GR2247B
(en )
1929-04-05
METHOD FOR SALTING CALCIUM SALTS BY SULFURIC ACID OR ITS SALTS.
ES119882A1
(en )
1930-11-16
PROCEDURE FOR OBTAINING AMONIC OR POTASSIC CARNALITE
SU10394A1
(en )
1929-07-31
The method of purification of sulfuric acid salt
SU23396A1
(en )
1931-10-31
The method of obtaining cinnamic acid
SU10952A1
(en )
1929-09-30
The method of obtaining ortho-nitrobenzoic acid
DK44524C
(en )
1931-08-24
Method of Making Acid Toothpaste.
GR3024B
(en )
1930-12-08
METHOD FOR SEPARATION OF SULFUR FROM THE VARIOUS FEEDS BY USING SULFURIC ACID OR OTHER SOLUTIONS OF METAL SALTS.
GR3036B
(en )
1930-12-16
METHOD OF EXEMPTION FROM SULPHATE SALTS OF SALT WATER SALTS OR SALT SOLUTIONS (LESSIVES) OF SIMILAR COMPOSITION TO EPILITIOUS
GR1205B
(en )
1926-06-12
METHOD FOR ACID PREPARATION.
ES121102A1
(en )
1931-01-16
PROCEDURE FOR OBTAINING IODOMETHANOSULPHONIC ACID
GR2060B
(en )
1928-11-24
METHOD FOR EMULSING ASPHALT OR ASPHALT MATERIALS BY WATER.
ES114373A1
(en )
1929-09-01
Procedure for obtaining chemically pure phosphoric acid.
DK44033C
(en )
1931-04-20
Procedure for Purifying Benzoic Acid.
ES123586A1
(en )
1931-08-16
PROCEDURE FOR CONCENTRATING AQUEOUS FORMIC ACID
ES117651A1
(en )
1930-05-01
Procedure for the electrolytic purification of aqueous solutions.
DK44732C
(en )
1931-10-19
Method of Preparation of Acylaminobenzolstibic Acids.
DK44730C
(en )
1931-10-19
Method of Preparation of Acylaminobenzolstibic Acids.
DK43175C
(en )
1930-10-13
Method for the preparation of readily soluble sodium salts of acylaminophenolaric acids.
ES120703A1
(en )
1930-12-16
Process for the manufacture of sulfuric acid.
DK36316C
(en )
1926-08-02
Procedure for the production of hydrofluoric acid.
ES101652A1
(en )
1927-04-01
A method for obtaining carbonic acid.
DK39845C
(en )
1929-02-25
Procedure for the production of hydrocyanic acid.
GR2580B
(en )
1929-12-20
METHOD FOR PREPARATION OF ICE COCONUT.
ES106343A1
(en )
1928-04-16
Procedure for obtaining concentrated sulfuric acid or liquid.
CH145609A
(en )
1931-02-28
Process for the preparation of 1-w-aminomethylnaphthalene-2,4-disulfonic acid.