liquid fluorscent whitening agent Active substance in the total liquid solution is 25%,HPLC analysis shows the main content is 90%. 240Kg or 1MT
Supplier: Industrial chemicals likes tetra sulpho optical brightener and di sulpho optical brighteners for pulp and paper, caustic soda flakes / sodium hydroxide, caustic soda lye, asa sizing agent, akd sizing agent, wet strength resin agent / dry strength resin (polyamido polyamine epichlorohydrin resin with a high% of solids 25 35%), sae anionic for sizing agent (butyl acrylate styrene polymer 24 26%), sae cationic for sizing agent (copolymer n [3 (dimethylamino) propyl] methacrylamide / styrene ]]) for paper industry, fluorescent brightening agents, optical brighteners for paper, fluorescent whitening agents, optical brightener, carbomer, carbopol, polyaluminium chloride, carbon brushes and brush holders, pp granules, plastic granules, eps granules and many more.
Supplier: Dyestuffs dircet, acid, liquid and fluorescent whitening agent
Supplier: Fluorescent brightening agent, optical whitening agent , optical brightening agent, fluorescent whitening agent
Buyer: O-tolunitrile
Optical brighteners, also known as fluorescent whitening agents (FWAs) or optical brightening agents (OBAs), are chemical compounds used in various industries, primarily in textiles, paper, and detergents. These substances absorb ultraviolet (UV) light and re-emit it as visible blue light, making colors and whites appear brighter and more vivid. Optical brighteners are often added to laundry detergents to give the illusion of cleaner and whiter clothing by enhancing their visual brightness. They are also used in the paper industry to improve the brightness and whiteness of paper products. Optical brighteners' ability to improve the appearance of materials under certain lighting conditions makes them valuable in enhancing the visual quality of a wide range of consumer and industrial products.
Commodity: Sodium Hydrosulfite Other name: Synonyms: Sodium Hydrosulphite; Sodium Dithionite; Dithionous acid, Disodium salt; Sodium Sulfoxylate CAS No.: 7775-14-6 Molecular Weight: 174.10 Chemical Formula: Na2S2O4 Product Description Appearance: White, crystalline powder. Product Feature Odor: Slight irritative. Specific Gravity: Unavailable Solubility: Soluble in water. Density: 2.19 pH: 6-7 pH Test-Method: PH test paper. % Volatiles by volume @ 21C (70F): 0 Boiling Point: Not applicable. Melting Point: >300 C Decomposes. Vapor Pressure (mm Hg): No information found. Bulk Density: ~0.9 Evaporation Rate (BuAc=1): No information found. Application 1. Widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile textile bleaching . 2. bleaching paper pulps , especially mechanical pulps, its the most fittable bleaching agent in pulps. 3. bleaching kaolin clay, fur bleaching and reductive whitening, bleaching of bamboo products and straw products, 4. in mineral, the compound of thiourea and other sulphides. 5. as reducing agent in chemical industry. 6. Sodium hydrosulfite food additive grade is used in foodstuffs, as bleaching agent and preservative dried fruits, dried vegetable, vermicelli, glucose, sugar, rock sugar, caramel, candy, liquid glucose, bamboo shoots, mushrooms and canned mushrooms. Packaging 50kg/100kg net in iron drums with double PVC bags Product Specification/Models NDEX 90%, 88%, 85%. FOOD ADDITIVE Na2S2O4, 90%, 88%, 85%, Fe 20ppm ZincZnOther heavy metal calculated as Pb, 1ppm Water Insolubles05% Shelf Life(month)12
Chemical name: 4,4-Diaminostilbene-2,2-disulfonic acid Chemical formula: C14H14N2O6S2 Molecular weight: 370.4 CAS NO.:81-11-8 Property: 1)Light yellow cream or powder, soluble in ethanol and ether; insoluble in water, easily soluble in alkaline solution. 2)Can be easily oxidized into red; has the property of aromatic acid or aromatic amine Quality index: Item Index (1)Appearance dry/wet light yellow powder/light yellow cream (2)Dry product total amino value(gross dry sample)% 95.0 (3)Degree of pigmentation(EOD) 0.12 (4)Content of alkali insolubles (gross cream )% 0.08 (5)Benzyl compound(gross sample)% 0.25 (6)Ash content% 2.2. Dry product: in 25kg woven bags or upon clients' request; wet product: in 40kg woven bag or upon clients' request.
Chemical name: 4,4-Dinitrostilbene-2,2-disulfonic acid Structural formula: Chemical formula: C14H10N2O10S2 Molecular weight: 430 CAS NO.:128-42-7 Quality index: Item Index (1)Appearanceorange powder (2)Binitro acid content(gross dry product)% 66.0 (3)binitrobenzyl compound (gross dry product )% 0.5 (4)Other organic impurities(gross dry product )% 2.0 (5)Inorganic salt(gross dry product )% 2.0 (6)Water insolubles(gross dry product)% 1.0 Main use: it is an intermediate of dyes. 25kg plastic woven bag.
Chemical name: p-nitrotoluene-o-sulfonic acid Structural formula: Chemical formula: C7H11NO7S Molecular weight: 253 CAS NO.:121-03-9 Quality index: Item Index (1)Appearance milk white crystal (2)Assay (Gross sample)% 80.0 (3)Moisture (Gross sample)% 5.0 (4)Free acid (Gross sample)% 1.0 (5)Insolubles(Gross sample% 0.1 Main use: it is an intermediate of dyes, can be used to manufacture Yellow R. 25kg plastic woven bag or upon clients' request.
