UBUCIKO
UBUHLE NEMPILO
UBUCIKO BEZANDLA
AMASIKO NOMLANDO
EZOKUZIJABULISA
IMVELO
UKUDLA NEZIPHUZO
REVERSE ENGINEERING
IZAYENSI
EZEMIDLALO
UBUCHWEPHESHE
IZINTO EZIGQOKWAYO
Yingozi
Bisphenol A: Phenol and Acetone in 70 % Sulfuric Acid, Greenhalgh 1934
Phenol and acetone stirred for a day in about 70 % sulfuric acid at 45–60 °C join, two phenols to one acetone, into bisphenol A, which comes out as a solid to be filtered and washed (Greenhalgh, ICI, US 1,977,627, 1934: 65–70 % yield). Acid of this strength can be handled in lead. Bisphenol A is the other half of epoxy resin.
The picture: our diagram of the four stages.
Osezingeni eliphezulu
A day
Okuqukethwe okuyingozi
Le blueprint iqukethe izinqubo eziyingozi. Ngena ngemvume bese uvula okuqukethwe okuyingozi kuzilungiselelo ze-akhawunti yakho ukuze ubone iziqondiso zesinyathelo ngesinyathelo.
NgenaLe blueprint yenza
Ama-blueprint ahlobene
Lama-blueprint abelana ngolwazi — amasu, izinto noma izimiso
CC0 Isizinda Somphakathi
Le blueprint ikhishwe ngaphansi kwe-CC0. Ukhululekile ukukopisha, ukuguqula, ukusabalalisa, nokusebenzisa ngaphandle kwemvume.
Sekela uMenzi ngokuthenga imikhiqizo nge-Blueprint yabo IKhomishane Yomenzi kumiswe ngabathengisi, noma dala inguqulo entsha yale Blueprint bese uyifaka njengoxhumaniso ku-Blueprint yakho ukuze wabelane ngemali engenayo.