4-hydroxynaphthalene-1,5-disulphonic acid
- CAS NO.:117-56-6
- Empirical Formula: C10H8O7S2
- Molecular Weight: 304.3
- MDL number: MFCD00035854
- EINECS: 204-197-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-11-01 14:53:20
What is 4-hydroxynaphthalene-1,5-disulphonic acid?
Chemical properties
1-Hydroxynaphthalene-4,8-disulfonic acid [117-56-6]. (4-hydroxynaphthalene-1,5- disulfonicacid),Schollkopf ’s acid, deltaacid, oxy Chicago acid, C10H8O7S2, Mr 304.3: the sodium saltis readily solubleinwater, butthe barium saltis only sparingly soluble.Cold5 % oleumdehydrates 1-Hydroxynaphthalene-4,8-disulfonic acid to the sultone, whereas with hot 25 % oleum it undergoes sulfonation to give 1-hydroxynaphthalene-2,4,8-trisulfonic acid. Amination (Bucherer) gives 1-aminonaphthalene-4,8-disulfonic acid and caustic fusion gives 1,8-dihydroxynaphthalene-4-sulfonic acid. Diazo coupling and nitrosation take place in the 2-position.
Production Methods
1-Hydroxynaphthalene-8-sulfonic acid-1,8-sultone is heated with sulfuric acid at 80 – 90℃. The reaction mixture is then quenched by pouring into concentrated brine, whereby the sodium salt of 82 crystallizes. After isolation, this intermediate is hydrolyzed by heating with aqueous sodium carbonate and the product is isolated as its sodium salt after cooling.
Properties of 4-hydroxynaphthalene-1,5-disulphonic acid
Density | 1.816±0.06 g/cm3(Predicted) |
pka | -0.42±0.40(Predicted) |
Safety information for 4-hydroxynaphthalene-1,5-disulphonic acid
Computed Descriptors for 4-hydroxynaphthalene-1,5-disulphonic acid
Abamectin manufacturer
Prolife Bio Chemical Industries Pvt Ltd
New Products
4-Aminotetrahydropyran-4-carbonitrile Hydrochloride (R)-3-Aminobutanenitrile Hydrochloride 4-AMINO-TETRAHYDRO-PYRAN-4-CARBOXYLIC ACID HCL 4-(Dimethylamino)tetrahydro-2H-pyran-4-carbonitrile 3-((Dimethylamino)methyl)-5-methylhexan-2-one oxalate 1,4-Dioxa-8-azaspiro[4.5]decane 5-Bromo-2-nitropyridine Nimesulide BP Aceclofenac IP/BP/EP Diclofenac Sodium IP/BP/EP/USP Mefenamic Acid IP/BP/EP/USP Ornidazole IP Diclofenac Potassium SODIUM AAS SOLUTION ZINC AAS SOLUTION BUFFER SOLUTION PH 10.0(BORATE) GOOCH CRUCIBLE SINTERED AQUANIL 5 BERYLLIUM AAS SOLUTION 2-Bromo-1-(bromomethyl)-3-chloro-5-nitrobenzene 2-Bromo-3-nitroaniline N-(3-Hydroxypropyl)-N-methylacetamide 3-Bromo-6-chloropyridazine 4-ethyl-3-nitrobenzoic acidYou may like
-
1-Naphthol-4,8-disulfonic acid 99%View Details
-
117-56-6 98%View Details
117-56-6 -
1823368-42-8 98%View Details
1823368-42-8 -
2-(3-(tert-butyl)phenoxy)-2-methylpropanoic acid 1307449-08-6 98%View Details
1307449-08-6 -
Ethyl 3-(furan-2-yl)-3-hydroxypropanoate 25408-95-1 98%View Details
25408-95-1 -
2-Chloro-5-fluoro-1-methoxy-3-methylbenzene 98%View Details
1805639-70-6 -
1784294-80-9 98%View Details
1784294-80-9 -
Lithium ClavulanateView Details
61177-44-4