AKD wax introduction
Chemical name: Alkyl Ketene Dimer
Alias: AKD wax
AKD powder is also called AKD wax. Chemical name is Alkyl ketene dimer. CAS registration number is 144245-85-2. Appearance is pale yellow flake or granular solid. It is produced by fatty acid (C16), via acylation and dehydrochlorination to become AKD wax. AKD wax is mainly used for papermaking neutral sizing agent. R or R' in the above structural formula is the alkyl group, and a series of alkyl ketene dimers can be obtained through modifying different alkyl groups. Octodecane and cetane are applicable to the papermaking neutral sizing agent.
Alkyl ketene dimer is a white-to-yellow solid with the melting point of about 47 ~ 51 , which can be soluble in ethyl alcohol, benzene, chloroform and other organic solvents. The reactive group of alkyl ketene dimer-ketone group has high activity
and makes esterification reaction with the hydroxyl in cellulose.
Product Application
AKD wax can be made into AKD emulsion applied as in sizing agent in the papermaking production.
AKD wax is emulsified by the cationic emulsifier, and melted AKD wax and emulsifier undergo high-speed shearing and high pressure homogenization to form the liquid AKD sizing agent after cooled.
In the papermaking process, application of AKD sizing agent gives the fluid resistance to paper and paperboard to prevent or delay the penetration and diffusion of some liquids on paper fibers, thus satisfying people's requirements on the processing and use of paper products.
AKD contains hydrophobic group and hydrophilic group, which are well distributed in the sizing process to transfer to locate the process of bonding with cellulose. AKD emulsion particles stay between negatively charged paper fibers since they carry with
positive charge by virtue of cationic starch and PAM and other retention agents; In the pressing and drying process of the paper machine, these globular AKD particles are easily expanded and distributed on the surface of fibers due to the lower melting point to form a homogeneous cover film; When paper is dried and stored for a period, the active group (lactone ring) on AKD molecule makes the esterification reaction with the hydroxyl on fibers under certain conditions to be binding on fibers in the form of fixed covalent bonds. Hydrophobic long-chain alkyls transfer to the paper surface in order to give the penetration resistance to paper.
fuel such as:
Gasoil - from Euro II to Euro V
Fuel Oil- Various Viscosity from 600 CST till 180 CST
Vigin Fuel Oil â?? Mazut M100,CST 280, D6
Other Petroleum Cargo â?? Light Cycle Oil
LNG and LPG Gases
Crude Oil
Bitumen and Bitumen Mixture
Ethanol
PME Biodiesel
Naphtha
Methanol
Benzene
Butadiene
Para Xylene
Chartering of Vessels for Buyers and Clients.
Performance: White to off white powder. Slight soluble in water, more soluble boiling water, almost insoluble in alcohol, ether and benzene. Notable acid. Soluble caustic soda solution and sodium carbonate solution.
Applications: It is a good intermediate product for colorants(dyes, food colors, optical brightening agents). For example, acid orange II, sunset yellow, lemon yellow, reserving agent H, Aid B, Brightener BG and so on. It also is the material of flavor, medicine and building material.
Storage: In dry and airiness place, avoid moisture and deterioration.
Transportation: No knocked or broken, avoid rain.
Packing: Plastic bag lined woven bag, 25kg/bag. Or following your demand.
Acetone is the organic compound with the formula (CH3)2CO. This colorless, mobile, flammable liquid is the simplest example of the ketones. Owing to the fact that acetone is miscible with water it serves as an important solvent in its own right, typically as the solvent of choice for cleaning purposes in the laboratory. More than 3 million tonnes are produced annually, mainly as a precursor to polymers.[2] Familiar household uses of acetone are as the active ingredient in nail polish remover and as paint thinner and sanitary cleaner/nail polish remover base. It is a common building block in organic chemistry.
Acetone is naturally produced and disposed of in the human body as a result of normal metabolic processes. Reproductive toxicity tests show that it has low potential to cause reproductive problems. In fact, the body naturally increases the level of acetone in pregnant women, nursing mothers and children because their higher energy requirements lead to higher levels of acetone production. The medical community is now using ketogenic diets that increase acetone in the body to reduce epileptic attacks in infants and children who suffer from recalcitrant refractory epilepsy.
Acetone is produced directly or indirectly from propylene. Most commonly, in the cumene process, benzene is alkylated with propene and the resulting cumene (isopropylbenzene) is oxidized to give phenol and acetone:
C6H5CH(CH3)2 + O2 ¿ C6H5OH + (CH3)2CO
This conversion entails the intermediacy of cumene hydroperoxide, C6H5C(OOH)(CH3)2.
Acetone is also produced by the direct oxidation of propene with a Pd(II)/Cu(II) catalyst, akin to the Wacker process.
Product Description :
Yuhong SPU-301 one component polyurethane waterproofing coating is a kind of coating made by polymerization of isocyanate and polyether polyols, with addition of a variety of aids and fillers. It is applied on substrates to form a firm, soft, seamless sealing film by chemical reaction through, CNCO end group contacted with moisture in air.
Features;
It has one component which is easy to apply. The different types fits different applications.
It hasstrong adhesion, high strength and elongation, good elasticity, good high temperature and low temperature resistance, which make it fit to shrinkage and crack of substrates.
It has no benzene or coal tar, so it makes no pollution to environment.
Application Range;
It could be widely used in all kinds of moisture-resist and waterproofing projects, such as underground project, swimming pools, bathroom, balcony, parking lot and kitchen, as well as for non-exposed roof.
Construction Method;
Application Process: application preparation; substrate treatment and clean; additional waterproofing for details; application for roof; sealing of end joints and edge;application of protection or separation layers.
Substrate treatment: the substrate should be smooth, solid, clean, dry without sharp concave and convex, honeycomb, pocking marks, peeling free of bulge, greasy, apply sealant to concave around pipe root and do additional waterproofing layer in cracks.
Additional waterproofing layer: for details, such as concave and convex corners, pipe root, apply additional waterproofing layer, using type II to cracks, coat for 2;4 times(the thickness is about 1mm).
Apply waterproofing layer to roof deck: can coat for 2-3 times with scraper, but one coat is allowed too. When the first coat isnt sticky, can apply the second coat, the second coat should be vertical with the first coat. The batter coating rate is 2.0kg/m2for thickness of 1.5mm.
Description
Dimer acids (dimerized fatty acids) are dicarboxylic acids produced by dimerizing unsaturated fatty acids obtained from tall oil, oleic acid, canola oil or cottonseed oil, usually on clay catalysts. Dimer acids are light yellow transparent viscous liquids
Advantage
Non-toxic and harmless, no sulfur, no aromatics, no benzene, no heavy metals, easy degradation, no residue. It is an environmentally friendly green organic intermediate.
Technical index
Item Unit Specification SJ-A99
Appearance / Yellowish oily liquid Pass
Color(Fe-Co) Gardner 10max 7
Acid value MgKOH/g 190-202 196.2
Saponification value MgKOH/g 192-202 198.5
Viscosity Mm2/s 6600-7500 7400
Monnmer acid % 4 max 3.1
Dimer acid % 77-83 81.5
Trimer acid % 17max 15.4
phosphorus ppm 10max -
Iron ppm 1max -
Application
Dimer acids can be used to synthesize polyamide resins and hot melt adhesives. They are also used in alkyd resins, adhesives, surfactants, fuel oil additives and lubricants.
Package
1) 200L drums
2) 1000L IBC Tank
3) 24 CBM Flexitank
4) 25 CBM ISO Tank
Sega is one of the leading eco-friendly bio base materials manufacturers. Our Non-phthalate solvent, ethyl oleate usp and triacetin has high quality and competitive price.
For more information about environment-friendly plasticizer, please click here to visit our website.
Basic information:
Chinese name: accelerator TMTD, accelerators T, disulfide, bis (thiocarbonyl dimethylamine: N, N- tetramethyl disulfide amine carbonyl disulfide, tetramethylthiuram disulfide, thiram, vulcanization accelerator TMTD , dithio tetramethyl thiuram rubber accelerator TMTD, N, N'- tetramethyl-dithiobis thiocarbonyl amine, the T accelerator, accelerator TMTD-II, accelerator TT, disulfide bis (thio carbonyl dimethylamine), tetramethyl disulfide, thiuram, Sail scattered four methylthio peroxydicarbonate diamide, tetramethylthiuram disulfide, tetramethyl thiuram disulfide
Physical and Chemical Properties:
Appearance Properties: white or gray, with special smell, crystalline powder.
Solubility: soluble in toluene, acetone, dichloroethane, carbon disulfide, ethanol, slightly soluble in ethanol, insoluble in water, soluble in dilute alkali, gasoline, soluble in alcohol, benzene, chloroform, carbon disulfide.
Stability: does not absorb moisture. Dust can form explosive mixtures with air.
Toxicity: a certain toxicity, LD50 865mg / kg, have a stimulating effect on the skin, respiratory tract, avoid inhalation of dust and contact with skin and eyes.
A600VÂ Intrinsic safety marine radio
Ocean one Walkie Talkie
Marine Walkie Talkie
Intrinsically safe radio,Marine radio,Marine handheld radio
II 2G Ex ib IIB T4 Gb Explosion levels
EU ATEX intrinsically safe certification
Passed CE, FCC, RoHS certification
Float & IP68 waterproof rating
Marine handheld radio
VHF 156-163.425MHz
A600V Intrinsic safety radio  complies with GB3836.1-2010 "Explosive environment Part 1: General requirements for equipment" and GB3836.4-2010 "Explosive environment Part 4: Intrinsically safe "i" protected equipment" standard, through ATEX II 2G Ex Ib IIB T4 is intrinsically safe and meets the requirements of explosion-proof environment. It is suitable for Zone 1 and Zone 2, T1-T4 explosive gas mixture sites containing IIA-IIB.
IIA IIB IIC
T1(450) Methane, toluene, methyl
ester,Ethane, propane,
acetone,Acrylic, benzene,
styrene,Carbon monoxide,
ethyl acetate,Acetic acid,
chlorobenzene,methyl
acetate,ammonia Propylene,
propylene Clear,
dimethyl ether,
Hydrogen cyanide,
City gas Hydrogen,
water gas
T2(300) Methanol, ethanol,
ethylbenzene,
Propyl alcohol, propylene,
butanol,Butane, butyl
acetate,Amyl acetate,
cyclopentane Butadiene, ring
Ethoxyethane,
B Ene, furan Acetylene
T3(200) Pentane, pentanol, hexane,
Hexanol, heptane, octane,
Ethanol, turpentine,
Naphtha, petroleum
(including steam Oil),
fuel oil,Pentanol
tetrachloromethane Dimethyl ether,
propylene Aldehyde,
hydrogen sulfide
T4(135) Acetaldehyde,
trimethylamine Dibutyl ether, two
Ether, ethyl methyl,
Tetrafluoroethylene Carbon disulfide
T5(100) Ethyl nitrate
T6(85) Ethyl nitrite
A600V is a waterproof and Intrinsic safety radio.The A600V can be floated when fell into water and waterproof to IP68,can be more than 1 meter depth in water for 1 hour.
A600DUÂ Marine intrinsically safe digital radio
Ocean one Walkie Talkie
Marine Walkie Talkie
Intrinsically safe Marine Radio,Marine radio
II 2G Ex ib IIB T4 Gb Explosion levels
EU ATEX intrinsically safe certification
Passed CE, FCC, RoHS certification
Digital intercom / analog intercom dual-use compatible
Marine handheld radio
UHF 400-470MHz
The A600DU is an explosion-proof digital walkie-talkie. It is compatible with digital intercom and analog intercom. It has passed the ATEX II 2G Ex ib IIB T4 intrinsic safety certification of the European Union and meets the requirements of explosion-proof environment. It is suitable for Zone 1 and Zone 2 with IIA-IIB. T1-T4 explosive gas mixture site.
Â
IIA IIB IIC
T1(450) Methane, toluene, methyl
ester,Ethane, propane,
acetone,Acrylic, benzene,
styrene,Carbon monoxide,
ethyl acetate,Acetic acid,
chlorobenzene,methyl
acetate,ammonia Propylene,
propylene Clear,
dimethyl ether,
Hydrogen cyanide,
City gas Hydrogen,
water gas
T2(300) Methanol, ethanol,
ethylbenzene,
Propyl alcohol, propylene,
butanol,Butane, butyl
acetate,Amyl acetate,
cyclopentane Butadiene, ring
Ethoxyethane,
B Ene, furan Acetylene
T3(200) Pentane, pentanol, hexane,
Hexanol, heptane, octane,
Ethanol, turpentine,
Naphtha, petroleum
(including steam Oil),
fuel oil,Pentanol
tetrachloromethane Dimethyl ether,
propylene Aldehyde,
hydrogen sulfide
T4(135) Acetaldehyde,
trimethylamine Dibutyl ether, two
Ether, ethyl methyl,
Tetrafluoroethylene Carbon disulfide
T5(100) Ethyl nitrate
T6(85) Ethyl nitrite
Â
Intrinsic safety marine radio adopts a new optimized intrinsic safety design. The battery adopts dual output current limiting protection and short circuit protection. The whole structure design is compact and reliable,with safe and reliable intrinsic safety performance, and is the ideal professional communication transceiver in hazardous gas working environment.
A300V Intrinsic safety marine radio
Ocean one Walkie Talkie
Marine Walkie Talkie
Marine radio,Intrinsically safe Marine Radio
Ex ib IIB T4 Gb explosion-proof levels
Intrinsic safety certification
Float & IP68 waterproof rating
Marine handheld radio
VHF 156-163.425MHz
A300V Intrinsic safety radio  complies with GB3836.1-2010 "Explosive environment Part 1: General requirements for equipment" and GB3836.4-2010 "Explosive environment Part 4: Intrinsically safe "i" protected equipment" standard, through ATEX II 2G Ex Ib IIB T4 is intrinsically safe and meets the requirements of explosion-proof environment. It is suitable for Zone 1 and Zone 2, T1-T4 explosive gas mixture sites containing IIA-IIB.
IIA IIB IIC
T1(450) Methane, toluene, methyl
ester,Ethane, propane,
acetone,Acrylic, benzene,
styrene,Carbon monoxide,
ethyl acetate,Acetic acid,
chlorobenzene,methyl
acetate,ammonia Propylene,
propylene Clear,
dimethyl ether,
Hydrogen cyanide,
City gas Hydrogen,
water gas
T2(300) Methanol, ethanol,
ethylbenzene,
Propyl alcohol, propylene,
butanol,Butane, butyl
acetate,Amyl acetate,
cyclopentane Butadiene, ring
Ethoxyethane,
B Ene, furan Acetylene
T3(200) Pentane, pentanol, hexane,
Hexanol, heptane, octane,
Ethanol, turpentine,
Naphtha, petroleum
(including steam Oil),
fuel oil,Pentanol
tetrachloromethane Dimethyl ether,
propylene Aldehyde,
hydrogen sulfide
T4(135) Acetaldehyde,
trimethylamine Dibutyl ether, two
Ether, ethyl methyl,
Tetrafluoroethylene Carbon disulfide
T5(100) Ethyl nitrate
T6(85) Ethyl nitrite
A300V is a waterproof and Intrinsic safety radio.The A600V can be floated when fell into water and waterproof to IP68,can be more than 1 meter depth in water for 1 hour.
Â
Intrinsic safety marine radio adopts a new optimized intrinsic safety design. The battery adopts dual output current limiting protection and short circuit protection. The whole structure design is compact and reliable,with safe and reliable intrinsic safety performance, and is the ideal professional communication transceiver in hazardous gas working environment.
Chemical name:carbonyldihydridotris(triphenylphosphine)ruthenium(ii)
Synonyms:dihydridocarbonyltris(triphenylphosphine)ruthenium
Cas number:25360-32-1
Molecular formula: [(c6h5)3p]3ru(co)h2
Molecular weight:919.79
62 Dichloro(Benzene)Ruthenium(Ii) Dimer Suppliers
Short on time? Let Dichloro(Benzene)Ruthenium(Ii) Dimer sellers contact you.
