China (Mainland)
1-Diazo-2-naphthol-4-sulfonic acid CAS NO.20680-48-2
- FOB Price: USD: 4.00-4.10 /Metric Ton Get Latest Price
- Min.Order: 25 Kilogram
- Payment Terms: L/C,D/A,D/P,T/T,MoneyGram,Other
- Available Specifications:
78%(1-10)Metric Ton78%(10-20)Metric Ton
- Product Details
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
- ProName: 1-Diazo-2-naphthol-4-sulfonic acid
- CasNo: 20680-48-2
- Molecular Formula: C10H6N2O4S
- Appearance: Light yellow or brown crystalline
- Application: Used in the production of acid and neu...
- DeliveryTime: immediately
- PackAge: 25kg or 40kg net fiber drum or bag
- Port: Shanghai or Qingdao, China
- ProductionCapacity: 25 Metric Ton/Day
- Purity: 98.50%
- Storage: Keep in cool and dry place. Protect fr...
- Transportation: Hazardous/danger Class:4.1
- LimitNum: 25 Kilogram
- Appearance: Light yellow or brown crystalline
- Purity (HPLC): 98.5%min.
- Assay: 78%min.
- Free acid: 5.0%max.
- Insoluble: 0.20%max.
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