Effervescent barium sulfate-pectin x-ray contrast composition

Claim 1

A COMPOSITION IN DRY POWDER FORM WHICH WHEN MIXED WITH WATER SUBSTANTIALLY IMMEDIATELY FORMS A SUSPENSION OF MEDIA TO BE USED INTERNALLY FOR FLUOROSCOPIC OBSERVATIONS AND ROENTGENOGRAPHY OF THE ESOPHAGUS, RUGAE OF THE INTESTINAL TRACT, AND GASTROENTERIC MUCOSA AND AS AN ENEMA TO PRODUCE CONTRASTS FOR STUDY AND VISUALIZATION OF THE LOWER BOWEL TRACT COMPRISING, A MIXTURE OF THE FOLLOWING INGREDIENTS AND PROPORTIONS, BARIUM SULPHATE, PECTIN NF 30 TO 70 GRAINS, SODIUM CARBONATE 2.5 TO 4 GRAINS, AND A DRY ORGANIC ACID SELECTED FROM THE GROUP CONSISTING OF TATRARIC AND CITRIC ACID, EACH BEING IN A FINELY DIVIDED STATE, SAID COMPOSITION BEING CHARACTERIZED BY THE FACT THAT WHEN MIXED WITH WATER THE ORGANIC ACID, SODIUM CARBONATE AND PECTIN REACT TO PRODUCE A HYDROGEN ION CONCENTRATION WHICH ACCELERATES DIGESTION OF THE PECTIN WHEREBY SUBSTANTIALLY IMMEDIATELY A VISCOUS, HOMOGENEOUS, MUCILAGINOUS, STABILIZED COLLOIDAL LIQUID IS FORMED IN WHICH THE BARIUM SULPHATE AND PECTIN ARE SUSTAINED IN SUSPENSION, SAID SODIUM CARBONATE AND ORGANIC ACID BEING ADJUSTED IN QUANTITY RELATIVE TO THE PH OF THE PECTIN IN A SELECTED QUANTITY OF WATER WHEREBY WHEN THE COMPOSITION IS MIXED WITH WATER AND REACTION CEASES THE PH OF THE RESULTING SOLUTION IS IN THE RANGE OF 3 TO 6.