### nitrate:

Excess nitrate
* accumulate in plants when they are stressed.
* can cause serious problems for infants
  - stimulate rapid growth of algae in the marsh channels

Excessive nitrate
* are dangerous to infants under a year of age.
* can result in restriction of oxygen transport in the bloodstream.

High nitrate
* can cause blue baby syndrome
  - contribute to animal feed problems and deadly silo gas
* feeds reduce the uptake of iodine in the digestive tract.

Nitrocellulose
* increases heart rates.
* is nitrate

Nitroglycerin
* can alleviate the pain of angina or blow up a building.
* relieves chest pain when placed under the tongue.

Organic nitrate
* are present in human sewage and livestock manure.
* can be important reservoir species for tropospheric NOx.

### nitrate:

Silver nitrate
* bacteriostatic agent to which bacterial resistance is rare.
* causes black stains on skin
  - the skin to turn black when exposed to sunlight
* colorless crystalline solid.
* is also very expensive
  - available at many pharmacies and first aid or sports medicine suppliers
  - chemical compounds
  - colourless and odourless
  - ionic compounds
  - located in chemistry labs
  - of very low toxicity
  - superior to talc slurry in producing pleurodesis in rabbits
  - used as a cauterizing agent and destroys skin
* strong oxidising agent.
+ Silver nitrate, Properties: Silver compounds :: Nitrogen compounds
  * Silver nitrate is a colorless crystalline solid. It dissolves in water. Most silver compounds do not dissolve in water. It can get dark if light shines on it. It is an oxidizing agent. Most of the times the silver ion is reduced, but sometimes the nitrate ion is reduced.

Nitride
* Some nitride is produced along with the oxide, when lanthanum metals are ignited in air.
  * In chemistry, a 'nitride' compound of nitrogen with a less electronegative element, attached together in a specific way. Nitrides are a large class of compounds with a wide range of properties and applications.

### nitride:

Boron nitride
* inorganic material with low reactivity and several applications.
* is chemical compounds
  - produced synthetically
  - slippery and slip hazard on walkways
  - the hardest known substance
  - used to make harder materials
* material isoelectronic to carbon.

Nitrogen compound
* Some nitrogen compounds are excreted by animals
  - graze animals
  - highly reactive
  - find in food
  - occur in diets
  - produce smoke
* are basic building blocks in animal biology as well
  - present in organic materials, foods, fertilizers, explosives and poisons
* can affect the cycling of tropospheric nitrogen and ozone.
* eat away at stones.
* return to the soil through animal waste.

### nitrogen fixing plant:

Sea buckthorn
* can control soil erosion and water loss effectively and aid land reclamation.
* is also salt tolerant
  - tolerant of alkaline and saline soils
  - useful as an ornamental shrub
  - native to Europe and Asia and was introduced to Canada some time ago
* nitrogen fixing plant.

### nocturnal:

Australian mammal
* Most Australian mammals are nocturnal.
* Most australian mammals produce concentrate urine
* Some australian mammals become pests
  - live in areas

### nocturnal:

Pinecone fish
- popular in aquariums , but are expensive and a challenge for the hobbyist
* have a bioluminescent organ under their eye that they use to signal one another.
+ Monocentridae, Life history
  * Pinecone fishes live in ledges and caves, rocky and coral reefs over a hard bottom. Pinecone fishes are nocturnal.
+ Monocentridae: Ray-finned fish
  * Pinecone fishes' are small and unusual fish of the family 'Monocentridae'. The family contains just four species. They live in tropical and subtropical waters of the Indo-Pacific. Pinecone fishes are popular in aquariums, but are expensive and a challenge for the hobbyist.