Phosphorus salts

Microcat-NPC. Nitrogen and phosphorus salts in time release form... 

Microcat-NPN. Nitrogen and phosphorus salts to augment site nutrients... 

Minerals found in milk which are insoluble remain in water in the curd and are more concentrated in the cheese than in milk. About two-thirds of the calcium and one-half of the phosphorus of milk remains in cheese. A major portion of the milk calcium is retained in the curd of cheese made with coagulating enzymes. Acid coagulation alone results in the loss of portions of both calcium and phosphorus salts in the acid whey, since these minerals are more soluble in the acidic medium. Most milk fat and fat-soluble vitamins are retained in the curd, but a considerable amount of water-soluble vitamins is lost during cheese manufacture. Retention of part of some B-complex vitamins in curd is due to their extended association with casein in the original milk. 

Page 19k A little borax or phosphorus salt is sometimes added, in order to make the ash fusible. 

Lithium salts of the lower oxy-acids of phosphorus.—Salts of hypo-phosphorous, phosphorous, pyrophosphorous, and hypophosphoric acids have been described.1... 

Kratzer studied the effect of different phosphorus salts on zinc utilization in turkey poults. They fed diets which contained marginal (15 pg/g)levels of zinc. Hence they assumed any factor that inhibited zinc absorption would create a zinc deficient state in the animals and growth would be depressed. They observed if they mixed the zinc and phosphorus salts prior to their addition to the dry diet, most phosphorus salts, especially tripolyphos-phate, would depress growth in the turkey poults. However, if they did not mix the zinc and phosphorus salts prior to their addition to the dry diet, the phosphorus salts did not significantly affect growth of the animals. 

Table III. Effect of various phosphorus salts on zinc utilization as indicated by weight gain of turkey poults...

The effect of various forms of phosphorus salts on zinc and iron utilization in men have not been assessed. Differences in the cecal lora growth of rats and men could result in differences between the two species in their ability to hydrolyze polyphosphates (33. 34). Thus, at this time it is difficult to speculate whether equal quantities of orthophosphates and polyphosphates in the diet would have different effects on zinc and iron utilization by human subjects. 

Fewer investigators have studied the effect of calcium and phosphorus salts on zinc metabolism in animals than have studied the effect on iron metabolism. The addition of both inorganic calcium and phosphorus to the diet of rats (44.50.51.65) and trout (66) has been found to depress zinc utilization by these animals. However, no changes in zinc metabolism were noted in pigs (47,59) and horses (48) fed high levels of calcium and phosphorus. 

The levels of many other compounds (i.e. ascorbic acid, protein and calcium) in the diet can moderate the effects of phosphorus on zinc and iron utilization. Probably the most important of these factors is calcium. If both inorganic calcium and phosphorus salts are added to a diet, the bioavailability of iron and probably zinc from that diet will be depressed probably. 

Parenteral phosphorus supplementation is associated with risks of hyperphosphatemia, metastatic soft tissue deposition of calcium-phosphate product, hypomagnesemia, hypocalcemia, and hyperkalemia or hypernatremia (caused by intravenous phosphorus salt) (Table 49-9). Inappropriate administration of large doses of parenteral phosphorus over relatively short time periods has resulted in symptomatic hypocalcemia and soft-tissue calcification. The rate of infusion and choice of initial dosage should therefore be based on severity of hypophosphatemia, presence of symptoms, and coexistent medical conditions. Patients should be closely monitored with frequent (every 6 hours) serum phosphorus determinations for 48 to 72 hours after starting intravenous therapy. It may be necessary to continue administration of intravenous phosphorus for several days in some patients, while other patients may be able to tolerate an... 

Coal, petroleum, cellulose, limestone, sulfur, phosphorus, salt, clays, air, water, lead, zinc, copper, iron, boron, chromium, manganese, lithium, aluminum... 

Less than a stoichiometric quantity of the phosphorus salt is used because formation of Na[Co(CO)4] is not quantitative. 

Pyron. [Chemonic Imbistiies] Btomi-nated pbosphonated amines and nitrogen phosphorus salts flame retardants for textiles. 

Berzelius had shown that the quantities of oxygen combined with equal amounts of phosphorus and arsenic in the phosphites and phosphates, and in the arsenites and arsenates, are in the ratio 3 5, and each acid forms three series of salts (i.e., is tribasic). Mitscherlich says for every arsenical salt there is a corresponding phosphorus salt. The so-called neutral salts have the oxygen of the base to that in the acid as 2 5, contain the same amount of water of crystallisation, and precipitate barium chloride leaving a neutral solution. These were formulated by Berzelius as NaO + PO and NaO + AsO (Na=4 X 23, P = 2 x 31, As = 2 x 75) together with combined water they are our Na2HP04 and Na2HAs04, and the reactions with barium chloride are... 

Typical procedure. Dehydration of carbamate anions with POCI3 [286] The amine (5 mmol), base/NH2 (15 mmol), and biphenyl (154 mg internal standard) were dissolved in acetonitrile (25 mL) and CO2 (1 atm) was passed in for up to 1 h. POCI3 (1 equiv./NH2) was diluted vith acetonitrile (25 mL) and both solutions were cooled to 0 °C prior to addition of the carbamate solution to the POCI3. The progress of the reaction was monitored by GC analysis until no more isocyanate was produced. Isolated yields, i.e. following an aqueous acid extraction to remove the phosphorus salts and purification by distillation, are reported in Table 4.19. Virtually identical yields were obtained by using 1 equiv. of PCI3/NH2 under the same conditions. 

Rickets—Lack of vitamin D will cause rickets in infants and children, even though the diet is adequate in calcium and phosphorus. (Rickets may also be caused by lack of either calcium or phosphorus, or an incorrect ratio of the two minerals.) This disease is caused from failure of the bones to calcify normally (meaning that the deposition of calcium and phosphorus salts is not normal). As a result, they are soft and pliable and become deformed. The weight of the body causes the ends of the long bones of the legs to... 

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