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Manufacturer for trimesoyl chloride - J acid ( 2-Amino-5-naphthol-7-sulfonic Acid ) CAS 87-02-5 EINECS No.: 201-718-9 – Mit-ivy

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Manufacturer for trimesoyl chloride - J acid ( 2-Amino-5-naphthol-7-sulfonic Acid ) CAS 87-02-5 EINECS No.: 201-718-9 – Mit-ivy Detail:

J acid Typical Properties

Items Specifications
Content ≥90%
Gamma Acid ≤0.15%
Insoluble ≤0.20%

 

Items Specification
Appearance Grey to light brown powder
Content (dry) ≥90.0%
Purity (HPLC) ≥97.0%
Gamma Acid content ≤1.50%
Bis J Acid content ≤0.20%
Water ≤1.0%
2-Naphthylamine ≤100ppm

 

 

Used to be made from β-naphthylamine. Because of the strong carcinogenicity of β-naphthylamine, this production method has been eliminated, and now 2-naphthylamine-1-sulfonic acid is used as raw material to produce J acid. After sulfonation and hydrolysis, 2-naphthalic acid-5-dimethyl 7-disulfonate monosodium salt (amino J acid) was obtained, which was then neutralized, fused by alkali and acidified. J acid was obtained by sulfonation with fuming sulfuric acid, hydrolysis, absorption, washing, alkali solution and acidizing washing. The sodium salt dissolves in water and shows blue fluorescence. It is co-heated with ferric trichloride solution to form brown-black precipitation.

Chemical property

1. J acid co-heated with ferric chloride solution to form dark brown precipitate; calcium chloride to form yellowish brown precipitate; base sodium salt dissolved in water showed blue fluorescence.

2. Avoid inhaling dust from this product and avoid contact with eyes and skin.

3. poisonous. Rats were given oral LD50:11500mg/kg. Toxic or strongly corrosive raw materials such as 2-aminonaphthalene sulfonic acid, fuming concentrated sulfuric acid and caustic soda are used in production.

Applications

Dye intermediates. It is mainly used to prepare direct green lotus R, direct fast blue FRL, direct fast ash 2BL, direct copper salt blue 2R, direct acid resistant purple, direct pink, direct copper dye navy, fast blue B2R, direct jujube GB, as well as reactive scarlet, orange, brilliant orange X-GN, gray, grass green, red brown and other dyes. It is also used to prepare double J acid, scarlet acid and phenyl J acid.

storage and packing

Packaging Details:25kg/bag

It should be sealed and protected from light. Store in a dry, clean house to prevent exposure to sunlight and rain. When placed, the mouth of the box (drum) should be upward to avoid leakage of the product.

others name:J acid;2-amino-5-naphthol-7-sulfonic acid; 6-amino-1-naphthol-3-sulfonic acid


Product detail pictures:

Manufacturer for trimesoyl chloride - J acid ( 2-Amino-5-naphthol-7-sulfonic Acid ) CAS 87-02-5 EINECS No.: 201-718-9 – Mit-ivy detail pictures

Manufacturer for trimesoyl chloride - J acid ( 2-Amino-5-naphthol-7-sulfonic Acid ) CAS 87-02-5 EINECS No.: 201-718-9 – Mit-ivy detail pictures

Manufacturer for trimesoyl chloride - J acid ( 2-Amino-5-naphthol-7-sulfonic Acid ) CAS 87-02-5 EINECS No.: 201-718-9 – Mit-ivy detail pictures

Manufacturer for trimesoyl chloride - J acid ( 2-Amino-5-naphthol-7-sulfonic Acid ) CAS 87-02-5 EINECS No.: 201-718-9 – Mit-ivy detail pictures

Manufacturer for trimesoyl chloride - J acid ( 2-Amino-5-naphthol-7-sulfonic Acid ) CAS 87-02-5 EINECS No.: 201-718-9 – Mit-ivy detail pictures

Manufacturer for trimesoyl chloride - J acid ( 2-Amino-5-naphthol-7-sulfonic Acid ) CAS 87-02-5 EINECS No.: 201-718-9 – Mit-ivy detail pictures


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As for competitive selling prices, we believe that you will be searching far and wide for anything that can beat us. We will state with absolute certainty that for such excellent at such charges we are the lowest around for Manufacturer for trimesoyl chloride - J acid ( 2-Amino-5-naphthol-7-sulfonic Acid ) CAS 87-02-5 EINECS No.: 201-718-9 – Mit-ivy , The product will supply to all over the world, such as: Denmark, Montpellier, Korea, We strive for excellence, constant improvement and innovation, is committed to make us the "customer trust" and the "first choice of engineering machinery accessories brand" suppliers. Choose us, sharing a win-win situation!
Products and services are very good, our leader is very satisfied with this procurement, it is better than we expected,
5 Stars By Olga from Latvia - 2017.12.31 14:53
We are really happy to find such a manufacturer that ensuring product quality at the same time the price is very cheap.
5 Stars By Prudence from Luxemburg - 2018.02.04 14:13
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