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Optical Whitener

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MOQ : 150 Kilograms

Optical Whitener Specification

Other Names
Fluorescent Brightener

Smell
Odorless

Storage
Store in cool, dry place, away from direct sunlight

Physical Form
Powder

Shape
Granular/Powder

Melting Point
> 300C (decomposes)

EINECS No
230-597-5

Shelf Life
2 Years

Molecular Formula
C28H20S2O6Na2

Type
Optical Whitener

CAS No
7128-64-5

Usage
Textile, Paper, Detergent, Plastics, and Leather

Appearance
Fine Powder

Color
White to Off-White

Purity
99%

Adsorbent Variety
Fluorescent Whitening Agent

Solubility
Soluble in water

Ionic Nature
Anionic

Compatibility
Compatible with most detergents and surfactants

pH Value (1% solution)
7.09.0

Safety
Non-flammable, handle with care

Packing
25 kg fiber drum/HDPE bag

Application
Used for improving whiteness and brightness in various materials

Moisture Content
< 1%

Optical Whitener Trade Information

Minimum Order Quantity
150 Kilograms

Payment Terms
Cash in Advance (CID), Cheque

Supply Ability
150 Kilograms Ton Per Month Per Month

Delivery Time
10 Days

Sample Available
Yes

Sample Policy
Free samples are available

Packaging Details
As per customer requirement.

Main Export Market(s)
Asia

Main Domestic Market
South India

About Optical Whitener

Our company has succeeded to achieve respectable position in the market by offering Optical Whitener for Paper. It is a good optical whitener for paper and gives optimum results on unsized or sized papers. This whitener is particularly suitable for pigmented coating slurry with a starch. We use premium quality compounds to process this whitener. Clients can avail this Optical Whitener for Paper from us in different quantity packaging options. Also, we offer this whitener at pocket friendly prices.

Features:

Easily soluble
Longer shelf life
Precise pH value

EUROPAL 2BHC LIQUID

Optical Brightening Agent For Paper And Gives Optimum Results

Good Optical Whitener for Paper and gives optimum results on unsized or sized papers where the pH is above 5.5.

General Properties:

APPEARANCE	Light to dark straw coloured liquid.
Chemical Constitution	Stilbene sulphonic acid derivative (Tetra Sulfonic)
Ionic	Anionic
Affinity	Medium
pH(100% Solution)	8.5 to 9.5
Hue	Bluish white
Solubility	Easily soluble
pH Stability	5 to 12
Specific Gravity	1.18 to 1.20

Applications

IN THE MASS
Europal 2BHC Liq. should be added where the stock is vigorously agitated. It can be added directly in the mixing chest where the pH is around 5.0 to get best results. Generally 0.2 - 0.3%. Europal 2BHC Liq. of dry pulp is adequate. In special cases 0.75%. Europal 2BHC Liq. of dry pulp will be advantageous.
SURFACE COATINGS

IN SIZE COATINGS: The amount required is generally 1.0 - 5 gm/ltr. Europal 2BHC Liq. To improve the printing properties of printing and writing paper size solution (reduced starches, CMC etc.) are often applied to the surface on the size press of some other device which may or may not be part of the paper machine. Maximum whiteness is obtained at 7gm/ltr Europal 2BHC Liq. (starch base) depending on the prevailing condition and the degree of whiteness.

IN PIGMENTED COATING SLURRIES: Europal 2BHC Liq. is particularly suitable for pigmented coating slurries with a starch/latex base due to it's high affinity for the normal range of binders. The quantities required depend on the basic whiteness of the white pigments and binders, the machine speed, the thickness of coating and white effect required. To obtain the maximum white effect the pH of the coating should be kept slightly alkaline (pH 8-9) with concentrated ammonia. The recommended quality is generally 0.5 - 5gm/ltr. depending upon the make up of the coating slurry.

Note:

Use of the cationic auxiliaries is not desirable as these may get precipitated with the anionic optical brighting agent
Use of chelating agents such as E.D.T.A. (0.2 gm/ltr) is suggested to prevent interference due to heavy metal ions such as Copper, Iron, Zinc and Magnesium.

Elevate Material Whiteness Effortlessly

Our optical whitener, a premium fluorescent brightener, is trusted across textile, detergent, paper, plastic, and leather industries for imparting a radiant, brilliant whiteness. Soluble in water, with stable pH and high purity, it blends seamlessly into various formulations.

Comprehensive Compatibility and Safety

Engineered to work with most surfactants and detergents, this anionic brightener is non-flammable and safe to handle with standard precautions. Its granular or powder form ensures ease of use and consistent distribution in manufacturing processes.

FAQs of Optical Whitener:

Q: How should Optical Whitener be stored for optimal shelf life?

A: Optical Whitener should be stored in a cool, dry location, away from direct sunlight. This helps preserve its quality and ensures it remains effective for up to two years, as indicated by the products specified shelf life.

Q: What is the recommended process for using Optical Whitener in industrial applications?

A: Generally, Optical Whitener is dissolved in water and then added to formulations during the manufacturing of textiles, paper, detergents, plastics, or leather. It integrates well due to its high solubility and compatibility with most surfactants and cleaning agents.

Q: When can the enhanced whitening effect be observed after application?

A: The whitening and brightening impact of Optical Whitener is typically noticeable immediately after the treatment process in textiles, paper, or other substrates, lending a clear, brilliant appearance upon drying or finishing.

Q: Where can Optical Whitener be applied most effectively?

A: Optimal results are seen in textile plants, paper factories, detergent manufacturing facilities, and plastic or leather processing units. Its versatile compatibility supports widespread industrial use.

Q: What benefits does Optical Whitener offer compared to standard whitening methods?

A: Optical Whitener adds significant value by intensely enhancing material brightness and whiteness without affecting the substrates integrity or texture. It provides a highly efficient, uniform aesthetic without additional harsh chemicals.

Q: Is Optical Whitener safe to use, and what precautions are necessary during handling?

A: Yes, it is non-flammable and odorless, but as with any chemical powder, it should be handled with care. Standard safety practices, such as wearing gloves and avoiding inhalation, are recommended during handling and storage.

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