1-Naphthalenesulfonic acid
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1-Naphthalenesulfonic acid
structure -
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CAS No:
85-47-2
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Formula:
C10H8O3S
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Chemical Name:
1-Naphthalenesulfonic acid
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Synonyms:
1-Naphthalenesulfonic acid;α-Naphthalenesulfonic acid;HT 907;1-Sulfonaphthalene;1-Naphthylsulfonic acid;119020-53-0
- Categories:
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CAS No:
1-Naphthalenesulfonic acid Basic Attributes
208.23
208.23
201-610-1
0SJH61WM2J
DTXSID4029777|DTXSID7048033|DTXSID20273916
29041000
Characteristics
62.8
1.70
grey fine crystalline powder
1.4±0.1 g/cm3
140 °C
392ºC
380.2ºC
1.670
H2O: freely soluble ;alcohol: freely soluble
Store below +30°C.
Safety Information
III
8
UN 2583 8/PG 2
1
34-11-35
26-36/37/39-45-28A-16
C,F
Stable under normal temperatures and pressures.
P260-P280-P303 + P361 + P353-P304 + P340 + P310-P305 + P351 + P338
H290-H314
|Danger|H302 (93.75%): Harmful if swallowed [Warning Acute toxicity, oral]|P260, P264, P270, P280, P301+P312, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P330, P363, P405, and P501|Aggregated GHS information provided by 251 companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|H302 (65.41%): Harmful if swallowed [Warning Acute toxicity, oral]|P201, P202, P260, P264, P270, P273, P280, P281, P301+P312, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P308+P313, P310, P321, P330, P363, P391, P405, and P501|Aggregated GHS information provided by 136 companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|H314 (100%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]|P260, P264, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P405, and P501|Aggregated GHS information provided by 44 companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
1-Naphthalenesulfonic acid Use and Manufacturing
It is derived from naphthalene by sulfonation of chlorosulfonic acid. In the sulfonation reaction, o-nitroethylbenzene is used as a solvent, and naphthalene, chlorosulfonic acid and o-nitroethylbenzene are combined at a molar ratio of 1:1.1:3. The sulfonation reaction is carried out at 0-5°C to obtain 97% purity 1-Naphthalenesulfonic acid. If 98% sulfuric acid is used as the sulfonating agent, the reaction temperature is 0-40℃, and the obtained sulfonate contains 83-85% of 1-naphthalenesulfonic acid and 15-17% of 2-naphthalenesulfonic acid. Add magnesium or sodium salt , The precipitated magnesium salt or sodium salt of 2-naphthalenesulfonic acid can be filtered out. The filtrate containing free 1-naphthalenesulfonic acid is concentrated, cooled, crystallized, filtered, washed with water and dried to obtain a finished product.
Used for preparing 1-naphthol, 1,5-naphthalene disulfonic acid and other intermediates
Naphthalenesulfonic acids: ACTIVE|Naphthalenesulfonic acid, di-C5-6-alkyl derivs.: ACTIVE|1-Naphthalenesulfonic acid: ACTIVE
Computed Properties
Molecular Weight:208.24
XLogP3:1.9
Hydrogen Bond Donor Count:1
Hydrogen Bond Acceptor Count:3
Rotatable Bond Count:1
Exact Mass:208.01941529
Monoisotopic Mass:208.01941529
Topological Polar Surface Area:62.8
Heavy Atom Count:14
Complexity:291
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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