DE172885A - - Google Patents
Info
- Publication number
- DE172885A DE172885A DE172885A DE 172885 A DE172885 A DE 172885A DE 172885 A DE172885 A DE 172885A
- Authority
- DE
- Germany
- Prior art keywords
- sulfuric acid
- mixture
- acid
- fuming sulfuric
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002253 acid Substances 0.000 claims description 6
- 150000007513 acids Chemical class 0.000 claims description 4
- HIFJUMGIHIZEPX-UHFFFAOYSA-N sulfuric acid;sulfur trioxide Chemical compound O=S(=O)=O.OS(O)(=O)=O HIFJUMGIHIZEPX-UHFFFAOYSA-N 0.000 claims description 4
- 230000001476 alcoholic effect Effects 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims 1
- 238000012986 modification Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 description 5
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- FTOAOBMCPZCFFF-UHFFFAOYSA-N 5,5-diethylbarbituric acid Chemical compound CCC1(CC)C(=O)NC(=O)NC1=O FTOAOBMCPZCFFF-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229960002319 barbital Drugs 0.000 description 2
- 150000001805 chlorine compounds Chemical class 0.000 description 2
- CHWFAVVSXUCYSI-UHFFFAOYSA-N ethyl N-[3-[ethoxycarbonyl(ethyl)amino]-3-oxopropanoyl]-N-ethylcarbamate Chemical compound C(C)N(C(=O)OCC)C(CC(=O)N(C(=O)OCC)CC)=O CHWFAVVSXUCYSI-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 150000003673 urethanes Chemical class 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 1
- SOADRDMVFUBXCF-UHFFFAOYSA-N ethyl N-[3-[ethoxycarbonyl(propyl)amino]-3-oxopropanoyl]-N-propylcarbamate Chemical compound C(CC)N(C(=O)OCC)C(CC(=O)N(C(=O)OCC)CCC)=O SOADRDMVFUBXCF-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- RCOUWKSZRXJXLA-UHFFFAOYSA-N propylbarbital Chemical compound CCCC1(CCC)C(=O)NC(=O)NC1=O RCOUWKSZRXJXLA-UHFFFAOYSA-N 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Family
ID=
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