30 results about "SODIUM OCTYL SULFATE" patented technology

There is described a topical formulation. The topical formulation comprises: (i) diclofenac or a pharmaceutically acceptable salt thereof, (ii) a first compound, and (iii) a second compound. The first compound and second compound are different, and each is selected from the group consisting essentially of N-lauroyl sarcosine, sodium octyl sulfate, methyl laurate, isopropyl myristate, oleic acid, glyceryl oleate and sodium lauryl sulfoacetate. It has been discovered that certain combination of compounds are excellent penetration enhancers and, as such, can be incorporated in a topical formulation to facilitate administration of diclofenac or a pharmaceutically acceptable salt thereof. The increased penetration enhancement can also lead to a reduction in the total concentration of skin irritants in the formulation.

The invention relates to a method for preparing a composite hydrate accelerant. The composite accelerant is characterized by being prepared by mixing cyclopentane or methyl cyclohexane serving as a kinetic accelerant and 2-butyl octyl sodium sulfate serving as a surfactant, wherein the percentage by mass of the cyclopentane or methyl cyclohexane in a solvent is 1.3 to 15.0, and the concentration of the surfactant 2-butyl octyl sodium sulfate in the solvent is 0.32*10<-3> to 9.5*10<-3> mol / L; and 0.02 to 0.78 mass percent of sodium chloride is added into the mixture. In the method, a high-pressure gas cylinder is taken as a gas source, a pressure is properly adjusted through a pressure adjustment valve, consumed gas is metered by a mass flow meter, a temperature and the pressure in a reactor are monitored by pressure and temperature transducers, and the temperature of liquid in a water tank is controlled by means of a thermostatic water bath, so that the temperature in the reactor is adjusted; and data is acquired by a data acquisition system and a computer, and the forming condition of a hydrate in the reactor is monitored by a photoelectric lens. The method for preparing the composite hydrate accelerant not only can reduce the forming condition of the hydrate, but also can shorten the formation time of the hydrate and improve the gas storage capacity of the hydrate.

The invention relates to a neutral environmentally-friendly water-based fire extinguishing agent and a preparation method thereof. The neutral environmentally-friendly water-based fire extinguishing agent comprises water, a first fire extinguishing component, a second fire extinguishing component, citric acid and a water-soluble surfactant component, wherein the first fire extinguishing component comprises two or more of such inorganic compounds as ammonium dihydrogen phosphate, urea, potassium carbonate and ammonium monohydric phosphate; the second fire extinguishing component comprises one or more of potassium sulfate, potassium bicarbonate, sodium phosphate, organic acid and potassium acetate; and the water-soluble surfactant component comprises two or more of sodium lauryl sulfate, hexadecyl trimethyl ammonium chloride, perfluorooctane surfapropyl betaine, sodium octyl sulfate and sodium decyl sulfate. The preparation method comprises the following steps: adding water into a stirring machine, and sequentially adding all the components while stirring, so as to obtain a product finally. The finally prepared neutral environmentally-friendly water-based fire extinguishing agent can be applied to A-class, B-class and F-class fire disasters, and has the advantages that the corrosion problem can be solved without adding an antirust agent; the low-temperature (minus 25 DEG C) problem can be solved without adding an anti-freezing agent; and the environmentally-friendly effect can be achieved.