1-Diazo-2-naphthol-4-sulfonic acid

Min.Order / FOB Price:Get Latest Price

25 Kilogram	FOB Price:USD 4.0000 -4.1000

25 Kilogram

FOB Price:USD 4.0000 -4.1000

Min.Order :25 Kilogram
Purity: 98.50%
Payment Terms : L/C,D/A,D/P,T/T,Other

Keywords

1-Diazo-2-naphthol-4-sulfonic acid 3-diazo-3,4-dihydro-4-oxonaphthalene-1-sulphonic acid 1,2,4-diazo acid

Quick Details

Appearance:Light yellow or brown crystalline
Application:Used in the production of acid and neutral dyes, including Acidic Blue 193, Acidic Blue 90, Neutral Blue 348, etc. To synthesize acidic mordant dyes, azo dyes & n-Nitro-1,2,4-Diazo Acid(n=6, 8…)
PackAge:25kg or 40kg net fiber drum or bag
ProductionCapacity:25|Metric Ton|Day
Storage:Keep in cool and dry place. Protect from contact with metal
Transportation:Hazardous/danger Class:4.1

Superiority:

High assay: standard:78%min. max. 85% Chinese No.1

Not caking

Details:

Identification:
Product: 1-Diazo-2-naphthol-4-sulfonic acid
Synonym: 1,2,4-diazo acid
EC Name: 3-diazo-3,4-dihydro-4-oxonaphthalene-1-sulphonic acid
IUPAC Name:
CAS: 20680-48-2 (or 887-76-3)
EINECS: 243-965-5 (or 212-958-9)
Molecular Formula: C₁₀H₆N₂O₄S (or C₁₀H₈N₂O₄S)
Formula Weight: 250.23
Category: Intermediates of Dyes and Pigments

Properties:
Appearance: Light yellow or brown crystalline
Melting point: 168℃ for its sodium salt.

Specification:
Appearance: Light yellow or brown crystalline
Purity (HPLC): 98.50% Min.
Assay: 78.00% Min.
Free acid: 5.00% Max.
Insoluble: 0.20% Max.

Applications:
Used in the production of acid and neutral dyes, including Acidic Blue 193, Acidic Blue 90, Neutral Blue 348, etc.
To synthesize acidic mordant dyes, azo dyes & n-Nitro-1,2,4-Diazo Acid(n=6, 8…)

Packing:
40kg woven bag with black inner PE bag   20.8mt per container max.
25kg woven bag with black inner PE bag 20.8mt per container max.
25kg cylindrical fiber drum with black inner PE bag 11.25mt per container max.
25kg square fiber drum with black inner PE bag        13.50mt per container max.

Dangerous classification:
Before European REACH: Class:4.1   UN No.: 2925 Packing group: II
Before European REACH: Class:4.1   UN No.: 3236 Packing group: II

Documents:
Typical CoA
MSDS/SDS(Material Safety Data Sheet): Simply Version REACH Version

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