Compound, corrosion inhibitor, and lubricant composition
A compound represented by the following general formula (B1). Further disclosed is a corrosion inhibitor (B) containing one or more selected from the compound represented by the following formula (B1). Further disclosed is a lubricant composition containing an ionic liquid (A) and the corrosion inhibitor (B). The compound and the corrosion inhibitor are excellent in stability in any of a high vacuum, a low-temperature environment, a high-temperature environment, and an ordinary temperature-ordinary pressure environment, and the lubricant composition containing the corrosion inhibitor is excellent in metal corrosion resistance, solubility, and low evaporability. In the general formula (B1), M is an alkali metal and RB11 is an alkylene group having 1 to 19 carbon atoms.
1 . A compound of formula (B1):
wherein
M is an alkali metal, and
R B11 is an alkylene group comprising 3 to 19 carbon atoms.
2 . A corrosion inhibitor (B), comprising:
the compound of claim 1 .
3 . A lubricant composition, comprising:
an ionic liquid (A); and
the corrosion inhibitor (B) of claim 2 .
4 . The lubricant composition of claim 3 , wherein the ionic liquid (A) comprises a cation of formula (A1):
wherein
n is 1 or 2,
X is a methylene group or oxygen,
R A11 and R A12 are each independently an alkyl group having 1 to 12 carbon atoms, optionally comprising an ether group, an ester group, a nitrile group, and/or a silyl group.
5 . The lubricant composition of claim 3 , wherein the ionic liquid (A) comprises a compound of formula (A2):
wherein
n is 1 or 2,
X is a methylene group or oxygen, and
R A21 is an alkyl group comprising 2 to 12 carbon atoms.
6 . The lubricant composition of claim 3 , comprising the compound of formula (B1) in a range of from 0.1 to 10% by mass, based on a total lubricant composition mass.
7 . The lubricant composition of claim 3 , wherein a (B1/A) mass ratio of the content of the compound of formula (B1) to the content of the ionic liquid (A), is in a range of from 0.0005 to 0.15.
8 . A lubricant composition, comprising:
an ionic liquid (A) comprising a cation of formula (A1):
n being 1 or 2, X being a methylene group or oxygen, and R A11 and R A12 each independently being an alkyl group comprising 1 to 12 carbon atoms, optionally comprising an ether group, an ester group, a nitrile group, and/or a silyl group; and
a corrosion inhibitor of formula (B1):
M being an alkali metal, and R B11 being an alkylene group comprising 1 to 19 carbon atoms.
9 . A lubricant composition, comprising:
a corrosion inhibitor of formula (B1):
M being an alkali metal, and R B11 being an alkylene group comprising 1 to 19 carbon atoms; and
an ionic liquid (A) comprising a compound of formula (A2):
n being 1 or 2, X being a methylene group or oxygen, R A21 being an alkyl group comprising 2 to 12 carbon atoms; and/or a compound of formula (A3):
n being 1 or 2, X being a methylene group or oxygen, R A31 being an alkylene group comprising 1 to 5 carbon atoms, R A32 being a hydrogen atom or an alkyl group comprising 1 to 3 carbon atoms.
10 . The lubricant composition of claim 9 , wherein the ionic liquid (A) comprises the compound of formula (A2).
11 . The lubricant composition of claim 9 , wherein the ionic liquid (A) comprises the compound of formula (A3).
12 . The lubricant composition of claim 9 , wherein the ionic liquid (A) comprises the compound of formula (A2) and the compound of formula (A3).
13 . The compound of claim 1 , wherein the alkylene group of R B11 in formula (B1) comprises 3 to 17 carbon atoms.
14 . The compound of claim 1 , wherein the alkylene group of R B11 in formula (B1) comprises 5 to 19 carbon atoms.
15 . The compound of claim 1 , wherein the alkylene group of R B11 in formula (B1) comprises 7 to 19 carbon atoms.
16 . The lubricant composition of claim 3 , wherein the ionic liquid (A) comprises a compound of formula (A3):
wherein
n is 1 or 2,
X is a methylene group or oxygen,
R A31 is an alkylene group comprising 1 to 5 carbon atoms, and
R A32 is a hydrogen atom or an alkyl group comprising 1 to 3 carbon atoms.
17 . The lubricant composition of claim 3 , wherein the ionic liquid (A) comprises:
a compound of formula (A2):
n being 1 or 2, X being a methylene group or oxygen, R A21 being an alkyl group comprising 2 to 12 carbon atoms; and
a compound of formula (A3):
n being 1 or 2, X being a methylene group or oxygen, R A31 being an alkylene group comprising 1 to 5 carbon atoms, R A32 being a hydrogen atom or an alkyl group comprising 1 to 3 carbon atoms.
18 . The lubricant composition of claim 4 , wherein, in formula (A1), n is 1.
19 . The lubricant composition of claim 4 , wherein, in formula (A1), n is 2.
20 . The lubricant composition of claim 4 , wherein, in formula (A1), X is the methylene group.