Acid-free paper

Acid-free paper is paper that if infused in water yields a neutral or basic pH (7 or slightly greater). It can be made from any cellulose fiber as long as the active acid pulp is eliminated during processing. It is also lignin- and sulfur-free. Acid-free paper addresses the problem of preserving documents and artwork for long periods.

单词	Archival paper
释义	Archival paper 英语百科 Acid-free paper Acid-free paper is paper that if infused in water yields a neutral or basic pH (7 or slightly greater). It can be made from any cellulose fiber as long as the active acid pulp is eliminated during processing. It is also lignin- and sulfur-free. Acid-free paper addresses the problem of preserving documents and artwork for long periods.
随便看	electron diffraction technique的意思 electron diffractograph的意思 electron diffractometer的意思 electron diffusion coefficient的意思 electron diffusion constant的意思 electron diffusion length的意思 electron digital computer的意思 electron dipole moment的意思 electron discharge的意思 electrondischarge的意思 electron discharge machining的意思 electron displacement的意思 electron display tube的意思 electron distribution的意思 electron distribution curve的意思 electron donating的意思 Electron donating group的意思 electron donating solvent的意思 electron donative group的意思 electron doneracceptor complex的意思 electron doner acceptor complex的意思 electron donner的意思 Electron donor的意思 electron donor acceptor的意思 electron donoracceptor的意思

Archival paper

Acid-free paper