152.12
(143-5)
1.49
HYDROLYTIC SENSITIVITY: 0: forms stable aqueous solutions
[2923-16-2]
EC 220-877-5
HMIS: 3-1-0-X
25g ¥11,800
CXPO083
POTASSIUM TRIFLUOROMETHANESULFONATE
CF3KO3S
Hygroscopic
O
CF3S
-
O K
+
188.17
HYDROLYTIC SENSITIVITY: 6: forms irreversible hydrate
O
[2926-27-4]
CH3
K + - O Si CH3
CH3
10g ¥10,500
HMIS: 3-0-0-X
SIP6901.0
（既）2-2086
POTASSIUM TRIMETHYLSILANOLATE, 95%
128.29
C3H9KOSi
Initiates silicone (cyclic siloxane) polymerizations.
Cleaves esters under non-aqueous conditions.1
Catalyzes fluoride-free, silicon-based cross-coupling reactions.2
C
Converts
t difl
difluorobenzenes
b
to
t fluorophenols.
fl
h
l 3
1. Laganis, E. et al. Tetrahedron Lett. 1984, 25 , 5831.
2. Denmark, S. E. and Regens, C. S. Accts. Chem. Res. 2008, 41 , 1486.
3. Li, J. et al. Synlett 2009, 633.
F&F: Vol. 12, p 414.
(134-8 dec)
HYDROLYTIC SENSITIVITY: 7: reacts slowly with moisture/water
[10519-96-7]
TSCA
EC 234-062-7
HMIS: 3-2-1-X
シリコンカタログ参照
SIP6901.2
POTASSIUM TRIMETHYLSILANOLATE,
2M in tetrahydrofuran
26 - 29 wt%
C3H9KOSi
128.29
0.91
HYDROLYTIC SENSITIVITY: 7: reacts slowly with moisture/water
[10519-96-7]
TSCA
EC 234-062-7
HMIS: 3-4-1-X
シリコンカタログ参照
SIP6902.0
CH3
K + - O Si CH
CH3
CH2
POTASSIUM VINYLDIMETHYLSILANOLATE
C4H9KOSi
Soluble: THF
Initiates silicone (cyclic siloxane) polymerizations
140.30
HYDROLYTIC SENSITIVITY: 8: reacts rapidly with moisture, water, protic solvents
HMIS: 3-2-1-X
シリコンカタログ参照
アヅマックス株式会社
TEL 03-5543-1630
FAX 03-5543-0312
[email protected]
nD20
Name
MW
bp °C/mm (mp)
CXPO091
CH2CH
O
-
SO 3 K
+
POTASSIUM poly(VINYLSULFATE)
162.21 (Unit MW)
(C2H3KO4S)n
Soluble: water, pyridine
Mn: 300,000-400,000
Solubility, water: 300-340 g/l
Polyelectrolyte
Thickening agent for agar
Employed in formation of bilayer amphiphile films.1
Stabilizes colloidal metal dispersions.2
1. Shimomura, M. et al. Thin Solid Films 1985, 132 , 243.
2. Hirai, H. et al. Bull. Chem. Soc. Jpn . 1986, 59 , 367.
[26182-60-5]
TSCA
HMIS: 1-1-0-X
10g ¥49,500
PRASEODYMIUM - see RARE EARTHS
アヅマックス株式会社
TEL 03-5543-1630
FAX 03-5543-0312
sales@azmax co jp
[email protected]
D420
nD20