What causes the formation of a solid clump at the bottom of the bottle in a mouthwash containing 30 g sodium borate, 20 g sodium bicarbonate, 10 g mint spirit, and water up to 600 ml, even though the solubilities appear to be correct?

What is the recommended method for mixing 3.25 mg/g neomycinsulfate and 5% LCD in Diprosone lotion, given that the initial preparation resulted in a precipitate due to the incompatibility between neomycinsulfate and NaCMC, and a subsequent attempt using a non-ionic viscosity enhancer (0.3 g Klucel with 19.2 mg betamethasone dipropionate, 10 g propylene glycol, 10 g isopropanol, and 10 g water) also produced a precipitate?

How can beclometasone dipropionate powder best be processed to replace Syntaris when Beconase Aqua is unavailable, given a prescription for a Rinoflow device consisting of 24 ml Syntaris, 0.2 g glycerine, 1.8 g NaCl, 0.4 g propylene glycol, 100 mg neomycin sulfate, 5000 IU bacitracin, and 40 ml Atrovent, with water added up to 200 ml?

I have a prescription with prasterone and calcium carbonate as a filler; can lactose or mannitol also be used?

What is a simple formula for a disinfectant hand gel (alcogel) for use in Africa by the group "Doctors Without Vacation," ensuring all raw materials are commonly available locally and that the preparation, packaging, and use remain simple?

Given that 1 part phenol plus 10 parts water results in approximately 9% phenol, is the statement that it is 90% phenol a mistake, and what solvent should be used for a solution containing 80% phenol?

How can the discoloration of the pasta contra aphtas NF 6 be avoided?