Name | 1-Naphthylamine-7-Sulfonic Acid |
Synonyms | C.I. 26135 Cleves acid Cleves acid 1,7 1,7-Cleve's acid SODIUM NAPTHIONATE TIMTEC-BB SBB000621 SODIUM NAPHTHIONATE NAPHTHIONIC ACID SODIUM SALT PARA-NAPHTHIONIC ACID, NA SALT 1-Naphthylamine-7-Sulfonic Acid 1-Naphthylamine-7- sulfonic acid 8-Amino-2-naphtalenesulfonic acid 8-Aminonaphthalene-2-sulfonic acid SODIUM 1-NAPHTHYLAMINE-4-SULFONATE NAPHTHIONIC ACID SODIUM SALT 0.5-WATER NAPHTHYLAMINE-4-SULFONIC ACID SODIUM SALT |
CAS | 119-28-8 |
EINECS | 204-311-4 |
InChI | InChI=1/C10H9NO3S/c11-10-3-1-2-7-4-5-8(6-9(7)10)15(12,13)14/h1-6H,11H2,(H,12,13,14) |
InChIKey | QEZZCWMQXHXAFG-UHFFFAOYSA-N |
Molecular Formula | C10H9NO3S |
Molar Mass | 223.25 |
Density | 1.3588 (rough estimate) |
Melting Point | ≥300°C(lit.) |
Boling Point | 220°C (rough estimate) |
Appearance | Yellow to gray to brown powder |
Merck | 14,2351 |
BRN | 2115629 |
pKa | pK1: 3.66 (25°C) |
Storage Condition | Sealed in dry,Room Temperature |
Refractive Index | 1.6500 (estimate) |
MDL | MFCD00004032 |
Physical and Chemical Properties | Trait light gray crystals. solubility insoluble in water, ethanol, ether. Soluble in lye. |
Use | It is mainly used for the preparation of direct Fast Blue B2R, BGL, gray LBN, Brown RTL, direct black FF and sulfide salt CD, etc. |
Hazard Symbols | C - Corrosive |
Risk Codes | 34 - Causes burns |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
UN IDs | UN 2585 8/PG 3 |
WGK Germany | 2 |
TSCA | Yes |
HS Code | 29214500 |
Hazard Class | 8 |
Packing Group | III |
Raw Materials | Titanium(IV) oxide Sulfuric acid Iron Nitric acid |
NIST chemical information | Information provided by: webbook.nist.gov (external link) |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
application | is mainly used for the preparation of direct sun-resistant blue B2R, BGL, gray LBN, brown RTL, direct black FF, sulfide salt CD, etc. this product is a dye intermediate and is used to manufacture direct sun-resistant blue B2RL, direct sun-resistant red brown RTL, sulfide blue CV and other dyes. |
production method | is obtained by sulfonation, nitration, neutralization, reduction and acidification of naphthalene. |