Definition of Bologna phosphorus. Meaning of Bologna phosphorus. Synonyms of Bologna phosphorus

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Definition of Bologna phosphorus

Bologna phosphorus
Phosphorus Phos"phor*us, n.; pl. Phosphori. [L., the morning star, Gr. ?, lit., light bringer; ? light + ? to bring.] 1. The morning star; Phosphor. 2. (Chem.) A poisonous nonmetallic element of the nitrogen group, obtained as a white, or yellowish, translucent waxy substance, having a characteristic disagreeable smell. It is very active chemically, must be preserved under water, and unites with oxygen even at ordinary temperatures, giving a faint glow, -- whence its name. It always occurs compined, usually in phosphates, as in the mineral apatite, in bones, etc. It is used in the composition on the tips of friction matches, and for many other purposes. The molecule contains four atoms. Symbol P. Atomic weight 31.0. 3. (Chem.) Hence, any substance which shines in the dark like phosphorus, as certain phosphorescent bodies. Bologna phosphorus (Chem.), sulphide of barium, which shines in the dark after exposure to light; -- so called because this property was discovered by a resident of Bologna. The term is sometimes applied to other compounds having similar properties. Metallic phosphorus (Chem.), an allotropic modification of phosphorus, obtained as a gray metallic crystalline substance, having very inert chemical properties. It is obtained by heating ordinary phosphorus in a closed vessel at a high temperature. Phosphorus disease (Med.), a disease common among workers in phosphorus, giving rise to necrosis of the jawbone, and other symptoms. Red, or Amorphous, phosphorus (Chem.), an allotropic modification of phosphorus, obtained as a dark red powder by heating ordinary phosphorus in closed vessels. It is not poisonous, is not phosphorescent, and is only moderately active chemically. It is valuable as a chemical reagent, and is used in the composition of the friction surface on which safety matches are ignited. Solar phosphori (Chem.), phosphorescent substances which shine in the dark after exposure to the sunlight or other intense light.

Meaning of Bologna phosphorus from wikipedia

- Vincenzo Cascariolo used barite, found at the bottom of Mount Paterno near Bologna, in one of his non-fruitful attempts to produce gold. After grinding and...
- previously discovered Bologna Stone). Brand kept his discovery secret, as alchemists of the time did, and worked with the phosphorus trying unsuccessfully...
- and literature for children and adults, and celebrated in cities such as Bologna for their meat products. The pig has a large head, with a long snout strengthened...
- growth. Common macronutrients analyzed include compounds of nitrogen, phosphorus, pot****ium, calcium, magnesium, and sulfur. Soil is also ****essed for...
- for the province of Reggio Emilia); it is also produced in the part of Bologna west of the River Reno and in Modena (all of the above being located in...
- since the early Iron Age during the Villanova period, founded the city of Bologna and spread the use of writing; later, starting from the 5th century BC...
- electrophilic chlorides including acyl chlorides, sulfur chlorides, and phosphorus chloride. Like other fluorides, sodium fluoride finds use in desilylation...
- 2016.10.021. Retrieved 2023-02-20. "Erbaio fotografico". Università di Bologna - Dipartimento di scienze e tecnologie agro-alimentari. 2019. "Rapini (broccoli...
- were carried out by a joint Turco-Italian team from the Universities of Bologna, Gaziantep, and University of Istanbul under the direction of Prof. Dr...
- relocating small industries and manufactures, including a brick factory and a phosphorus matches factory. Rimini's muni****lity includes the coastal districts...