Biologically active mineral products and process for producing thereof when complex treating rock from cement factory, lime works and building stone works quarries
CS908488A2
Method of n,n-bis/4-sulfoazobenzen/-1,4-benzendicarboxamide's acid salts preparation
CS691688A1
Method of reactive dichlorotriazine red's stable crystalline modification's preparation
CS1001887A1
Method of isomer aminoalkylbenzenes' mixtures separation
CS457787A1
Acid ammonium salts of polyhydric carboxyl aliphatic acids and method of their preparation
CS141087A1
Method of polyaramides production
CS445586A1
Process for preparing raw inside salt of 2,4-diamino-1,3,5-trimethylbenzen-6-sulphonic acid without chlorides
CS361886A1
Process for preparing aqueous solutions of hydrotropic agents from magnesium salts of sulphonated alkylaromates
CS242686A1
Protective insulation material for dangerous liquids' storage and transportation
CS493085A1
Method of 1-amino-4-alkylamino- or arylaminoantraquinone-2-sulphonic acids' and their salts' preparation
CS246976B1
Preparation method of the technical mixtures of pottasium biammonium salts of the sulpho-phtalic acid
CS247026B1
Brown reactive bisazopigments and method of their preparation
CS230585A1
Preparation method of a technical ammonium 4-sulfoftalimide
CS249378B1
Hift efficient copper catalysts accelerating some mucleophylic substitions of aromatic compounds
CS247910B1
3,6-d2-2-hydroxynaphthalene and method of its preperation
CS243581B1
Method of i-methyl-5-chloro-1-4-diaminobenzene production
CS1062784A1
Method of p-or o-aminoarylsulphonic acids production
CS915484A1
Condensation hydrazopigments and method of their prepararation
CS811984A1
Method of 2,3-dimethyl-p-phenylendiamine production from azo-dye-stuffs
CS636684A1
Continuous method of tetrasulphonated phthalocyanines production
