### salt | phosphate:

Ammonium phosphate
* Some ammonium phosphates contain additional materials, such as sulfuric acid and urea.
* has a low to moderate toxicity.
* is added after color development to remove the ferric chloride color
  - to remove the color due to the ferric iron
  - inorganic compounds
  - solids
  - used in fertilizer to replenish nitrogen to the soil
* meet that criteria and supply some N as well.

Calcium phosphate
* calcium salt found in or derived from bones or bone meal.
* is phosphate
  - the other product
  - used to make fine chinaware
* makes up the inorganic part of bone and contributes hardness.

Excess phosphate
* can choke freshwater ecosystems.
* creates blooms of extensive algal growth.
* poses an environmental threat.

Inorganic phosphate
* Most inorganic phosphates are relatively nontoxic and essential nutrients.
* are relatively harmless.
* can come from weathering of rocks or it can be added in the form of fertilizer.
* is released by the hydrolysis of adenine nucleotides

Manganese phosphate
* is one of the best wear resistant coatings.
* runs a medium to charcoal gray, as does iron phosphate.

Organic phosphate
* are important in cellular energy storage and transfer
  - nature
  - phosphate sources in most soils
* come from once-living plants and animals.
* is phosphate that is bound to plant or animal tissue.
* part of living plants and animals, their by-products, and their remains.
* vary in stability and shelf life.

Rock phosphate
* Some rock phosphate contains fluorine.
* come available slowly, but steadily in an organic system.
* is great for root development
  - mined
  - simply further acid-treated to produce highly soluble triple superphosphate

Sugar phosphate
* Many sugar phosphates are important intermediates in photosynthetic and respiratory metabolism.
* are important intermediates in metabolism, functioning as activation synthases.

Zinc phosphate
* prevents corrosion from creeping or spreading under the painted surface.
* type of phosphate that is usually gray.
* white solid.
+ Zinc phosphate, Properties: Phosphorus compounds :: Zinc compounds
  * Zinc phosphate is a white solid. It does not dissolve in water. It can react with strong acids to make phosphoric acid and a zinc salt.

Polyphosphate
* are salt
  - simply long chains of orthophosphates
* cause polymerization of amino acids into peptides.
* consist of a series of orthophosphates that have been chemically joined together.
* differ slightly from the more common orthophosphate fertilizers.
* is salt
* soluble mineral compound which acts as a sequestering agent when added to water.

Potassium bromide
* are chemical compounds
  - crystal
  - ionic compounds
* is salt
* is used as a veterinary drug, as an antiepileptic medication for dogs
  - in photography, engraving and lithography, and in medicine as a sedative
* salt, like sodium chloride, and can cause stomach upset.
* works by competing with chloride ions for access to brain tissues.

### salt:

Potassium carbonate
* is basic and as such, is generally used in basic media
  - carbonate
  - found to effect the most enhancement of reaction rate at all compositions
  - ionic compounds
* valuable nutrient for plants.
* white solid.
+ Potassium carbonate, Properties: Potassium compounds :: Carbonates
  * Potassium carbonate is a white solid. It dissolves in water. It is similar to sodium carbonate. It reacts with acids to make carbon dioxide and a potassium salt. It does not dissolve in alcohol. It is basic.