Home » Products » Hide » Optical Brightener Swn (C. I. 140) CAS 91-44-1

PRODUCTS

Share to:

Optical Brightener Swn (C. I. 140) CAS 91-44-1

Model NO.: 99%
Product Name: Optical Brightener Swn (C.I .140)
CAS: 91-44-1
Trademark: sunwisechem
Origin: China
CAS No.: 91-44-1
Formula: C14h17no2
EINECS: 202-068-9
Appearance: Crystal
Usage: Water Treatment Chemicals, Plastic Auxiliary Agents, Surfactants, Leather Auxiliary Agents
Color: White



Inquire

Product Description

Product Description

Product Name: Optical Brightener SWN (C.I .140)
Identification
Synonyms 7-(diethylamino)-4-methyl-coumarin
Molecular Formula C14H17NO2
Molecular Weight 231.29
CAS Number 91-44-1
EINECS/ELINCS 202-068-9

Properties
Appearance White to light brown crystalline powder
Melting Point 70-74ºC

Specification

Item	Specification
Apperance:	White to light brown crystalline powder
Melting point:	70-74ºC
Ash:	0.5%max
Max.absorption wavelength:	375nm(in ethanol)

Application
Optical Brightener SWN is applicable in wool, silk, acetate fiber, triacetate fiber, etc.Also can be
used in cotton, plstic and chromatically press paint and added into resin to whiten the fiber cellulose.

Packing and Storage
Packing 25kg/fiber drum with PE liner
Storage Keeping in stock as ordinary chemicals. Avoid direct contract with skin and eyes.
Soap clean if skin contaminated.

Safety Information
Non-hazardous for air, sea and road freight.
Detailed safety information is contained in each Material Safety Data Sheet, which can be
obtained from our company.

FAQ

Q1: May I get one sample before placing order?
Re: Yes, Sample are available. For normal products, samples are for free and you just need to bear the freight; For those high value products, you just need to freight and certain product cost. When we both cooperate for some times or when you are our VIP customer, free sample will be offered when you need.

Q2: Which payment is available for your company?
Re: T/T, L/C. You can choose the one which is convenient for you.

Q3: How and when can I get my goods after payment?
Re: For small quantity products, they will be delivered to you by international courier(DHL, FedEx, TNT etc.)
or by air. Usually it will cost 3-5days that you can get the goods after delivery.For large quantity products,
shipping by see is worthwhile.It will cost days to weeks to come to your destination port, which depends on
where the port is.

Q4: Is there any possible to use my appointed label or package?
Re: Yes. If needed, we'd like to use label or package according to your requirement.

Q5: How can you guarantee the goods you offer is qualified?
Re: We always believe honesty and responsibility are basis of one company, so whatever products we provide for you all are qualified. We will have goods tested and provide COA before delivery for sure.