Optical Brightener Swn (C. I. 140/C. I. 52) CAS: 91-44-1/ (61968-71-6) /Fluorescent Brightener Swn
91-44-1
Shanghai, China
Zhishang Chem
100g; 1kg; 25g
Yes
2022-12-31
Dichloromethane,Linocaine hydrochloride
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Product Description
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Seller Information
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Description
Application:
Optical brightener SWN (optical brightener 140) is used in brightening acetate fiber, polyester fiber, polyamide fiber, acetic acid fiber and wool. It also can be used in cotton, plastic and chromatically press paint, and can also be added into resin to whiten the fiber cellulose.
Porperty:
1.Multipurpose brightener with excellent whiteness, soluble in ethanol but insoluble in water.
2.Good solubility and compatibility.
Package: Packaged in 25kgs fiber drum with double PE liners
Using method:
1. Applied to Plastics: the dosage of SWN is generally 0.01-0.06%, which can be mixed evenly with corresponding processing plastics.
2. When used for wool, natural silk and acrylic fiber, it is generally used in liquid state
SWN dosage: wool: 0.05-0.35%; natural silk: 0.05-0.4%; acrylic: 0.05-0.8%
3. This product can also be added to detergents and washing powder as whitening agent with the dosage of 0.001-0.005%.
Packing
· 1kg/aluminium foil bag, with two plastic bags inside.
· 25kg/fiber drum, with two plastic bags inside.
Size:ID 42cm*H52cm,0.08m3/drum;
Net Weight:25kgs Gross Weight:28kgs.
Delivery- ≤50kg, Express delivery recommended, usually called as DDU service;
- ≤500kg,Air shipping recommended, usually called as CIF service;
- >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;
- For high value products, please select air shipping and express delivery for safety.
About us
Shandong Zhishang Chemical Co.,Ltd owned by Zhishang International Group,is a new chemical enterprise with R&D.
manufacture and sales department.
Our company mainly produce pharmaceutical raw materials and intermediate(expecially Carbohydrate derivatives series).
In recent years,we had made big breakthrough in feed additive,plant extraction,industrial chemicals line.
With our "Honest operation,Quality controlling,Clients first"theory,our company enjoy good repute both home and abroad.
The R&D center located in High-tech zone in Jinan,our production based is in Chemical park of Zhangqiu and Tai'an.Our production process strictly conform with ISO 9001 and ISO 2000 standard.Our lab and workshop also follows strictly with GMP standard.Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term and stable business relations.We have large scale liquid chemical terminal and professional chemical warehouse.
We will always adhere to expand business scope and provide the best quality products and service to the world.
- DO YOU ACCEPT SAMPLE ORDER?
We accept sample orders. We will make samples before mass production, and after sample approved, we'll begin mass production. Doing 100% inspection during production, then do random inspection before packing.
2.HOW TO CONFIRM THE PRODUCT QUALITY BEFORE PLACING ORDERS?
You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.
3.WHAT'S YOUR MOQ?
Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
4.DO YOU SUPPLY PRODUCT REPORT?
Yes. We'll give you product analysis report before shipping.
5.IS THERE A DISCOUNT?
Different quantity has different discount.
Our Advantage
10 Years Experience
Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term.
Quality service
Company cooperates with research institutes. We strictly control the process of raw materials up to finished product.
24 hour serviceQuick and clear response to customers questions. Warm after sale service, we will help to solve the problems in your usage.
High quality
Dedicated to serving customers first, we provide reasonable prices, high quality products.ECHEMI Editorial Referencelight tan powder
7-diethylamino-4-methylcoumarin is a light tan grains. Gives bright blue-white fluorescence in very dilute solutions. (NTP, 1992)|DryPowder
7-diethylamino-4-methylcoumarin is a light tan grains. Gives bright blue-white fluorescence in very dilute solutions. (NTP, 1992)|Coumarin 460 is a member of 7-aminocoumarins. It has a role as a fluorochrome.
ChEBI: Coumarin 460 is a member of 7-aminocoumarins. It has a role as a fluorochrome.Basic Info-
Product Name:
7-Diethylamino-4-methylcoumarin
Other Name:2H-1-Benzopyran-2-one, 7-(diethylamino)-4-methyl-;7-(diethyl;7-(diethylamino)-4-methyl-2h-1-benzopyran-2-on;7-(Diethylamino)-4-methyl-2H-chromen-2-one;blancophorffg;c47;Coumalux;coumarin,7-diethylamino-4-methyl-
CAS No.:91-44-1
Molecular Formula:C14H17NO2
InChIKeys:AFYCEAFSNDLKSX-UHFFFAOYSA-N
Molecular Weight:231.29
Exact Mass:231.29
BRN:193303
EC Number:202-068-9
UNII:1SFJ7F6R2C
NSC Number:61830
TSCA:TSCA listed
DSSTox ID:DTXSID9025035
Color/Form:Light beige to light purple
HScode:29322090
Categories:
Characteristics-
PSA:
29.5
XLogP3:3.1
Appearance:Light beige to light purple Crystalline Powder
Density:1.122
Melting Point:72-75 °C (lit.)
Boiling Point:240 °C / 6.5mmHg
Flash Point:152°C
Refractive Index:1.5300 (estimate)
Water Solubility:slightly soluble
Storage Conditions:Keep tightly closed. Store in a cool dry place.
Vapor Pressure:0-0.003Pa at 20-25℃
Toxicity:LD50 oral in rat: 5gm/kg
Flammability characteristics:Not classified
PKA:3.51±0.20(Predicted)
Air and Water Reactions:No rapid reaction with air. No rapid reaction with water.
Reactive Group:Amines, Phosphines, and Pyridines
Reactivity Profile:7-Diethylamino-4-methylcoumarin is a lactone (behaves as an ester) and an amine. Amines are chemical bases. They neutralize acids to form salts plus water. These acid-base reactions are exothermic. The amount of heat that is evolved per mole of amine in a neutralization is largely independent of the strength of the amine as a base. Amines may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated by amines in combination with strong reducing agents, such as hydrides.
Critical Temperature & Pressure:Sealed in dry,Room Temperature
Hazard IdentificationClassification of the substance or mixture
Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 2
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word No signal word
Hazard statement(s) H411 Toxic to aquatic life with long lasting effects
Precautionary statement(s) Prevention P273 Avoid release to the environment.
Response P391 Collect spillage.
Storage none
Disposal P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.
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Seller Information
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Business Type:
Manufactory
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Main Products:
Dichloromethane,Linocaine hydrochloride
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Location:
BUILDING 1,HISENSE INTELLIGENCE VALLEY,NO.2116,OF PHOEIX ROAD, HIGH-TECH ZONE ,JINAN CITY ,SHANDONG PROVINCE,CHINA
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Payment Terms:
D/P,L/C,D/A
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Average lead Time:
15 days
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Total Annual Revenue:
$10 million-$25 million
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Total Employees:
11-50
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Year of Establishment:
2016
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Country Product Purchase Quantity Date Posted Post an enquiry for this product
