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.
Name: 2-hydroxy-6-naphthoic acid Alias: 2,6 acid; 2-naphthol-6-carboxylic acid; 6-hydroxy-2-naphthoic acid; 6-hydroxy-2-naphthoic acid CAS NOï¼?16712-64-4 Molecular formula: c11h7o3 Molecular weight: 187.172 Product quality standard: Appearance characte Light yellow powder Content 99% 2-naphtholâ?¤0.10% 2,3-acidâ?¤0.10% melting point243-245�°C Loss on dryingâ?¤0.30% heavy metalâ?¤20ppm Application: used in medicine, liquid crystal, paint, etc. Packing: 25kg / cardboard barrel, or according to customer requirements
UV-284 RAW MATERIAL FOR ATTITUDE WHITENING FACE WASH - PERSONAL CARE PRODUCT BP-4 Benzophenone-4 Specifications: Items Specification Appearance Off-white or light yellow crystalline Specific extinction E285:460min UV absorbance E325:290min Content 99.0% min PH value 1.2-2.2 Melting point 140â?? min Loss on drying 3.0% max Turbidity in water 4.0 EBC max Heavy metals 5ppm max Gardner color 2.0 max
Supplier: Paper products, medical instruments and equipment, surgical instruments and equipment, scientific instruments and equipment, medical disposables, all types of chemicals, fresh vegetables, fresh fruits, tea, incense sticks, stationery items, educational kits, household items, handicrafts, furniture, crockery, scrap
2-Naphthol Basic information Chemical Properties Application Preparation Product Name: 2-Naphthol Synonyms: c.i.37500;c.i.azoiccouplingcomponent1;c.i.developer5;Developer A;Developer AMS;Developer BN;developera;developerams CAS: 135-19-3 MF: C10H8O MW: 144.17 EINECS: 205-182-7 Product Categories: Fluorescent;Naphthalene;pigments;alcohol;MICROCIDIN;Color Former & Related Compounds;Developer;Functional Materials;Intermediates;Aromatic Compounds;Alphabetical;Bioactive Small Molecules;Biochemicals and Reagents;Building Blocks;C9 to C20+;Cell Biology;Chemical Synthesis;Fluorescent Indicators and Probes;Fluorescent Probes;Labels;N;Organic Building Blocks;Oxygen Compounds;Particles and Stains;pH Sensitive Probes and Indicators;Phenols;Dyestuff Intermediates;Aromatics Mol File: 135-19-3.mol 2-Naphthol Chemical Properties Melting point 120-122 C(lit.) Boiling point 285-286 C(lit.) density 1,28 g/cm3 vapor density 4.97 (vs air) vapor pressure 10 mm Hg ( 145.5 C) refractive index 1.5762 (estimate) Fp 153 C storage temp. Refrigerator solubility methanol: soluble1g/10 mL, clear, colorless to light yellow pka 9.51(at 25C) form Powder, Crystals or Granules color White PH Range Non& uorescence (8.5) to blue & uorescence (9.5) Water Solubility 1 g/L (20 C) �»max 226nm, 265nm, 275nm, 286nm, 320nm, 331nm Merck 14,6384 BRN 742134 Stability: Stable. Combustible. Dust may form explosive mixture with air. Incompatible with strong oxidizing agents, phenol. Major Application Display device, semiconductors, photoimaging materials, inks, toner, chalk, security paper, molding materials, tin plating method, rubber, adhesive, leather, detergent, hair dyes, antimitotic drug, anticancer agent, antiinflammatory agent, treatment of acne vulgaris (pimples) and other dermal ailments (rashes, scratches, blemishes, hair loss), disorders InChIKey JWAZRIHNYRIHIV-UHFFFAOYSA-N CAS DataBase Reference 135-19-3(CAS DataBase Reference) NIST Chemistry Reference 2-Naphthalenol(135-19-3) EPA Substance Registry System 2-Naphthalenol (135-19-3) Safety Information Hazard Codes Xn,N Risk Statements 20/22-50 Safety Statements 24/25-61 RIDADR UN 3077 9/PG 3 WGK Germany 2 RTECS QL2975000 F 8 Autoignition Temperature 430 C TSCA Yes HazardClass 9 PackingGroup III HS Code 29071590 Hazardous Substances Data 135-19-3(Hazardous Substances Data) Toxicity LD50 orally in Rabbit: 1960 mg/kg LD50 dermal Rabbit > 10000 mg/kg 2-Naphthol Usage And Synthesis 2-Naphthol Preparation Products And Raw materials
4-Hydroxybenzoic acid Chemical Name:4-Hydroxybenzoic acid Trade Name:p-oxybenzoic acid Molecular Formula:C7H6O3 Molecular Weight:138.12 CAS No.:99-96-7 Properties:white odorless crystalline powder, easily soluble in hot water and alcohols, aethers and acetone, slightly soluble in cold water and benzene, insoluble in carbon bisulfide; relative density is 1.46 Use: Can be used as antiseptic, intermediate of dyes, pharmaceuticals; as main material of liquid crystal polymers; as material of pesticide intermediate Specification Item Specification Polymer Grade Technical Grade Appearance white crystal powder white crystal powder Purity(on dry base) % 99.6 99.0 Melting Point 214-217 212-216 Odor odorless odorless Solubility Clear and transparent clear and transparent Loss on Drying % 0.20 0.50 Color(Pt-Co) 10 40 Ash % 0.02 0.15 Sulfate(SO42-) 0.01 0.05 Chloride(Cl-) % 0.005 0.02 Phe% 0.01 0.10 Salicylic Acid % 0.02 0.10 4-Hydroxyisophthalic Acid(HIPA) ppm 500 / Insolubles in Metha ppm 50 / Potassium(K+) ppm 5 / Sodium (Na+) ppm 5 / Iron (Fe) ppm 5 / Ca2++Mg2+ppm 5 /
Dep=di-2
Supplier: Food commodities, agriculture products, chemicals
seeds:
sesame seeds, watermelon seeds, gum arabic
chemicals:
sulphuric acid 98%
hydrochloric acid 33%
sodium hypochlorite 10 12%
sodium hydroxide 50%
caustic soda flakes
caustic soda prills 99%
chlorine
calcium chloride 36%
petroleum products:
en590 10ppm diesel
automobile oils, lubricants
mineral motor oil
10w30, 10w40, 15w40,20w40,20w50
transmission oil
complex dexron ii
complex dexron iii
complex dexron iiii
complex type a
brake oil
complex dot 3
complex dot 4
complex dot 5.1
cutting oil
hydraulic oil
Services: Distribution, import, export, trading services
Buyer: Food commodities, agriculture products, chemicals
Supplier: Fruits , vegetables ,corn oil , soya bean oil , sunflower oil , rapeseed oil , olive oil, briquettes, wood pellets , fresh fruits , dried fruits, diammonium phosphate, copy paper , vanilla beans , garlic , ginger , rice , cinnamon, raisin, shea butter, carob powder , beans , sunflower seeds , black pepper , coconut powder , fish meal , coconut fatty acid distillate , ldpe, hdpe , animal hides , tomato paste ,sesame seeds , almond nuts , chia seeds , sugar, rizla papers , fish maws , stock fish ,hazel nuts , stearic acid , gallstones , starch , copper cathode , copper scrap , charcoal , tires , lighters , soft drinks, energy drinks ,whey protein ,honey , chicken feet , car engines , coffee , cocoa powder , disposable face mask ,disposable gloves ,coriander seeds , pistachio nuts , cardamom , mustard seeds , medical devices, disposable gloves , disposable facemask, spices , sport supplements, sweeteners, frozen fish , dried fruits , mineral water, powder milk, frozen chicken
We can supply Acetic Acid Industrial Grade and Food Grade. Commodity:Acetic acid. Other name: Glacial acetic acid Molecular formula CH3COOH CAS:64-19-7 EC No.200-580-7 Introduction: Annual capacity of our glacial acetic acid is 350,000.the raw material is methanol.we use a new technical process to produce: Methanol decomposition. the most important characteristic of this way are as following: mild oder; high quality--can reach 99.99%min; low cost--30% lower than oil decomposition and ethanol decomposition way. Specifications: Apha color:
