Name
bp °C/mm (mp)
MW
D420
nD20
CHROMIUM
Atomic number
Crystal form
24
Atomic weight
Cr
Oxidation states
Body-centered cubic
0, 2, 3, 6
Electrical resistivity (20˚C)
51.9961
Electronegativity, Pauling
12.7 μΩ·cm
CAS number
1.6
Enthalpy of melting
7440-47-3
Specific heat (25˚C)
20.5 kJ/mol
Boiling point
0.107 cal/g K
Enthalpy of vaporization
2,672˚C
Thermal Conductivity (25˚)
339.5 kJ/mol
Melting point
Ionization potential
(spectral)
1,857˚C
Specific gravity (20˚C)
7.18-7.20
(aqueous)
93.9 W/(m K)
6.766 eV (l)
16.50 eV (ll)
0.74 V (+3)
COMPOUNDS
CXCR012
CHROMIUM(III) ACETATE HYDROXIDE
C14H23Cr3O16
CH3CO2
Cr
CH3CO2
603.31
Color: blue-green
HYDROLYTIC SENSITIVITY: 4: no reaction with water under neutral conditions
OH
EC 254-447-3
[39430-51-8]
HMIS: 3-1-0-X
100g
¥9,000
CHROMIUM ACETYLACETONATE - see AKC210 CHROMIUM(III) 2,4-PENTANEDIONATE
AKC195
CHROMIUM(III) BENZOYLACETONATE
C
O
HC
CH 3
H 2C
C
O
CXCR036
CHROMIUM(III) DICHLORIDE HYDROXIDE METHACRYLIC ACID - AQUA COMPLEX, 40% in isopropanol/acetone
Green solution
Flashpoint: 2°C (36°F)
Coupling agent for fiberglass-polyester composites
OH
H
O
H
Cl
Cl
Cr
O
Cr Cl
Cl
H
OH
O
H
O C C
CH2
CH3
approximate structure
C4H 9CH
-
+3
O Cr
C
3
1.23
HYDROLYTIC SENSITIVITY: 4: no reaction with water under neutral conditions
[111031-82-4]
TSCA
HMIS: 3-3-1-X
100g ¥14,500
CXCR042
C2H 5 O
CHROMIUM(III 2-ETHYLHEXANOATE,
65-70% in mineral spirits
C24H45CrO6
Cocatalyst for oxidation of cyclohexane to adipic acid
481.62
1.01
HYDROLYTIC SENSITIVITY: 4: no reaction with water under neutral conditions
[3444-17-5]
TSCA
EC 222-357-3
100g ¥11,000
HMIS: 2-1-0-X
AKC198
CF3
C
O
C
O
Cr
HC
3
CHROMIUM(III) HEXAFLUORO-2,4-PENTANEDIONATETETRAHYDROFURAN COMPLEX
C15H3CrF18O6·C 4 H 8 O
673.17/745.27
HYDROLYTIC SENSITIVITY: 5: forms reversible hydrate
[14592-80-4]
H3C
O
H3CO
O
Cr
HMIS: 3-1-0-X
1.0g ¥20,500
AKC205
H3CO
H3CO
CH3
O
CH3
CHROMIUM(III) METHOXYPROPOXIDE,
10-12% in methoxypropanol
C12H27CrO6
Color: green
319.30
Flashpoint: 35°C (95°F)
HMIS: 3-3-1-X
CH3
C
O
C
Cr
O 3
HC
0.93
HYDROLYTIC SENSITIVITY: 7: reacts slowly with moisture/water
AKC210
CH3
(237-8)
C30H27CrO6
Color: olive-drab
TOXICITY: ivn mus, LD50: 180 mg/kg
Soluble: benzene, methylene chloride
EC 240-484-2 HMIS: 2-1-1-X
2.5g ¥23,500
[16432-36-3]
TSCA
CH3
C C O
CF3
535.54
PHENYLBUTANEDIONATOCHROMIUM
Cr
3
10g ¥19,500
50g ¥64,500
（既）2-2142
CHROMIUM(III) 2,4-PENTANEDIONATE
349.36
340
(214)
C15H21CrO6
Metal content: 14.7-15.0% Cr
Solubility, ethyl acetate: 54 g/l
TOXICITY: oral rat, LD50: 3,360 mg/kg
Solubility, toluene: 100 g/l
ΔHform: -353.7 kcal/mole
Solubility, water: 1.1 g/l
Vapor pressure, 100˚: 0.001 mm
Soluble: acetic acid
Color: violet
Combustion catalyst for solid fuel rockets
Catalyst for diazo compounds
Catalyst in CH3CN for H2O2 oxidation of methacrylic esters to pyruvate esters.1
1.35
Yields film and fiber forming compositions upon substitution reactions with diphenylphosphinic acid.2
Forms oxygen rich chromium oxide films by MOCVD, which convert to epitaxial Cr2O3.3
Vapor phase transport facilitated with NH3.4
1. Enomoto, S. Chem. Abstr . 112, 1386139; Jpn. Patent 01 349,745, 1989.
2. Block, B. et al. J. Am. Chem. Soc. 1962, 84 , 1749.
3. Boorse, R. et al. Chem. Mater. 1994, 6 , 1509.
4. Zhang, J. et al. J. Appl. Phys. 1992, 71 , 2769.
HYDROLYTIC SENSITIVITY: 1: no significant reaction with aqueous systems
[21679-31-2]
TSCA
EC 244-526-0
HMIS: 3-1-1-X
100g ¥10,500 500g ¥28,500
アヅマックス株式会社
TEL 03-5543-1630
FAX 03-5543-0312
[email protected]
Name
MW
D420
bp °C/mm (mp)
AKC216
(CH 3)3C
C
O
Cr
3
HC
(CH3)3C
C
O
CHROMIUM(III) 2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATE
C33H57CrO6
Dark purple crystals
Soluble: hot ethanol
601.82
80 / 0.1 sub
(220-230)
HYDROLYTIC SENSITIVITY: 1: no significant reaction with aqueous systems
[14434-47-0]
HMIS: 3-1-1-X
1.0g ¥13,800
5g ¥41,500
AKC218
CF3
C
O
Cr
HC
CH3
C
O
3
CHROMIUM(III) 1,1,1-TRIFLUORO-2,4-PENTANEDIONATE
C15H12CrF9O6
Color: red-violet
Soluble: toluene, acetone, hot ethanol
511.24
(150-2)
HYDROLYTIC SENSITIVITY: 4: no reaction with water under neutral conditions
[14592-89-3]
HMIS: 3-1-0-X
1.0g ¥27,000
アヅマックス株式会社
TEL 03-5543-1630
FAX 03-5543-0312
[email protected]
nD20