### chemical compounds | carbonate:

Barium carbonate
* can dissolve in stomach acid, so it is toxic.
* gives permanent magnetic properties to the ferrites used in small electric motors.
  - crystal
  - electrolytes
  - ionic compounds
  - organic compounds
* is used as rat bait
  - in glass, as a pottery glaze, and as a rat poison
  - to poison rats
* occurs as 'witherite'
  - the mineral witherite
* rat poison and can also be used in making bricks.
* white solid.
+ Barium carbonate, Occurrence
  * Barium carbonate occurs as 'witherite'. Witherite is the main source of barium salts. It is more easily turned into other barium compounds than barium sulfate, barite. It is heavily mined in Northumberland. It turns into barium sulfate when water containing sulfates flows through it
  - Properties: Barium compounds :: Carbonates
  * Barium carbonate is a white solid. It does not dissolve in water. It reacts with acids to make barium salts. It turns into barium oxide and carbon dioxide when heated. It reacts with sulfuric acid to make barium sulfate though
  - Safety
  * Barium carbonate can dissolve in stomach acid, so it is toxic. There is a controversy over whether it should be used as a glaze
  - Uses
  * Barium carbonate is used to poison rats. It is also used in making bricks. It is also used to glaze ceramics. This glaze can make different colors

Copper carbonate
* is considered to have intermediate availability
  - used in pottery glazes, and is available from large ceramics suppliers
* natural form of copper.

Lanthanum carbonate
* hygroscopic powder soluble in water and acids.
* is used as a phosphate binder cases of renal failure
  - to reduce blood levels of phosphate in patients with kidney disease

Magnesium carbonate
* is an additive for lubricants
  - antacids
  - electrolytes
  - inorganic compounds
  - ionic compounds
  - medicine
  - the buffer in Wei T'o
  - used as a filler in paper and as an antacid
* offers better protection against aging than calcium carbonate.

Zinc carbonate
* makes zinc oxide when heated.
* source of the mineral zinc.
+ Zinc oxide, Preparation: Zinc compounds :: Oxides
  * Zinc oxide can be made by heating powdered zinc metal. It can also be made by heating zinc hydroxide. It can be made by boiling zinc metal in air. Zinc carbonate makes zinc oxide when heated.

Ethidium bromide
* are chemical compounds.
* can inhibit restriction enzyme digestion.
* is mutagenic at higher concentrations
  - strongly mutagenic, causing living cell mutations
* is used to detect the nucleic acids
  - stain the gels after running
  - very carcinogenic

Guar gum
* can cause diarrhea, vomiting, bloating, and intestinal blockages.
* is chemical compounds
  - gum
  - more soluble than locust bean gum , as it has more galactose branch points
* shows close groups of round to pear formed cells, their contents being yellow to brown
  - viscosity synergy with xanthan gum

### chemical compounds | lipid | oil | grease:

Dielectric grease
* does the same for electrical contacts.
* is non-conductive.
* lubricant composed of petroleum grease with an added thickener.

Hot grease
* can spatter and ignite any paper, cloth, or wood materials nearby
  - cloth, or wood nearby
* cools quickly in a sanitary sewer.
* is capable of burns.

Thermal grease
* improves the heat conductivity between the processor and the heat sink.
* is applied between the contact surfaces.

### chemical compounds | organic ester | lactate:

Ammonium lactate
* combination of lactic acid and ammonium hydroxide.
* is used to treat dry skin.

### chemical compounds | organic neurochemical | endorphin:

Enkephalin
* are also pain killers
  - as effective as morphine in killing pain
  - endorphins
  - proteins
  - small proteins
  - the body's own morphine. * small proteins. They consist of five amino acids in each of their molecules
* is an endorphin