Detail of "7785-21-9"

Reference

Impact of oral short-term CG-120 administration to healthy humans, with special reference to stone-forming substances

Impact of oral short-term CG-120 administration to healthy humans, with special reference to stone-forming substances. Ogawa, Yoshihide; Uji, Yasuaki (Sch. Med., Juntendo Univ., Japan). Yakuri to Chiryo, 14(8), 5273-93 (Japanese) 1986. CODEN: YACHDS. ISSN: 0386-3603. DOCUMENT TYPE: Journal CA Section: 1 (Pharmacology) CG-120 [55049-48-4] (orally) was given to healthy volunteers for 5 days at 1 g or 3 g thrice daily (tid) or 1 g four times daily (qid).Several reagents with their cas registry numbers 69-93-2 and 77-92-9 are used here. The drug increased plasma and urine citrate [77-92-9] and alkalinized the urine. The drug did not change the oxalate [144-62-7] excretion or concn. There were tendencies toward a slight decrease in the urinary excretions and concns. of Ca2+ and Mg2+, without altering serum Ca2+ and Mg2+, and toward a slight increase in the urinary excretion and concn. of uric acid [69-93-2], without altering the serum uric acid. There was a significant improvement in the urinary Ca oxalate satn. when the 3-g-tid regimen was used, but not the other regimens; the 1-g-qid regimen offered a slightly more beneficial effect than the 1-g-tid regimen. The potential risk of increasing the urinary satn. levels of brushite [14567-92-1], octacalcium phosphate [13767-12-9], magnesium ammonium phosphate [7785-21-9], sodium acid urate [18276-12-5], and ammonium acid urate [18276-11-4] was excluded. CG-120 improved Ca oxalate satn. without causing any adverse effect. .

Improved scheme for the analysis of high-purity talc

Improved scheme for the analysis of high-purity talc. Norwitz, George; Gordon, Herman (Frankford Arsenal, Philadelphia, Pa., USA). Talanta, 24(3), 159-62 (English) 1977. CODEN: TLNTA2. DOCUMENT TYPE: Journal CA Section: 50 (Propellants and Explosives) Talc (0.5 g) was fused with 2 g Na2CO3, cooled, dissolved in HClO4 so that the melt floated free from the crucible, stirred with dil. HCl, evapd. to fumes of HClO4, filtered, and SiO2 in the residue was ignited and detd. from the wt. loss. The filtrate was heated to 90.degree., made alk. to Me Red, filtered, made just acid to Me Red and MgO present was pptd. as MgNH4PO4 [7785-21-9]. A correction was made for that Ca which was copptd. with Mg. Total Al2O3 + Fe2O3 was detd. by dissolving 2 g talc in HNO3-HF, evapg. to HClO4 fumes, filtering, making the hot filtrate alk. to Me Red, and igniting the ppt. formed to 1000.degree.. Fe2O3 and CaO were detd. after dissolving 2 g talc in HNO3-HF and heating to HClO4 fumes, by at. absorption spectrometry in an air-C2H2 flame. Al2O3 was detd. by difference. Results are given for 3 high-purity talc samples.