cas 1592-23-0, Calcium stearate | Articles data

Articles about 1592-23-0Total 14 be found

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Dissolution of soap scum by surfactant part I: Effects of chelant and type of soap scum
The equilibrium solubilities of two model soap scums [calcium stearate and magnesium stearate: Ca(C18)2 and Mg(C18) 2] were measured in aqueous solutions containing three different types of surfactants: methyl ester sulfonate (MES) as an anionic; alcohol ethoxylate (EO9) as a nonionic; and dimethyldodecylamine oxide (DDAO) as an amphoteric with and without a chelating agent [disodium ethylenediaminetetraacetate (Na2EDTA)]. The solubility of calcium soap scum was generally higher than that of magnesium soap scum, the exception being some DDAO systems. The use of the DDAO surfactant with the Na 2EDTA chelating agent at high pH gives the highest solubilities of both studied soap scums. The soap scum solubility is on the order of 2,000 times that in water at high pH. The DDAO is the most effective surfactant under all conditions. The MES is more effective than the EO9 at low pH with the opposite trend observed at high pH. The synergism from added chelant is generally greater at higher pH and is greatest for DDAO followed by EO9.
Itsadanont, Sawwalak,Scamehorn, John F.,Soontravanich, Sukhwan,Sabatini, David A.,Chavadej, Sumaeth
p. 849 - 857
(2014)
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Dissolution study of salt of long chain fatty acids (Soap Scum) in surfactant solutions. Part I: Equilibrium dissolution
Dissolution of calcium salt of a long chain fatty acid or soap scum is a major challenge for hard surface cleaners since soap scum forms when soap is exposed to hard water and has very low water solubility. In this paper, the aqueous equilibrium solubility of calcium octadecanoate (or calcium stearate) was measured as a function of pH as well as chelating agent (ethylenediaminetetraacetate disodium salt) and surfactant concentrations. Anionic, nonionic, and amphoteric surfactants were studied. The highest soap scum solubility was observed at high pH with an amphoteric surfactant. Under this condition, the chelant effectively binds calcium, and the stearate anion forms mixed micelles well with the amphoteric surfactant, which is in zwitterionic form at high pH. AOCS 2010.
Soontravanich, Sukhwan,Lopez, Heyde E.,Scamehorn, John F.,Sabatini, David A.,Scheuing, David R.
p. 367 - 372
(2010)
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Continuous preparation method of metal fatty acid salt
The invention relates to a continuous preparation method of metal fatty acid salt. The continuous preparation method of the metal fatty acid salt comprises the step of continuously enabling fatty acidand metal hydroxides to react in a solvent and prepare the metal fatty acid salt in a microchannel reactor or pipeline reactor. The preparation method disclosed by the invention can control the particle diameter of a product material to be within 70nm and 1000nm, and the particle diameter of the product material can be adjusted as needed; the metal fatty acid salt is simple in preparation method,short in technological process, few in three wastes (waste water, waste residues and waste gas), beneficial to environmental protection and suitable for industrial production; the reactor used in theinvention has short reaction time, high safety, high efficiency and large productivity, and can realize continuous production, furthermore, the space utilization rate of workshops is high, and mass production can be realized; by adopting the preparation method disclosed by the invention, the solvent can be recycled to lower the production cost; and the preparation method has high conversion rateof raw materials, stable quality and high purity.
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Paragraph 0080; 0081; 0082; 0083

(2019/04/04)

Granular calcium stearate production method and apparatus
The invention belongs to the technical field of chemical industry, and discloses a production method and equipment of granular calcium stearate. The method comprises the following steps: carrying out reaction on stearic acid and calcium hydroxide under a heating condition to prepare calcium stearate; and then pelleting through an improved pelletizer, so as to obtain calcium stearate grains, wherein a feeding hole of the pelletizer is formed in the rear half part of a charging barrel; a one-way air outlet for discharging water vapor is formed in the rear part of the feeding hole; the pelletizer adopts thermal oil to heat and carry out heat preservation; and the flow direction of the thermal oil is consistent with the material pushing direction in the charging barrel. Through the process control, calcium stearate pelleting is achieved, and the granular calcium stearate is low in breakage rate, low in moisture content and high in packing density.
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Paragraph 0055-0059

(2017/06/24)

Characterisation of metal carboxylates by Raman and infrared spectroscopy in works of art
This work introduces the complementary use of μ-Raman and μ-Fourier transform infrared (IR) spectroscopy for the detection of specific carbon chains and cations for the identification of metal carboxylates within oil paint microsamples. Metal carboxylates (metal soaps) form naturally when free fatty acids react with metal cations and may also be found as additives or degradation products. Twenty-two metal carboxylates were synthesised, and their spectra assembled in a reference database. Metal salts of cations commonly present in oil paintings were used, including lead, zinc, calcium, cadmium, copper and manganese. The fatty acids selected were the saturated acids palmitic (C1 6:0) and stearic (C18:0) and the polyunsaturated oleic acid (C1 8:1). Azelaic acid (C9 diacid), a product resulting from autoxidation of polyunsaturated acids, was also included. Metal carboxylates were characterised by Raman and IR spectroscopy, and their structures were confirmed by X-ray diffraction. Raman and IR spectroscopy proved to be complementary techniques for a full identification of the metal carboxylates in complex aged paint. Raman enables the differentiation of the carbon chain length in the C-C stretching region (1120-1040 cm-1), and IR distinguishes the metal cation in the COO- stretching absorption region (1650-1380cm-1). Principal component analysis was applied to the spectra in order to facilitate a fast and accurate method to discriminate between the different metal carboxylates and to aide in their identification. Finally, spectra from case studies were successfully projected in the principal component analysis models built, enabling a higher confidence level for the identification of copper palmitate and copper azelate in two 19th-century Portuguese oil paintings.
Otero, Vanessa,Sanches, Diogo,Montagner, Cristina,Vilarigues, Mrcia,Carlyle, Leslie,Lopes, Joo A.,Melo, Maria J.
p. 1197 - 1206
(2015/02/19)

A GLYCEROL DERIVED MATERIAL
A method of producing a solid glycerol derived material includes the steps of combining glycerol with a metal oxide, the glycerol having a water content of between about 5 and 50%, and the rate of combination of the glycerol and the metal oxide and the amount of the metal oxide being selected so that at least part of the water present in the glycerol reacts with the metal oxide in an exothermic reaction and at least part is driven off by heat produced in the exothermic reaction to produce the solid glycerol derived material.
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Page/Page column 55 - 56

(2010/04/03)

METHOD FOR INHIBITING PITCH TROUBLES
The invention provides a pitch-controlling agent comprising 100 parts by weight of a zinc salt of a higher fatty acid and from 1 to 20 parts by weight of a cationic surfactant. The invention further provides a method for preventing pitch trouble which comprises adding the pitch-controlling agent to pulp slurry.
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(2008/06/13)

Manganese-containing antibiotic agents
Manganese complexes of various monovalent and divalent polyether antibiotics are provided which act as coccidiostats and growth promoting agents when administered to food-producing animals such as cattle, sheep, swine and poultry. Soluble manganese salt is added to a fermentation beer containing the polyether antibiotics to form an insoluble, recoverable biomass containing the desired manganese antibiotic complex. This biomass, in a dried form, can be given orally to animals such as cattle, sheep, swine and poultry. The subject manganese complexes include: linear monovalent and divalent polyethers (monensin, nigericin, lasalocid, lysocellin, etc.); non-glycolic monovalent monoglycoside polyethers (septamycin, dianemycin, lenoremycin, carriomycin and antibiotic A-204); mononitrogen-containing divalent pyrrole ethers (calcimycin, X-14547, etc.); polynitrogen-containing divalent pyrrole ethers (A-23187, etc.); glycolic monovalent monoglycoside polyethers (etheromycin, etc.); other polyether antibiotics including ionomycin, aabomycin, disnerycin, duamycin, BL-580, K-41, SF-1195, M-4164A, A-32887, 30,504RP, 38,986, 44,161, 47,433, 47,434 and 47,224. The above manganese complexes are also active agents for improving cardiovascular function in animals. Purified manganese-containing antibiotic complexes can be extracted from the biomass using suitable organic solvents, followed by crystallization or precipitation of the purified complexes. The purified products can be administered as boluses, subcutaneous implants, or as injectable preparations.
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(2008/06/13)

Lincomycin nucleotides
Novel and useful ribonucleotides of analogs of the well known antibiotics lincomycin and clindamycin. These ribonucleotides are unexpectedly highly active against Streptococcus hemolyticus and Staphylococcus aureus in vivo.
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(2008/06/13)

4-Amino-cyclohexanols, their pharmaceutical compositions and methods of use
Novel 4-aminocyclohexanols are formulated into pharmaceutical compositions for analgetic purposes in mammals in need of said treatment.
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(2008/06/13)

Antimony mercaptides as processing stabilizers for vinyl halide resins
Novel compositions and use therefore as stabilizers during the production of vinyl halide resins are disclosed which comprise antimony mercaptides having the general formula: STR1 wherein K is 1 to 4; L is 0 to 1; M is 1 to 4; N is 1 to 4; X is oxygen or sulfur; and R is an alkyl, alkenyl, alkynyl having 1 to 18 carbon atoms and combinations thereof. Such compositions when used during vinyl halide resin processing retard discoloration and mechanical degradation at least as effectively as previously known antimony mercaptides while being more economical to produce.
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(2008/06/13)

Analgesic N-{2-[N'-(2-furylmethyl and 2-thienyl-methyl)-N'-alkylamino]cycloaliphatic}cyanobenzamides
Cis- and trans-N-(2-aminocycloaliphatic)benzamide compounds of the formula STR1 e.g., N-methyl-N-[2-(N-pyrrolidinyl)cyclohexyl]-3,4-dichlorobenzamide, and their pharmaceutically acceptable salts, have been found to have potent analgesic activity, and compositions containing these compounds useful in pharmaceutical dosage unit form for alleviating pain in warm blooded animals, as well as methods for alleviating pain in animals with these compositions. Processes for preparing the compounds are also disclosed.
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(2008/06/13)

Metronidazole phosphate and salts
This invention relates to novel compounds of the formula: STR1 wherein X≈ is a pharmacologically acceptable cation. The compounds are water soluble and are compounded with pharmaceutical carriers to form compositions which are useful as medical treatment for those conditions for which metronidazole is useful in treating.
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(2008/06/13)

Analgetic compounds, compositions and process of treatment
Novel compounds of the formula: STR1 wherein R1 is a variable consisting of hydrogen, alkyl of from 1 to 8 carbon atoms, CH2 -alkenyl wherein alkenyl is from 2 to 4 carbon atoms, inclusive, cycloalkyl of from 3 to 6 carbon atoms, inclusive, cycloalkylmethyl of from 3 to 6 carbon atoms, inclusive; R2 is a variable consisting of hydrogen, alkyl of from 1 to 8 carbon atoms, inclusive, with the proviso that R1 and R2 cannot both be hydrogen at the same time; Y is a variable consisting of alkyl of from 1 to 4 carbon atoms, inclusive, halogen, trifluoromethyl, hydroxy, alkanoyloxy from 2 to 5 carbon atoms, inclusive, alkoxy of from 1 to 4 carbon atoms, inclusive, cycloalkyloxy of from 3 to 6 carbon atoms, inclusive, benzyloxy; m is an integer 0, 1, 2; R5 is a variable consisting of hydrogen and alkyl of from 1 to 4 carbon atoms, inclusive; R3 is a variable consisting of alkyl of from 1 to 4 carbon atoms, inclusive; R4 is a variable consisting of alkyl of from 1 to 4 carbon atoms, inclusive, CH2 -alkenyl wherein alkenyl is of from 2 to 4 carbon atoms, inclusive, and arylalkyl wherein alkyl is from 1 to 4 carbon atoms, inclusive, and aryl is STR2 WHEREIN Y' is CF3, halogen, alkyl of 1 to 4 carbon atoms, inclusive, and alkoxy of from 1 to 4 carbon atoms, inclusive; and R3 and R4 when taken together with the nitrogen atom to which they are attached can form saturated heterocycles of from 5 to 7 ring members, a second hetero atom of said ring can be oxygen or nitrogen, e.g., morpholine, piperazine, and said heterocycles can be monosubstituted having a total of up to 9 carbon atoms, with the proviso that when STR3 is pyrrolidinyl, then m = 1, 2, having analgetic activity in humans and animals are prepared in unit dosage forms. The compositions are useful in relieving pain by administering orally, parenterally, and rectally to humans and animals.
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(2008/06/13)

Chemical Properties

Appearance/Colour :white solid
Melting Point: 147-149 °C
Boiling Point: 359.4 °C at 760 mmHg
Flash Point:162.4 °C
Density: 1.08 g/cm³
Solubility:Soluble in hot pyridine, slightly soluble in oil, but insoluble
Storage Temp.:Store at +5°C to +30°C.
Vapor Pressure: 0Pa at 25℃
Merck: 14,1703
BRN: 3919698
PSA: 52.60000
LogP: 12.51080

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1592-23-0

Articles about 1592-23-0Total 14 be found

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Chemical Properties

Appearance/Colour :white solid

Melting Point: 147-149 °C

Boiling Point: 359.4 °C at 760 mmHg

Flash Point:162.4 °C

Density: 1.08 g/cm³

Solubility:Soluble in hot pyridine, slightly soluble in oil, but insoluble

Storage Temp.:Store at +5°C to +30°C.

Vapor Pressure: 0Pa at 25℃

Merck: 14,1703

BRN: 3919698

PSA: 52.60000

LogP: 12.51080

Global suppliers and manufacturers of 1592-23-0total 384 suppliers on LookChem

Article Database

1592-23-0

Articles about 1592-23-0Total 14 be found

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Chemical Properties

Appearance/Colour :white solid

Melting Point: 147-149 °C

Boiling Point: 359.4 °C at 760 mmHg

Flash Point:162.4 °C

Density: 1.08 g/cm3

Solubility:Soluble in hot pyridine, slightly soluble in oil, but insoluble

Storage Temp.:Store at +5°C to +30°C.

Vapor Pressure: 0Pa at 25℃

Merck: 14,1703

BRN: 3919698

PSA: 52.60000

LogP: 12.51080

Global suppliers and manufacturers of 1592-23-0total 384 suppliers on LookChem

Density: 1.08 g/cm³