2-Aminonaphthalene-1-sulfonic acid 81-16-3 CAS NO.81-16-3

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Keywords

2-Aminonaphthalene-1-sulfonic acid
81-16-3
High quality

Quick Details

ProName: 2-Aminonaphthalene-1-sulfonic acid 8...
CasNo: 81-16-3
Molecular Formula: C10H9NO3S
Appearance: off-white
Application: Organic Chemicals
DeliveryTime: Prompt
PackAge: as per buyer's request
Port: Shanghai,QingdaoTianjin,Guangzhou
ProductionCapacity: 1 Metric Ton/Day
Purity: 99%
Storage: stored in a cool, dry and ventilated p...
Transportation: sea
LimitNum: 1 Metric Ton
Grade: Industrial Grade,Food Grade,Pharma Gra...

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Details

2-Aminonaphthalene-1-sulfonic acid Basic information
Product Name: 2-Aminonaphthalene-1-sulfonic acid
Synonyms: 2-amino-1-naphthalenesulfonate;Kyselina 2-naftylamin-1-sulfonova;Kyselina tobiasova;kyselina2-naftylamin-1-sulfonova;kyselina2-naftylamin-1-sulfonova(czech);kyselinatobiasova;kyselinatobiasova(czech);NaphthylaMine-1-sulfonic
CAS: 81-16-3
MF: C10H9NO3S
MW: 223.25
EINECS: 201-331-5
Product Categories: Intermediates of Dyes and Pigments;Intermediates;Organics
Mol File: 81-16-3.mol
2-Aminonaphthalene-1-sulfonic acid Structure
2-Aminonaphthalene-1-sulfonic acid Chemical Properties
Melting point 180 °C
Boiling point 220°C (rough estimate)
density 1.3588 (rough estimate)
refractive index 1.5250 (estimate)
pka pK1: 2.35 (25°C)
Water Solubility 4.083g/L(20 ºC)
Merck 14,6406
BRN 613084
CAS DataBase Reference 81-16-3(CAS DataBase Reference)
NIST Chemistry Reference 2-Naphthylamine-1-sulfonic acid(81-16-3)
EPA Substance Registry System 2-Amino-1-naphthalenesulfonic acid (81-16-3)
Safety Information
Risk Statements 36/37/38-40
Safety Statements 26-36/37/39
RIDADR 2585
WGK Germany 1
RTECS QK1250000
TSCA Yes
HazardClass 8
PackingGroup III
Hazardous Substances Data 81-16-3(Hazardous Substances Data)

2-Aminonaphthalene-1-sulfonic acid Usage And Synthesis
Chemical Properties Grey white to light pink powder
Uses Azo dye intermediate, optical brighteners.
Purification Methods Crystallise the acid under nitrogen from boiling water and dry it in a steam oven [Bryson Trans Faraday Soc 47 522, 527 1951]. [Beilstein 14 III 2240, 14 IV 2792.]
2-Aminonaphthalene-1-sulfonic acid Preparation Products And Raw materials
Preparation Products J acid-->Lithol Red-->sodium 2-[(2-hydroxynaphthyl)azo]naphthalenesulphonate -->3-Hydroxy-N-2-naphthyl-2-naphthamide-->ReactivebrilliantredKE-7B -->disodium 2-[[1-(2,5-dichloro-4-sulphonatophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]naphthalene-1-sulphonate -->REACTIVE RED 195-->2-Amino-1,5-naphthalenedisulfonic acid
Raw materials Sodium hydroxide-->Hydrochloric acid-->Sulfuric acid -->Ammonia-->Chlorosulfonic acid-->Sulfur dioxide-->2-Naphthol-->2-Ethylnitrobenzene

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