GB1228512A - - Google Patents

Info

Publication number
GB1228512A
GB1228512A GB1228512DA GB1228512A GB 1228512 A GB1228512 A GB 1228512A GB 1228512D A GB1228512D A GB 1228512DA GB 1228512 A GB1228512 A GB 1228512A
Authority
GB
United Kingdom
Prior art keywords
dimethylol
march
hydrazine
purification
hydride
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.)
Expired
Application number
Other languages
English (en)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of GB1228512A publication Critical patent/GB1228512A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C335/00Thioureas, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C335/04Derivatives of thiourea
    • C07C335/06Derivatives of thiourea having nitrogen atoms of thiourea groups bound to acyclic carbon atoms
    • C07C335/08Derivatives of thiourea having nitrogen atoms of thiourea groups bound to acyclic carbon atoms of a saturated carbon skeleton
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/18Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas
    • C07C273/189Purification, separation, stabilisation, use of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Preparation (AREA)
  • Cosmetics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
GB1228512D 1968-03-29 1969-03-20 Expired GB1228512A (en))

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH464568A CH495165A (de) 1968-03-29 1968-03-29 Verfahren zur Entfernung von Formaldehyd

Publications (1)

Publication Number Publication Date
GB1228512A true GB1228512A (en)) 1971-04-15

Family

ID=4279984

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1228512D Expired GB1228512A (en)) 1968-03-29 1969-03-20

Country Status (5)

Country Link
BE (1) BE724179A (en))
CH (1) CH495165A (en))
DE (1) DE1914009A1 (en))
FR (1) FR2005105A1 (en))
GB (1) GB1228512A (en))

Also Published As

Publication number Publication date
BE724179A (en)) 1969-05-02
FR2005105A1 (en)) 1969-12-05
DE1914009A1 (de) 1969-10-16
CH495165A (de) 1970-08-31

Similar Documents

Publication Publication Date Title
GB995031A (en) 6-methylene-tetracyclines and method of preparing same
GB1364307A (en) 4-substituted-6-7-dialkoxy or methylenedioxy-quinazolines and compositions containing them
GB1237780A (en) Processing offgas from the synthesis of melamine
GB1310362A (en) Process for purification of refractory metal nitrides
GB1274504A (en) Improvements in or relating to the synthesis of ammonia
GB1228512A (en))
GB1353655A (en) Urea synthesis
GB1320513A (en) Process for the manufacture of boron nitride
ES366470A1 (es) Un procedimiento para la preparacion de pirazinoilgunidinasy pirazinomidoguanidinas.
ES282862A1 (es) Procedimiento para producir urea de gran pureza
GB980769A (en) Process for the production of dinitrotoluenes
GB1143589A (en) Process for the preparation of 2-amino-4-hydroxytoluene
ES403904A1 (es) Procedimiento para la obtencion de derivados de la antra- quinona.
GB544675A (en) Improvements in or relating to the prevention of caking or setting of ammonium nitrate or ammonium nitrate compositions
CH360378A (fr) Procédé de purification d'une solution d'hypophosphite alcalin contenant comme impureté un phosphite alcalin
GB1334871A (en) Urea crystals pellets prills and the like
ES356613A1 (es) Un procedimiento para preparar 4-fluoro-3-nitroanilina.
ES266622A1 (es) Un procedimiento para la preparaciën de superficies de madera y de tableros compuestos de particulas para su acabado
ES273164A1 (es) Un procedimiento para la preparaciën de lactamas
GB1492006A (en) Process for the production of maddrell's salt
GB1480200A (en) Anthraquinone compounds
GB1130499A (en) Process for the production of 5-nitro-1,4-dihydroxy-anthraquinone
GB806568A (en) Initiating compositions for electric detonators and processes for the production thereof
FR1269825A (fr) Procédé de préparation de substances catalytiques et procédés d'alcoylation et de polymérisation utilisant de telles substances
ES247384A1 (es) Proceso de producciën de una n-(5-nitro-2-furil) alquilideno hidracida de fërmula o2no-ch=n-a i"

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees