A high-purity organic acid salt containing no sugar is produced by heating a mixture of organic acid salt and saccharide, contacting the heated mixture with alcohol, and then separating the organic acid salt from the heated saccharide. ; an ultra-homogenizer 3 through which fluid at temperature Tp is introduced at a pressure Pu between 200 and 600 MPa increasing its temperature up to a final value Tu. A rotor blade of a wind power installation, wherein the rotor blade has a thickness reserve approximately in the range of between 15% and 40%, preferably in the range of between about 23% and 28%, and wherein the greatest profile thickness is between about 20% and 45%, preferably between about 32% and 36%. The uninterruptible power supply memory is powered with a battery, thus it can store the data of a command in executing during shutdown. Each indicium denotes an alphabetic letter or a number and in one embodiment is a Braille character.