Fosfor is among a clutch of Indian artisanal pen makers who are attracting world-wide attention these days. For years they have worked in relative obscurity, operating out of hole-in-the-wall
White phosphorus is one of three allotropes of the element phosphorus. The other two are red, an amorphous polymer, and black, a graphitelike polymer. The substance known as yellow phosphorus is actually white phosphorus that contains impurities (e.g., red phosphorus) or that has darkened from exposure to light.Gypsum may seem like a miracle solution for soil, if what you need is a miracle. If your clay soil is high in sodium and the sodium has replaced other minerals, like magnesium or calcium, the soil will separate or disperse into fine particles that stick to your boots and tools. Luckily, gypsum makes soil less sticky.kjFgLqL.