Abstract: This invention pertains generally to the field of chemical synthesis and purification, and more specifically to methods of synthesizing and purifying certain 3,7 diamino-phenothiazin-5-ium compounds (referred to herein as “diaminophenothiaziniumcompounds”) including Methythioninium Chloride (MTC) (also known as Methylene Blue). In one embodiment, the method comprises the steps of, in order: nitrosylation (NOS); nitrosyl reduction (NR); thiosulfonic acid formation (TSAF); oxidative coupling (OC); Cr(VI) reduction (CR); isolation and purification of zwitterionic intermediate (IAPOZI); ring closure (RC); chloride salt-formation (CSF); one of: sulphide treatment (ST); dimethyldithiocarbamate treatment (DT); carbonate treatment (CT); ethylenediaminetetraacetic acid treatment (EDTAT); organic extraction (OE); and recrystallisation (RX). The present invention also pertains to the resulting (high purity) compounds, compositions comprising them (e.g.

Abstract: A communication system comprises a sending device, a receiving device and a network which connects the sending device to the receiving device. The sending device comprises at least one user operable input for entering a sequence of textual characters. as a message and transmission means for sending the message across the network. The receiving device comprises a memory which stores a plurality of head images, each one being associated with a different sending device and comprising an image of a head viewed from the front, receiver means for receiving the message comprising the sequence of textual characters, text to speech converting means for converting the text characters of the message into an audio message corresponding to the sequence of text characters and animating means for generating an animated partial 3D image of a head from the head image stored in the memory which is associated with the sender of the message.

Abstract: A system and method for creating and utilizing an electronic construction punch list. A touch screen displaying a virtual floor plan is utilized to input and detail punch list items. The punch list information can then be transmitted to a contractor who uses the system to locate and address punch list items pursuant to the associated detail.

Abstract: A method to reduce NOx, emissions from diesel fuel alcohol microemulsions (E-diesel) is taught. Ethanol is stripped from the microemulsion and entered into the exhaust gasses upstream of the reducing catalyst. The method allows diesel engines to meet new, lower emission standards without having to carry separate fuel and reductant tanks.

Abstract: A method for managing the temperature of an E-diesel catalyst by distilling out a portion of the ethanol, injecting the distilled ethanol into exhaust gasses upstream of the catalyst, reacting the distilled ethanol with excess oxygen in the exhaust gasses to produce heat, and controlling the ethanol injection using various engine parameters.

Abstract: This invention pertains generally to the field of chemical synthesis and purification, and more specifically to methods of synthesizing and purifying certain 3,7-diaminophenothiazin-5-ium compounds (referred to herein as “diaminophenothiazinium compounds”) including Methythioninium Chloride (MTC) (also known as Methylene Blue). In one embodiment, the method comprises the steps of, in order: nitrosylation (NOS); nitrosyl reduction (NR); thiosulfonic acid formation (TSAF); oxidative coupling (OC); Cr(VI) reduction (CR); isolation and purification of zwitterionic intermediate (IAPOZI); ring closure (RC); chloride salt formation (CSF); one of: sulphide treatment (ST); dimethyldithiocarbamate treatment (DT); carbonate treatment (CT); ethylenediaminetetraacetic acid treatment (EDTAT); organic extraction (OE); and recrystallisation (RX). The present invention also pertains to the resulting (high purity) compounds, compositions comprising them (e.g.

Abstract: The present invention provides an aqueous liquid bleaching composition having a pH-value of less than or equal to 7 and comprising surfactant material including ethoxylated nonionic surfactant having on average more than 7 ethylene oxide groups, a bleach catalyst and an antifoam system containing fatty acid having an iodine value lower than 1.0.

Abstract: The present invention provides an aqueous liquid bleaching composition having a pH-value of less than or equal to 7 and comprising surfactant material, a bleach catalyst and an antifoam system containing fatty acid having an iodine value lower than 1.0 and a neutralising agent selected from the group consisting of a substituted amine with a C1 or C2 substitution and tetraalkyl ammoniumhydroxide having a C1-C4 alkyl group.