PERI ACID (8-AMINONAPHTHALENE-1-SULPHONIC ACID)

PERI ACID
PRODUCT IDENTIFICATION
CAS NO.	82-75-7
EINECS NO.	201-437-1
FORMULA	C₁₀H₉NO₃S
MOL WT.	223.25
H.S. CODE
TOXICITY
SYNONYMS	8-Aminonaphthalene-1-sulphonic acid;
1-Naphthylamine-8-sulfonic Acid; 1-Amino-8-naphthalenesulfonic acid;
SMILES
CLASSIFICATION
PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE	gray to reddish wet powder
MELTING POINT
BOILING POINT
SPECIFIC GRAVITY
SOLUBILITY IN WATER
AUTOIGNITION
pH
VAPOR DENSITY
NFPA RATINGS
REFRACTIVE INDEX
FLASH POINT
STABILITY	Stable under ordinary conditions.
GENERAL DESCRIPTION & APPLICATIONS
Naphthylamine is an aromatic amine which can be obtained from nitronaphthalene (with iron and hydrochloric acid) or naphthol with sodium acetate, ammonium chloride. There are position isomers; 1-naphthylamine and 2-naphthylamine. 2-Naphthylamine was used as an Intermediate for wide application target molecules including dyestuffs, agrochemicals, and antioxidants. But its use is restricted or prohibited due to cancer suspect. Naphthylamine is the naphthalene homologues of aniline. Naphthylamine is the starting material in the dye manufacturing and rubber industry. Numerous sulfo- and nitro-group substituted naphthylamine on the ring system offer important roles to each characteristic colours directly and in preparing next target colorants. Phenyl group substituted naphthylamines are naphthalene homologues of phenylenediamines used as parent compounds in vulcanization accelerators and in antioxidants for rubber industry. Naphthylamine can be oxidized by chromic acid into naphthoquinone which is the fundamental ring structure related with vitamin K. Tetrahydronaphthylamine can be oxidized by potassium permanganate into adipic acid. Naphthyl structure is found as a ligand in transition-metal catalyts particularly in the form of bi-naphthyl which is composed of two naphthyl rings connected at one carbon site on each ring. Sulfonic acid is a compound with general formula RSO₂OH, where R is an aliphatic or aromatic hydrocarbon. It is a derivative of sulfuric acid (HOSO₂OH) where an OH has been replaced by a carbon group or a compound where a hydrogen atom has been replaced by treatment with sulfuric acid; for example, benzene is converted to benzenesulfonic acid (water-soluble). Sulfonic acid has a sulfur atom bonded to a carbon atom of a hydrocarbon and bonded also to three oxygen atoms, one of which has been attached to a hydrogen atom. Sulfonic acid is acidic due to the hydrogen atom, stronger than a carboxylic acid. Sulfonic acid is one of the most important organo sulfur compounds in organic synthesis. Sulfonic acids are used as catalysts in esterification, alkylation and condensation reactions. Sulfonates are salts or esters of sulfonic acid. Sulfonic salts are soluble in water. Sulfonic acid and its salts present in organic dyes provide useful function of water solubility and or improve the washfastness of dyes due to their capability of binding more tightly to the fabric. Peri Acid (1-naphthylamine-8-sulfonic Acid) is used directly in making several dyes and converted into numerous dye intermediates, as well as into tanning agents.
SALES SPECIFICATION
APPEARANCE	gray to reddish wet powder
DIAZO CONTENT	90% in (dry basis)
TRANSPORTATION
PACKING	50kgs in drum
HAZARD CLASS	6.1 (Packing Group: III)
UN NO.	2811
OTHER INFORMATION
`Hazard Symbols: XI, Risk Phrases:` 36/37/38, `Safety Phrases:` 26-36
`PRICE`