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advertisements
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| Category |
Title |
Grade |
# views |
Added |
Pic. |
| Chemical |
 sell caustic soda
Fob Tianjin 280$/T |
0 (#0) |
100 |
2010.09.08 |
 |
| Chemical |
ammonium persulfate
Name : Ammonium persulfate
Molecular formula: (NH4)2S2O8
Molecular weight: 228.20
Characteristics:
Ammonium persulfate is a white, crystalline, odourless salt. It is used as initiator for the polymerization of monomers and as a strong oxidizing agent in many application. It has the particular advantage of being almost nonhygroscopic, of having a particularly good storage of stability as a result of its extremely high purity and of being easy and safe to handle.
Specification:
Assay 98.5%MIN
Active oxygen 6.91% MIN
Residue after ignition0.02% MAX
Chloride and chlorate 0.001% MAX
Heavy metals 0.0005%MAX
Iron 0.0005% MAX
Manganese 0.00005% MAX
Moisture 0.10% MAX
Application:
APS is a suitable initiator for the emulsion or solution polymerization of acrylic monomer, vinyl acetate, vinyl acetate, vinyl chloride etc. and for the emulsion copolymerisation of styrene, acrylonitrile, butadiene etc.. Aps is also a kind of oxidizing agent:
(1) Used in cleaning and picking of metal surface.
(2) Used in accelerated curing of low formaldehyde adhesives.
(3)Used in modification of starch , production of binders and coating materials.
(4) Desizing agent and bleach activer
(5) An essential component of bleaching formulations for hair cosmetics.
Package:
(1)25Kg net weight paper bag with one PE line
(2) 25Kg net weight PE bag
(3) 25Kg net weight woven bag with two PE liner
(4) 25Kg net weight paper bag with one PE line
(5) 1000Kg net weight fiber drum with one PE liner
(6) 25Kg net PE bag and 25Kg net cartons
If you are interested in the products above mentioned, you can contact us freely. Your kind attention would be much appreciated.
Penny Zhang
TEL: ++86-15130896017
FAX:++86-318-2147805
E-mail: zhangyongping.love (at)163(.)com
zhangyongping(at)jihenggroup(.)com
MSN:hszhangyongping?iat?jhotmail?i.?jcom
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0 (#0) |
88 |
2010.08.10 |
 |
| Chemical |
4-Oxo-TEMPO, free radical CAS No 2896-70-0
As a professional manufacturer of retarders, since 2010, we have commercially supplied 4-OXO-TEMPO. The appearance is orange-red crystal and assay is 98.5% min. |
0 (#0) |
73 |
2010.06.19 |
|
| Chemical |
glacial acetic acid
worldwide |
0 (#0) |
63 |
2010.06.14 |
|
| Chemical |
formic acid
worldwide |
0 (#0) |
66 |
2010.06.14 |
|
| Chemical |
oxalic acid
worldwide |
0 (#0) |
53 |
2010.06.14 |
|
| Chemical |
sodium tripolyphosphate
worldwide |
0 (#0) |
63 |
2010.06.14 |
|
| Chemical |
sodium hexametaphosphate
worldwide |
0 (#0) |
55 |
2010.06.14 |
|
| Chemical |
caustic soda flakes
worldwide |
0 (#0) |
59 |
2010.06.14 |
|
| Chemical |
solid caustic soda
worldwide |
0 (#0) |
58 |
2010.06.14 |
|
| Chemical |
sell oxalic acid
Sodium Hexametaphosphate, (SHMP), Lithopone,
Sodium Tripolyphosphate, (STPP) Formic Acid, Oxalic Acid,
Glacial Acetic Acid, Stearic Acid, Carbon Black, Iron Oxide
Titanium Dioxide, Chrome Green Oxide, Zinc Oxide,
Titanium oxide , Calcium hypochlorite
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0 (#0) |
76 |
2010.06.09 |
|
| Chemical |
sell formic acid
Sodium Hexametaphosphate, (SHMP), Lithopone,
Sodium Tripolyphosphate, (STPP) Formic Acid, Oxalic Acid,
Glacial Acetic Acid, Stearic Acid, Carbon Black, Iron Oxide
Titanium Dioxide, Chrome Green Oxide, Zinc Oxide,
Titanium oxide , Calcium hypochlorite
|
0 (#0) |
69 |
2010.06.09 |
|
| Chemical |
Sell zinc oxide
Sodium Hexametaphosphate, (SHMP), Lithopone,
Sodium Tripolyphosphate, (STPP) Formic Acid, Oxalic Acid,
Glacial Acetic Acid, Stearic Acid, Carbon Black, Iron Oxide
Titanium Dioxide, Chrome Green Oxide, Zinc Oxide,
Titanium oxide , Calcium hypochlorite
|
0 (#0) |
67 |
2010.06.09 |
|
| Chemical |
sell stearic acid
Sodium Hexametaphosphate, (SHMP), Lithopone,
Sodium Tripolyphosphate, (STPP) Formic Acid, Oxalic Acid,
Glacial Acetic Acid, Stearic Acid, Carbon Black, Iron Oxide
Titanium Dioxide, Chrome Green Oxide, Zinc Oxide,
Titanium oxide , Calcium hypochlorite
|
0 (#0) |
66 |
2010.06.09 |
|
| Chemical |
Sell caustis soda flakes
Sodium Hexametaphosphate, (SHMP), Lithopone,
Sodium Tripolyphosphate, (STPP) Formic Acid, Oxalic Acid,
Glacial Acetic Acid, Stearic Acid, Carbon Black, Iron Oxide
Titanium Dioxide, Chrome Green Oxide, Zinc Oxide,
Titanium oxide , Calcium hypochlorite
|
0 (#0) |
69 |
2010.06.09 |
|
| Chemical |
sell Titanium dioxide
Sodium Hexametaphosphate, (SHMP), Lithopone,
Sodium Tripolyphosphate, (STPP) Formic Acid, Oxalic Acid,
Glacial Acetic Acid, Stearic Acid, Carbon Black, Iron Oxide
Titanium Dioxide, Chrome Green Oxide, Zinc Oxide,
Titanium oxide , Calcium hypochlorite
|
0 (#0) |
52 |
2010.06.09 |
|
| Chemical |
long term supply chemicals
Chrome green oxide
Lithopone
Shmp
Carbon Black
Acetic Acid
Stearic acid,
Iron Oxide Red
Solid caustic soda
Caustic soda flakes
Stpp
Oxalic acid
Formic acid
Acetic acid
Titanium oxide
Iron oxide
Zinc oxide
Calcium hypochlorite.
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0 (#0) |
52 |
2010.06.08 |
|
| Chemical |
BCDMH
1-bromo-3-chloro-5, 5-dimethyl hydantoin(BCDMH):1-bromo-3-chloro-5, 5-dimethyl hydantoin(BCDMH)
Formula: C5H6BrClN2O2
Appearance:white or white-like crystal powder,granular,tablet.
Usage:It is streamlined oxidant type disinfecting agent, including Bromo and Chloro's advantage, with high stabilization, light odor, slow release, long efficient, can be widely used:
1. Sterilization for swimming pool and tap water
2. Sterilization for aquaculture
3. Water treatment chemicals
4. Sterilization of environment for hotel, hospital and other public places.
Packing: non poisonous plastic sealed bag for inside , and paple-plastic multiple bag or cardboard barrel for outside. 25Kg or 50Kg net each or by customer's requirement.
Quality Standard:
Standard Q/QYG-04-2001
Items Index
Appearance white or white-like crystal powder,granular,tablet.
Purity 98%min
Bromo content 32.5%min
Chloro content 14.4%min
Melting Point 160~164 oC
drying loss 0.5%max
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0 (#0) |
79 |
2010.05.17 |
|
| Chemical |
manufacturer of calcium hypochlorite(sodium process)
Calcium Hypochlorite (Sodium Process): Calcium Hypochlorite (Sodium Process)
Formula: Ca(clo)2
Appearance: white or slight gray granular, powder, tablet
Usage:
For bleaching purpose of wood pulp, silk, cloth and fibre.
Disinfection and water-treatment.
Disinfectant for chemical poisonous and radioactive substance.
Packing:
Plastic bag lined II type plastic drum, net wt 25kg/40kg/50kg; or in small package, net wt 1kg/2kg/4kg/10kg. There are sign of "oxidant" on the drum
Quality Standard:
Quality standard ItemTablet
Top-grade First grade Qualified product
Available Chlorine % 70.0 67.0 65.0
Granularity (14-50mesh) % 90 87 87
Moisture % 5.5 10
More information for calcium hypochlorite as the following:
Calcium hypochlorite
Calcium hypochlorite
Identifiers
CAS number
7778-54-3
Properties
Molecular formula
Ca(ClO) 2
Molar mass
142.98 g/mol
Melting point
Decomposes at 100??C
Solubility in other solvents
21 g/100 ml (25??C)
Calcium hypochlorite is a chemical compound with formula Ca ( Cl O ) 2 . It is widely used for water treatment and as a bleaching agent (bleaching powder). This chemical is considered to be relatively stable and has greater available chlorine than sodium hypochlorite (liquid bleach).
Preparation
It is manufactured using the calcium process or the sodium process.
Calcium Process
2 Ca(OH) 2 + 2 Cl 2 ?? Ca(ClO) 2 + CaCl 2 + 2 H 2 O
Sodium Process
2 Ca(OH) 2 + 3 Cl 2 + 2 NaOH ?? Ca(ClO) 2 + CaCl 2 + 2 H 2 O + 2 NaCl
Bleaching powder is actually a mixture of calcium hypochlorite Ca(ClO) 2 and the basic chloride CaCl 2 , Ca(OH) 2 , H 2 O with some slaked lime, Ca(OH) 2 .
Properties
It is a yellow white solid which has a strong smell of chlorine . Calcium hypochlorite is not highly soluble in water. For that reason it should preferably be used in soft to middle hard water. There are two types of calcium hypochlorite - a dry form and a hydrated form. The hydrated form is safer to handle.
Calcium hypochlorite reacts with carbon dioxide to form calcium carbonate and release chlorine :
2Ca(ClO) 2 + 2CO 2 ?? 2CaCO 3 + 2Cl 2 + O 2
Calcium hypochlorite reacts with hydrochloric acid to form calcium chloride :
Ca(ClO) 2 + 4 HCl ?? CaCl 2 + 2 H 2 O + 2 Cl 2
Extreme care should be used in handling this product. Always keep in a cool dry place away from any organic material. When mixing it with water, it is safest to add the calcium hypochlorite to water. This material has been known to undergo self heating and rapid decomposition accompanied by the release of toxic chlorine gas.
Uses
Calcium hypochlorite is used for the disinfection of drinking water or swimming pool water. For use in outdoor swimming pools, calcium hypochlorite can be used as a sanitizer in combination with a cyanuric acid stabilizer. The stabilizer will reduce the loss of chlorine because of UV radiation. Calcium does make the water 'hard' and tends to clog up some filters. However, some types of calcium hypochlorite do contain anti-scaling agents in order to prevent clogging up of pipes/filters. This grade of calcium hypochlorite can also be used in hard waters. The main advantage of calcium hypochlorite is that it is unstabilised unlike chlorinated isocyanurates such as sodium dichloroisocyanurate or trichloroisocyanuric acid. Latter products do contain cyanuric acid. If the level of cyanuric acid becomes too high, it will influence the performance of the chlorine. Pools running on chlorinated isocyanurates should maintain a free chlorine level between 2 and 5 ppm (mg/L), whereas pools running on calcium hypochlorite should have a chlorine level of 1-2 ppm (mg/L).
Calcium hypochlorite (known as 'bleaching powder') is also used for bleaching cotton and linen and is used in the manufacture of chloroform .
Chlorine bombs
Calcium hypochlorite, which is easily obtainable in the form of pool chlorinating agents, has been used to make 'recreational' bombs. (sometimes referred to as chlorine bombs ) Due to its oxidising property, calcium hypochlorite can be mixed with readily oxidised substances (eg. glycerine , or glycols from brake fluid ) to make a weak explosive . An alternative is to mix calcium hypochlorite with weak household acids ( cola , vinegar ), a mixture which will not explode but create a large amount of gas, predominantly chlorine . Both variants are prepared by placing an amount of calcium hypochlorite-containing pool chlorinator into a bottle made preferably from plastic, then adding either an easily oxidised or acidic substance, putting the lid on the bottle, shaking it and throwing it away. The amount of gas produced by the chemical reaction of the two substances will eventually (usually after a few seconds) cause the bottle to rupture explosively. When mixed with flammable substances, flames may be produced as well. While experimenting with 'household' explosive mixtures is obviously a high-risk activity, there are additional dangers. Not only is there a real possibility of the bomb 'going off' earlier than expected and causing serious injury, but the substances involved in the preparation, as well as the products of the chemical reaction, are harmful (calcium hypochlorite being corrosive , an irritant and strong oxidiser; chlorine gas being highly toxic). Plastic bottles will usually just rupture and not produce shrapnel. Glass bottles, however, will explode into sharp fragments which can seriously injure persons standing nearby.
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0 (#0) |
50 |
2010.05.17 |
|
| Chemical |
manufacturer of calcium hypochlorite
Calcium Hypochlorite (Calcium process):Calcium Hypochlorite (Calcium process)
Formula: Ca(clo)2
Appearance: white or slight gray granular, powder, tablet
Usage:
For bleaching purpose of wood pulp, silk, cloth and fibre.
Disinfection and water-treatment.
Disinfectant for chemical poisonous and radioactive substance.
Packing:
Normally in plastic or steel drums lined with inner plastic bag of 45-50kg net each. Can be adaptable in terms of various requirements.
Quality Standard:
Index name Top-grade First grade
Available Chlorine 65% min 60% min
Moisture 3% Max ??3% Max
Yearly Loss of active Chlorine 8% 8%
Calcium Chloride 9% 10%
Color white or light-grey
Shape power,granular, mixed, or following your demand
More information for calcium hypochlorite as the following:
Calcium hypochlorite
Calcium hypochlorite
Identifiers
CAS number
7778-54-3
Properties
Molecular formula
Ca(ClO) 2
Molar mass
142.98 g/mol
Melting point
Decomposes at 100??C
Solubility in other solvents
21 g/100 ml (25??C)
Calcium hypochlorite is a chemical compound with formula Ca ( Cl O ) 2 . It is widely used for water treatment and as a bleaching agent (bleaching powder). This chemical is considered to be relatively stable and has greater available chlorine than sodium hypochlorite (liquid bleach).
Preparation
It is manufactured using the calcium process or the sodium process.
Calcium Process
2 Ca(OH) 2 + 2 Cl 2 ?? Ca(ClO) 2 + CaCl 2 + 2 H 2 O
Sodium Process
2 Ca(OH) 2 + 3 Cl 2 + 2 NaOH ?? Ca(ClO) 2 + CaCl 2 + 2 H 2 O + 2 NaCl
Bleaching powder is actually a mixture of calcium hypochlorite Ca(ClO) 2 and the basic chloride CaCl 2 , Ca(OH) 2 , H 2 O with some slaked lime, Ca(OH) 2 .
Properties
It is a yellow white solid which has a strong smell of chlorine . Calcium hypochlorite is not highly soluble in water. For that reason it should preferably be used in soft to middle hard water. There are two types of calcium hypochlorite - a dry form and a hydrated form. The hydrated form is safer to handle.
Calcium hypochlorite reacts with carbon dioxide to form calcium carbonate and release chlorine :
2Ca(ClO) 2 + 2CO 2 ?? 2CaCO 3 + 2Cl 2 + O 2
Calcium hypochlorite reacts with hydrochloric acid to form calcium chloride :
Ca(ClO) 2 + 4 HCl ?? CaCl 2 + 2 H 2 O + 2 Cl 2
Extreme care should be used in handling this product. Always keep in a cool dry place away from any organic material. When mixing it with water, it is safest to add the calcium hypochlorite to water. This material has been known to undergo self heating and rapid decomposition accompanied by the release of toxic chlorine gas.
Uses
Calcium hypochlorite is used for the disinfection of drinking water or swimming pool water. For use in outdoor swimming pools, calcium hypochlorite can be used as a sanitizer in combination with a cyanuric acid stabilizer. The stabilizer will reduce the loss of chlorine because of UV radiation. Calcium does make the water 'hard' and tends to clog up some filters. However, some types of calcium hypochlorite do contain anti-scaling agents in order to prevent clogging up of pipes/filters. This grade of calcium hypochlorite can also be used in hard waters. The main advantage of calcium hypochlorite is that it is unstabilised unlike chlorinated isocyanurates such as sodium dichloroisocyanurate or trichloroisocyanuric acid. Latter products do contain cyanuric acid. If the level of cyanuric acid becomes too high, it will influence the performance of the chlorine. Pools running on chlorinated isocyanurates should maintain a free chlorine level between 2 and 5 ppm (mg/L), whereas pools running on calcium hypochlorite should have a chlorine level of 1-2 ppm (mg/L).
Calcium hypochlorite (known as 'bleaching powder') is also used for bleaching cotton and linen and is used in the manufacture of chloroform .
Chlorine bombs
Calcium hypochlorite, which is easily obtainable in the form of pool chlorinating agents, has been used to make 'recreational' bombs. (sometimes referred to as chlorine bombs ) Due to its oxidising property, calcium hypochlorite can be mixed with readily oxidised substances (eg. glycerine , or glycols from brake fluid ) to make a weak explosive . An alternative is to mix calcium hypochlorite with weak household acids ( cola , vinegar ), a mixture which will not explode but create a large amount of gas, predominantly chlorine . Both variants are prepared by placing an amount of calcium hypochlorite-containing pool chlorinator into a bottle made preferably from plastic, then adding either an easily oxidised or acidic substance, putting the lid on the bottle, shaking it and throwing it away. The amount of gas produced by the chemical reaction of the two substances will eventually (usually after a few seconds) cause the bottle to rupture explosively. When mixed with flammable substances, flames may be produced as well. While experimenting with 'household' explosive mixtures is obviously a high-risk activity, there are additional dangers. Not only is there a real possibility of the bomb 'going off' earlier than expected and causing serious injury, but the substances involved in the preparation, as well as the products of the chemical reaction, are harmful (calcium hypochlorite being corrosive , an irritant and strong oxidiser; chlorine gas being highly toxic). Plastic bottles will usually just rupture and not produce shrapnel. Glass bottles, however, will explode into sharp fragments which can seriously injure persons standing nearby.
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0 (#0) |
64 |
2010.05.17 |
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