carbonato de sodio

Una roca sedimentaria compuesta principalmente por carbonato de calcio (CaCO3). Las piedras caliza y dolomita son rocas sedimentarias comunes de carbonato.

sodio

Chimie; Chimie générale

Elemento metálico con un símbolo Na y número atómico 11. Se trata de un metal, suave, de color blanco plateado, altamente reactivo y es un miembro de los metales alcalinos.

de

Langue; Dictionnaires

Function words; prepositions; this one is a duplication.

luz

Photographie; Photographie Professionnelle

visible radiated energy which forms part of the electro-magnetic spectrum in the wavelength range of 4000-7000 Å (400-720 nm).

ablandadores del agua

Photographie; Photographie Professionnelle

are used to eliminate most of the minerals and slats found in hard water.

nuevo realismo

Photographie; Photographie Professionnelle

is an alternative name for New Objectivity.

bisulfito de sodio

Photographie; Photographie Professionnelle

chemical used in fixing baths as an acidifying agent.

mesa de luz

Photographie; Photographie Professionnelle

box of fluorescent tubes balanced for white light and covered with translucent glass or plastic. Used for viewing, registering or correcting film negatives and positives.