Ithout other fiber (no three wire.)
3 our company refined cotton has following series goods:
Polymerization600600¡«800801¡«10001001¡«13001301¡«16001601¡«19001901¡«22002201¡«24002401¡«2600¡ý2600
Alpha-cellulose % >=98.096.09898.598.899.099.099.099.099.0
Moisture % <=8.08.08.08.08.08.08.08.08.08.0
Water absorptivity g/15g150150150150150150150150150140
Ash content % <=0.100.100.100.100.100.100.150.150.150.15
Sulphuric acid insoluble % <=0.100.100.100.100.100.150.150.200.200.20
Brightness % >=858080808585808075¡«8775¡«87
C series refined cotton standard specification for acetate grade
Typesc100c200
Viscosity mpa.S71¡«120121¡«300
Degree of polymerization1301¡«16001601¡«1900
Alpha-cellulose % >=99.099.0
Moisture % <=8.08.0
Water absorptivity g/15g160160
Ash content % <=0.100.10
Sulphuric acid insoluble % <=0.100.10
Brightness % >=8787
Iron content mg/kg <=1515
Ether content % <=0.150.15
Soda soluble 7.14% <=2.02.0
Copper content <=0.200.20
Pure cotton cloth, pvc lined bag, kraft paper, or as request
50-60kg/bale
Refined cotton/cotton linters pulp as ether, ester products, known as industrial msg in the world.It is a fiber material made of linters by alkaline cooking. It can be used for industrial production of nitrocellulose, cellulose ether:cmc, mc, ec, hpc, cec etc. And acetate. We adopting 100% xinjiang cotton linters as raw material, alkaline cooking, oxidizing bleaching refined a uniform loose, no wood, bamboo shavings, sand, oil, metals and other impurities on the white floc. The main chemical ingredient is cellulose, lignin and hemicellulose. It is composed of carbon, hydrogen, three kinds of elements, the oxidizing bleaching subtracting refined cooking and refined cotton, has
40*60*80cm 60-70kg woven bags
Specifications
Rayon staple grade: 1.Used for production of viscose staple fiber. 2.Brightness: >80% 3.Bleached
Used for production of viscose staple fiber.Specifications: 1) degree of polymerization: 500¡à202) alpha cellulose: ¡ý93%3) ash: ¡ü0.10%4) brightness: ¡ý80%
5) fe: ¡ü20ppm6) weight: 650¡à100g/m2
7) moisture: 10%+-1.5%8) size: 600 x 800mm
Packing:pure cotton cloth, pvc lined bag, kraft paper, or as request
2.5
Alkali absorption value/%500480450
Weight(g/m2)700¡à100700¡à100700¡à100
Moisture %10.0¡à0.510.0¡à0.510.0¡à0.5
Note:m1(dynamic viscosity) by request
Pure cotton cloth, pvc lined bag, kraft paper, or as request
Difference between three high efficiency solar vacuum tube (effective tubes, high cold tube, high temperature special efficiency tube)and ordinary tube:
Absorption of heat membrane layer is difference between these two kind of tubes. (Absorption of heat membrane layer is the key part of vacuum tubes.) Absorption of heat membrane layer of three high efficiency solar vacuum tube is interference membrane, common tube is gradient membrane. The difference is mainly for interference membrane and the gradient membrane distinction.
1. Fundamental distinction: membrane layer structure is different, the principle of the absorption of sun's rays result in differently. gradient membrane, for multilayer, its absorbing layer is generally 9 layers. It to the sun's rays are layered absorption, and its absorb the light performance gradually become tall. Because the gradient structure, launch with increasing temperature rise than work, that temperature in 300 to 500 C than when launch greatly increased. The aluminum ions and absorbing layer in high temperature condition, lively nature greatly enhance the, and develop a drift. This happened in the internal structure of membrane layer caused confusion, coating began to aging. In the long run, the high temperature condition, membrane layer can fall off, thereby affecting the vacuum tube heat efficiency and life integrating.
Interference membrane, its absorbing layer altogether 2 layer, among two layer membranes, because the metal content between the different and interfere ratio effect, make absorption ratio increase, launch ratio decrease. Plus effect of reduce emission from minus reverse layer, thus achieve more higher absorptance and reducing the role of launch ,greatly improved collection thermal efficiency.
2.Features: Absorptance of three high efficiency solar vacuum tube increased by 12%, and launch reduced by 30 to 40 percent, the super absorbing, heat loss less, warming faster. Efficient tube, the super absorbing, thermal efficiency is high, warming faster, in the same light conditions, can create more and higher temperature water than common tubes ; high cold tube, copper ions for the launch of aluminum ion mantua, so low 0.2 thermal loss rarely, in high cold environment can still work normally. hot water turn out as usual under- 30 C. high temperature special efficiency tube, because the membrane layer stainless steel ion high temperature resistant, fight air drying. Membrane layer under the condition of the 400 C, not attenuation, not aging, discoloration.
In the same light conditions, ordinary tube heat absorption is lower than three high efficiency solar vacuum tube, can't even meet requirements that wash bath; In lower temperature, heat loss is bigger, collection hot effect is reduced, affect the normal use; Especially in the empty sun over 270 C, membrane layer began to aging, fall off, absorption rate drastically reduce, life shortens greatly.
3.Technology: high temperature special effects tube, high cold tube, efficient tube used respectively to three target, double target, single target magnetron sputtering craft; Ordinary tube typically use the single target magnetron sputtering technology.
4, appearance: A, Mouth of tube, here membrane layer above 800 C high temperature condition sealing off part is inevitable.
As high temperature special effects tube has high temperature resistant, only 1 cm long without membrane layer in mouth of tube, while others without membrane layer for without high temperature resistant, tube membrane layer falls off the length is about
2.5 cm
B, Inner tube color: with macroscopic observation, high-temperature tubes and high cold tube for internal color is kermesinus (for membrane layers bottom is copper); the bottom And efficient tube and ordinary tube are white (for membrane layer bottom is aluminum).
Anyhow, interference membrane is the new breakthrough basis of gradient on membrane technology ,it is the great innovation in coating technology progress and become current global, interference coating of the most advanced coating technology. But also to the vacuum coating technology bring epoch-making change. Especially with the high temperature effects made interference membrane, can also be used for cooling tube, dry, seawater desalination, opened up the update for vacuum tubes wider application fields.
Solar collector tube introduction
Feature:
1 Quality warranty :15 years
Quickly thermal collecting efficiency.
It works fine under cold weather and area.
Three kind of solar collector:
Common :evacuated collector tubes.
High-efficiency: Three-target evacuated collector tubes: blue and black-golden
High-efficiency: Three-target evacuated collector tubes: purple-golden (purple and golden)
Solar evacuated collector tubes technical data:
Dimension: 47: 58
Material of tubes: 3.3 high borosilicate: 3.3 high borosilicate
Glass expansion ratio: 3.3¡¾0.1X10-6 k-1: 3.3¡¾0.1X10-6 k-1
Outer diameter of tubes: 47¡¾0.7: 58¡¾0.7
Inner diameter of tubes: 37¡¾0.7: 48¡¾0.7
Thickness of glass: 1.6¡¾0.15: 1.6¡¾0.15
Transmittance: 0.89: 0.89
Selective coating: SS-CU-AL-N/AL: SS-CU-AL-N/AL
Adsorptivity: 0.86(AM1.5): 0.86(AM1.5)
Emissivity: 0.080(80¡¾5): 0.080(80¡¾5)
Vacuum degree: 5.0 X 10-3Pa: 5.0 X 10-3Pa
Collecting performance under sunshine: 190m2/kw: 190m2/kw
Hailstone resistance: 25mm: 25mm
Start up fast and collect solar energy fully
Unique super pure copper surface,allowing reflection and minimal heat loss.
High level vacuum ensure operation under cold weather.
Long time warranty to 15 years.
10pcs/Carton.
Applications: superior heat resisting products and crafts.
15-20KG/Carton.
Feed grade.content above 90%,
Application:Used as feed additive,special used for aquaculture feed additive, promote the shrimp molt and growth.Product Name: Cholesterol
Synonyms: (3.beta.)-Cholest-5-en-3-ol;(3|;)-cholest-5-en-3-ol;3|;-hydroxycholest-5-ene;
(4.5,6-Cholesten-3beta-ol;5:6-cholesten-3-beta-ol;5:6-Cholesten-3beta-ol;
(5.5-Cholesten-3B-ol;5-cholesten-3|Â-ol
CAS: 57-88-5
MF: C27H46O
MW: 386.65
EINECS: 200-353-2
Product Categories: Cholesterol and DerivativesOther Lipid Related Products;FA/FAME/Lipids/Steroids;Lipid Analytical Standards;Lipids;Sterols;SterolsFood&Beverage Standards;Intermediates & Fine Chemicals;Pharmaceuticals;Steroids
Mol File: 57-88-5.mol
Cholesterol Chemical Properties
mp; 140-147;C
alpha; -36 o (c=2, dioxane)
bp; 360;C
density; 1.06
Fp; 250 ;C
storage temp.; 2-8;C
solubility; H2O: 0.002;mg/mL
form powder
color white
Water Solubility negligible
Merck 14,2201
BRN 1915888
CAS DataBase Reference 57-88-5(CAS Data Base Reference)
NIST Chemistry Reference Cholesterol(57-88-5)
Chemical properties¡êo white or light yellow crystal or crystalline powder, insoluble in water, soluble in ethanol, petroleum ether.
Main function:The main raw material of vitamin D3. It also can be used to synthesize artificial bezoar; also can be used for aquaculture feed additive, promote the shrimp molt and growth ,used in cosmetics can play a moisturizing effect.
Product Detail
Basic Info
;Efficacy:;Promote Nutrition
Classification:Feed Additive ,Chemical Additives
Type:;Nutrition Enhancers
Appearance:;Powder
Color:;White
Assay;90-95%
Export Markets:Global
Additional Info
Trademark:;Chem-Bright
Packing:;25kg/Drum
Standard CP2010,USP-32 grade
Origin:;Anhui,China
Production Capacity:20 MT/Month
Product Description
Cholesterol
:cholesterol from Ox/Pig/Sheep brain,5-Cholesten-3beta-ol; Cholesterol, NF;
CAS:57-88-5
EINECS:200-353-2
Molecular formula:C27H46O
Molecular; weight:386.6535
It is extracted from animal organs. It is cholest-5olefince-3|;-ol. It is calculated as dry goods including no less than 95.0% cholesterol
Application: it is one of the raw material of artificial bezoar and also the primary raw material to synthesize vitamin D2 and D3. It is also a good surface active agent for pharmaceutical preparation and the raw material for cosmetics.
Properties: it is white or almost white crystalline or crystal powder with a little bit smell.
Assay: 98%
melting point: 140-147oC
density: 0.98g/cm3
boiling point: 480.6;C at 760 mmHg
Flash point:209.3;C
Vapour pressure:2.95E-11mmHg at 25;C
Specific rotation:-36; (c=2, dioxane)
Loss on drying ;¨¹0.3%.
Packing: 25 kg/barrel Inner double PP bag.
Storage: seal and store in dry location
Packing: 25 kg/barrel Inner double PP bag."
