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822-06-0

822-06-0

Identification

  • Product Name:1,6-Diisocyanatohexane

  • CAS Number: 822-06-0

  • EINECS:212-485-8

  • Molecular Weight:168.195

  • Molecular Formula: C8H12N2O2

  • HS Code:H2)6(NCO)2 MOL WT. 168.19

  • Mol File:822-06-0.mol

Synonyms:Isocyanicacid, hexamethylene ester (6CI,8CI);1,6-Hexamethyldiisocyanate;1,6-Hexamethylene diisocyanate;1,6-Hexanediisocyanate;1,6-Hexylene diisocyanate;GMDI;HDI;HMDI;Hexamethylene diisocyanate;Hexamethylene diisocyanate-acrylonitrile copolymer;Hexane 1,6-diisocyanate;NSC 11687;1,6-Diisocyanatohexane;

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Safety information and MSDS

  • Pictogram(s):ToxicT

  • Hazard Codes:T,T+,F

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  • Product Description:1,6-diisocyanatohexane
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  • Product Description:Hexamethylene Diisocyanate >98.0%(GC)
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  • Product Description:Hexamethylene diisocyanate for synthesis. CAS 822-06-0, EC Number 212-485-8, chemical formula OCN(CH ) NCO., for synthesis
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Relevant articles and documentsAll total 80 Articles be found

METHOD FOR PRODUCING CARBAMATE AND METHOD FOR PRODUCING ISOCYANATE

-

, (2021/06/22)

The present invention provides a method for producing a carbamate that includes a step (1) and a step (2) described below: (1) a step of producing a compound (A) having a urea linkage, using an organic primary amine having at least one primary amino group per molecule and at least one compound selected from among carbon dioxide and carbonic acid derivatives, at a temperature lower than the thermal dissociation temperature of the urea linkage; and(2) a step of reacting the compound (A) with a carbonate ester to produce a carbamate.

Method for preparing isocyanate with low hydrolytic chlorine content by gas phase method

-

Paragraph 0033-0036; 0041-0046, (2021/05/22)

The invention relates to a method for preparing isocyanate with low hydrolytic chlorine content by a gas phase method, which comprises the following steps of: carrying out phosgenation reaction on corresponding amine and stoichiometric excess phosgene in a reaction zone in the presence or absence of an inert medium; wherein the reaction conditions are selected such that at least the reaction components amine, isocyanate and phosgene are gaseous under these conditions, and feeding of at least one gas stream comprising amine and at least one gas stream comprising phosgene into the reaction zone, and introducing of a carbon dioxide stream in a quenching zone at the rear end of the reaction zone are carried out, and the molar content of the carbon dioxide stream is less than 60% of the molar weight of the phosgene stream, so that the isocyanate with low hydrolytic chlorine content can be obtained more easily, the product yield is improved, and the investment cost of the device is reduced.

Method for manufacturing pentamethylene diisocyanate

-

Paragraph 0064-0065; 0066-0067, (2021/05/11)

The present invention provides a method for manufacturing pentamethylene diisocyanate. The method for manufacturing pentamethylene diisocyanate of the present invention manufactures intermediates by using dialkyl carbonate. By thermally decomposing the intermediates under a specific polymerization inhibitor, the method can manufacture the pentamethylene diisocyanate having excellent purity in a high yield.

METHOD OF PREPARING DIISOCYANATE COMPOSITION

-

Paragraph 0248-0249; 0283-0285, (2021/06/11)

In the embodiments, an aqueous hydrochloric acid solution instead of hydrogen chloride gas and solid triphosgene instead of phosgene gas may be used in the process of preparing a diisocyanate from a diamine through a diamine hydrochloride. In addition, the embodiments provide processes for preparing a diisocyanate composition and an optical lens, which are excellent in yield and quality with mitigated environmental problems by controlling the size of the diamine hydrochloride composition, the b* value according to the CIE color coordinate of the diamine hydrochloride composition, or the content of water in the diamine hydrochloride composition within a specific range.

METHOD OF PREPARING DIISOCYANATE COMPOSITION AND OPTICAL LENS

-

Paragraph 0235-0238; 0243; 0290, (2021/06/11)

In the embodiments, an aqueous hydrochloric acid solution and an organic solvent instead of hydrogen chloride gas and solid triphosgene instead of phosgene gas may be used in the process of preparing a diisocyanate from a diamine through a diamine hydrochloride. In addition, the embodiments provide processes for preparing a diisocyanate composition and an optical lens, which are excellent in yield and quality with mitigated environmental problems by controlling the total content of metals, cations, or anions in a diamine hydrochloride composition.

Process route upstream and downstream products

Process route

[4-(2-phenylpropan-2-yl)phenyl]-N-[6-[[4-(2-phenylpropan-2-yl)phenoxy]carbonylamino]hexyl]carbamate

[4-(2-phenylpropan-2-yl)phenyl]-N-[6-[[4-(2-phenylpropan-2-yl)phenoxy]carbonylamino]hexyl]carbamate

p-cumylphenol
599-64-4

p-cumylphenol

Hexamethylene diisocyanate
822-06-0,28182-81-2,28574-90-5,88357-62-4

Hexamethylene diisocyanate

Conditions
Conditions Yield
In neat (no solvent); Heating;
Hexyl isocyanate
2525-62-4,26746-07-6

Hexyl isocyanate

Hexamethylene diisocyanate
822-06-0,28182-81-2,28574-90-5,88357-62-4

Hexamethylene diisocyanate

Conditions
Conditions Yield
With dibutyltin(II) dilaurate; at 140 - 240 ℃; for 1.66667h; under 20 Torr;
78.3%
12.3%
N,N′-hexanediyl bis-carbamic acid diphenyl ester
4223-31-8

N,N′-hexanediyl bis-carbamic acid diphenyl ester

Hexamethylene diisocyanate
822-06-0,28182-81-2,28574-90-5,88357-62-4

Hexamethylene diisocyanate

Conditions
Conditions Yield
at 150 ℃; Pyrolysis;
99.8%
at 220 ℃; under 97.5098 Torr; Product distribution / selectivity; Industry scale;
97%
at 100 - 150 ℃; for 240h; under 11.2511 - 60.006 Torr; Product distribution / selectivity;
97%
With DURANATE TPA-100; In dodecane; at 250 ℃; for 200h; under 6000.6 Torr; Reagent/catalyst; Solvent; Inert atmosphere;
90%
In 1,2-dichloro-benzene; at 160 - 250 ℃; under 6000.6 Torr; Inert atmosphere; Flow reactor;
86%
In 2,6,10,15,19,23-hexamethyltetracosane; at 120 - 250 ℃; under 760.051 Torr; Inert atmosphere; Large scale;
74%
With Tri-n-octylamine; at 120 - 270 ℃; under 760.051 Torr; Inert atmosphere; Large scale;
72%
With triphenylphosphine; at 120 - 270 ℃; for 200h; Time; Inert atmosphere; Large scale;
70%
at 120 - 220 ℃; under 0.975098 - 150.015 Torr; Product distribution / selectivity; Gas phase;
at 220 ℃; Product distribution / selectivity;
at 150 - 240 ℃; under 7.50075 Torr; Industrial scale;
1,6-bis(methoxycarbonylamino)hexane
6030-54-2

1,6-bis(methoxycarbonylamino)hexane

Hexamethylene diisocyanate
822-06-0,28182-81-2,28574-90-5,88357-62-4

Hexamethylene diisocyanate

Conditions
Conditions Yield
With dibutyltin dilaurate; 3-(3-methyl-1H-imidazol-3-ium-1-yl)propane-1-sulfonate; at 240 ℃; for 2h; under 20 Torr; Temperature; Reagent/catalyst; Pressure;
97.4%
With dibutyltin dilaurate; In butan-1-ol; at 120 - 240 ℃; under 20 Torr; Solvent; Temperature; Flow reactor;
92.2%
With antimony(III) trioxide; vanadium(V) oxide; titanium(IV) oxide; at 250 ℃; under 20 Torr; Temperature;
83.9%
With 2-tert-Butylphenol; dibutyltin dilaurate; at 220 ℃; for 13h; under 9.75098 Torr; Product distribution / selectivity;
With Mesitol; dibutyltin dilaurate; at 200 ℃; under 9.75098 Torr; Product distribution / selectivity;
With zinc diacetate; at 160 ℃; for 1h; Reagent/catalyst; Time; Solvent; Temperature; Catalytic behavior; Mechanism;
100 %Chromat.
With CuO/ZnO catalyst; at 20 - 230 ℃; for 2.5h; Catalytic behavior;
With dibutyltin(II) dilaurate; at 200 - 240 ℃; for 10h; under 30 Torr; Temperature; Flow reactor;
94.1 %Chromat.
1,6-Hexanediamine
124-09-4

1,6-Hexanediamine

phosgene
75-44-5

phosgene

Hexamethylene diisocyanate
822-06-0,28182-81-2,28574-90-5,88357-62-4

Hexamethylene diisocyanate

Conditions
Conditions Yield
In chlorobenzene; at 185 ℃; under 30003 Torr;
97%
1,6-Hexanediamine; With hydrogenchloride; In chlorobenzene; at 40 ℃; for 2h; under 1500.15 Torr; Flow reactor; Large scale;
phosgene; In chlorobenzene; at 130 ℃; for 4h; under 1500.15 Torr; Flow reactor; Large scale;
96.5%
In chlorobenzene; at 97 - 160 ℃; for 7.5h; under 4500.45 - 23252.3 Torr;
95%
With hydrogenchloride; In chlorobenzene; at 5 - 155 ℃; for 7.16667h; under 3375.34 - 6000.6 Torr; Product distribution / selectivity;
92%
In chlorobenzene; at 5 - 155 ℃; for 7.16667h; under 3375.34 Torr; Product distribution / selectivity;
77%
at 300 - 440 ℃; for 7.5E-05h; Product distribution / selectivity; Gas phase;
With hydrogenchloride; In chlorobenzene; at 410 ℃; for 1 - 72h; under 975.098 Torr; Product distribution / selectivity;
at 300 - 450 ℃; under 1050.11 Torr; Product distribution / selectivity;
at 300 - 450 ℃; under 1050.11 Torr; Product distribution / selectivity; Gas phase;
at 300 - 450 ℃; under 1050.11 Torr; Gas phase;
at 365 ℃; Inert atmosphere;
1,6-Hexanediamine; With carbon dioxide; In toluene; at 25 - 30 ℃; for 2h;
phosgene; In toluene; at 25 - 90 ℃; for 17h;
at 430 ℃; under 975.098 Torr; Product distribution / selectivity;
With 1-amino-5-cyanopentane; 2-amino-1-cyanocyclopentene; at 420 ℃; under 675.068 Torr; Inert atmosphere;
at 400 ℃; under 1200.12 Torr; Gas phase;
N,N'-hexanediyl bis-(thiocarbamic acid (S-phenyl) ester)
61578-93-6

N,N'-hexanediyl bis-(thiocarbamic acid (S-phenyl) ester)

Hexamethylene diisocyanate
822-06-0,28182-81-2,28574-90-5,88357-62-4

Hexamethylene diisocyanate

Conditions
Conditions Yield
With thiophenol; at 290 ℃; under 15.0015 Torr; Industrial scale;
91%
1,6-Hexanediamine
124-09-4

1,6-Hexanediamine

bis(trichloromethyl) carbonate
32315-10-9

bis(trichloromethyl) carbonate

Hexamethylene diisocyanate
822-06-0,28182-81-2,28574-90-5,88357-62-4

Hexamethylene diisocyanate

Conditions
Conditions Yield
With triethylamine; at 0 - 10 ℃; for 1.83333h; Inert atmosphere;
96%
With triethylamine; at 0 - 20 ℃; for 1.5h; Inert atmosphere;
96%
1,6-Hexanediamine; With hydrogenchloride; In water; at 50 ℃; for 1h;
bis(trichloromethyl) carbonate; In 1,2-dichloro-benzene; at 125 ℃;
1,6-Hexanediamine; With hydrogenchloride; In water; at 50 ℃; for 1h;
bis(trichloromethyl) carbonate; In 1,2-dichloro-benzene; at 125 ℃;
hexane-1,6-diyl dicarbamate
40777-33-1

hexane-1,6-diyl dicarbamate

Hexamethylene diisocyanate
822-06-0,28182-81-2,28574-90-5,88357-62-4

Hexamethylene diisocyanate

Conditions
Conditions Yield
In chlorobenzene; at 140 - 210 ℃; for 1h; under 5250.53 Torr; Inert atmosphere; Green chemistry;
93.6%
1,6-Hexanediamine
124-09-4

1,6-Hexanediamine

phenyl isocyanate
103-71-9

phenyl isocyanate

Hexamethylene diisocyanate
822-06-0,28182-81-2,28574-90-5,88357-62-4

Hexamethylene diisocyanate

Conditions
Conditions Yield
With phosgene; In chlorobenzene; at 10 - 130 ℃; for 4 - 5h; Solvent;
99.6%
phosgene
75-44-5

phosgene

hexane-1,6-diamine dihydrochloride
6055-52-3

hexane-1,6-diamine dihydrochloride

Hexamethylene diisocyanate
822-06-0,28182-81-2,28574-90-5,88357-62-4

Hexamethylene diisocyanate

Conditions
Conditions Yield
phosgene; hexane-1,6-diamine dihydrochloride; With N-benzyl-N,N,N-triethylammonium chloride; In 5,5-dimethyl-1,3-cyclohexadiene; at 95 - 140 ℃; for 5h;
With triethylamine;
95%

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