2-Naphthylamine-5,7-disulfonic acid
- Product Name
- 2-Naphthylamine-5,7-disulfonic acid
- CAS No.
- 118-33-2
- Chemical Name
- 2-Naphthylamine-5,7-disulfonic acid
- Synonyms
- amino-iacid;AMINO J-ACID;kyselinaamino-i;2-Naphthylamin-5,7-disulfonsure;2-naftylamin-5,7-disulfonansodny;6-amino-1,3-naphthalenedisulfonic;2-Naphthylamine-5,7-disulfonicaci;6-amino-3-naphthalenedisulfonicacid;2-Naphthylamine-5,7-disulfonicaacid;2-NAPHTHYLAMINE-5,7-DISULFONIC ACID
- CBNumber
- CB9207888
- Molecular Formula
- C10H9NO6S2
- Formula Weight
- 303.31
- MOL File
- 118-33-2.mol
2-Naphthylamine-5,7-disulfonic acid Property
- Boiling point:
- 568.34℃[at 101 325 Pa]
- Density
- 1.769±0.06 g/cm3(Predicted)
- vapor pressure
- 0Pa at 25℃
- pka
- -0.91±0.40(Predicted)
- Water Solubility
- 229g/L at 15℃
- LogP
- -1.85
- CAS DataBase Reference
- 118-33-2(CAS DataBase Reference)
- EPA Substance Registry System
- 1,3-Naphthalenedisulfonic acid, 6-amino- (118-33-2)
Safety
- RIDADR
- 1759
- HazardClass
- 8
- PackingGroup
- III
- Toxicity
- rat,LD50,oral,2gm/kg (2000mg/kg),"Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986Vol. -, Pg. 1059, 1986.
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- N325055
- Product name
- 2-Naphthylamine-5,7-disulfonicAcid
- Packaging
- 100mg
- Price
- $75
- Updated
- 2021/12/16
- Product number
- FA41567
- Product name
- 2-Aminonaphthalene-5,7-disUlfonic acid
- Packaging
- 1g
- Price
- $84
- Updated
- 2021/12/16
- Product number
- 097328
- Product name
- 6-Aminonaphthalene-1,3-disulfonic acid
- Purity
- 95+%
- Packaging
- 1g
- Price
- $104
- Updated
- 2021/12/16
- Product number
- FA41567
- Product name
- 2-Aminonaphthalene-5,7-disUlfonic acid
- Packaging
- 2g
- Price
- $134.4
- Updated
- 2021/12/16
- Product number
- U257
- Product name
- 2-Aminonaphthalene-5,7-disulfonicacid
- Packaging
- 1g
- Price
- $180
- Updated
- 2021/12/16
2-Naphthylamine-5,7-disulfonic acid Chemical Properties,Usage,Production
Chemical Properties
White glossy long prismatic needle-like crystals, the crystals precipitated from water contain 5 molecules of crystal water. The solubility in water at 20°C is 23%. Its monosodium salt and monopotassium salt are commonly used in industry, both of which are soluble in water, and the salt solution has green fluorescence.
Uses
2-Naphthylamine-5,7-disulfonic acid is an intermediate for the preparation of J acid, bis-J acid, phenyl J acid and scarlet acid.
Hazard
Skin - Rabbit 2 mg/24h severe; Eye - Rabbit 0.75 mg/24h severe
Flammability and Explosibility
Not classified
Synthesis
2-Naphthylamine-5,7-disulfonic acid can be obtained by hydrolysis of 2-naphthylamine-1,5,7-trisulfonic acid. Add sulfuric acid, sodium sulfate and 2-naphthylamine-1,5,7-trisulfonic acid into water, keep warm at 110-120°C for 4 hours, cool and filter, and wash in sodium sulfate solution to obtain the product.
2-Naphthylamine-5,7-disulfonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 2-Naphthylamine-5,7-disulfonic acid manufacturers
- Product
- 2-Naphthylamine-5,7-disulfonic acid 118-33-2
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 99.0%+
- Supply Ability
- 100 tons
- Release date
- 2019-12-30
- Product
- 2-Naphthylamine-5,7-disulfonic acid 118-33-2
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- Min98% HPLC
- Supply Ability
- g/kg/ton
- Release date
- 2020-01-28