Acid Black 2
- CAS No.
- 8005-03-6
- Chemical Name:
- Acid Black 2
- Synonyms
- NIGROSINE;GRAY B;GRAY R;GRAY BB;NIGROSIN;CI 50420;NEGROSINE;NIGROSENE;ACID BLACK;STEEL GRAY
- CBNumber:
- CB9761571
- Molecular Formula:
- NULL
- Molecular Weight:
- 0
- MDL Number:
- MFCD00044681
- MOL File:
- Mol file
- MSDS File:
- SDS
- TDS File:
- TDS
| storage temp. | Store at RT. |
|---|---|
| solubility | H2O: soluble |
| Colour Index | 50420 |
| form | powder |
| color | Red-black to black |
| Water Solubility | SOLUBLE |
| λmax | 570 nm |
| Stability | Stable. Combustible. Incompatible with strong oxidizing agents. |
| Biological Applications | Diagnostic assay; rodenticide |
| Cosmetics Ingredients Functions | COLORANT |
| LogP | 1.468 (est) |
| EWG's Food Scores | 1 |
| EPA Substance Registry System | C.I. Acid Black 2 (8005-03-6) |
| UNSPSC Code | 12352207 |
| NACRES | NA.75 |
SAFETY
Risk and Safety Statements
| Hazard Codes | Xi,T | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Risk Statements | 43-45 | |||||||||
| Safety Statements | 36/37-24/25-24-22-45-53 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | GC4762250 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 32041200 | |||||||||
| Storage Class | 13 - Non Combustible Solids | |||||||||
| Hazardous Substances Data | 8005-03-6(Hazardous Substances Data) | |||||||||
| NFPA 704 |
|
Acid Black 2 price More Price(15)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | N4754 | Nigrosin water soluble Foruseasabiologicalstain | 8005-03-6 | 100g | $96.4 | 2026-04-30 | Buy |
| Sigma-Aldrich | 198285 | Nigrosin certified by the BSC | 8005-03-6 | 25 g | $36.3 | 2026-04-30 | Buy |
| Sigma-Aldrich | 43925 | Nigrosin Stain solution suitable for microscopy | 8005-03-6 | 100 mL | $64.9 | 2026-04-30 | Buy |
| Sigma-Aldrich | 198285 | Nigrosin certified by the BSC | 8005-03-6 | 100 g | $118 | 2026-04-30 | Buy |
| TCI Chemical | N0782 | Nigrosine (Water soluble) | 8005-03-6 | 25g | $19 | 2026-04-30 | Buy |
Acid Black 2 Chemical Properties,Uses,Production
Chemical Properties
black crystals or powder
Uses
It is employed as a common biological stain for tissues and cells. Used to make inks and shoe-polish and for dyeing leather, wood, textiles, and plastics. The crude mixture of nigrosine hydrochlorides (Phenol Black L) is used to dye phenolic resins. Bases are used to make printing colors and to dye plastics. It finds its use in Dorners spore stain, as a negative stain in place of India ink for spirochetes, bacteria, protozoa and fungi. It is also used in compounding resins include phenolic resins, styrenics, polyamides and urea resins.
Definition
ChEBI: Amido Black 10B is an organic sodium salt resulting from the formal condensation of Amido Black 10B (acid form) with two equivalents of sodium hydroxide. It has a role as a histological dye. It contains a 4-amino-5-hydroxy-3-[(p-nitrophenyl)azo]-6-(phenylazo)-naphthalene-2,7-disulfonate.
Preparation
will all grades of alcohol solution aniline Black (C.I.Solvent Black 5, C.I. 50415) stlfonation, again into their products for all kinds of sodium salt.
Properties and Applications
black. Black with flash in the granular, a violet is soluble in water, soluble in ethanol is blue. The strong sulfuric acid dyes is blue, it will be diluted and the generated purple precipitation. Blue light purple in aqueous solution, and sodium hydroxide show dark purple precipitation. Mainly used for leather dyeing. Also applies to paper, wood, soap, electrical-controlled aluminum, wool and silk dyeing of content, but also can be used in the manufacture of ink.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 5 | 4 | 4 | |||||
Acid Black 2 Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Winchem Industrial Co. Ltd | 0574-83851061 | info@win-chemical.com | China | 500 | 55 |
| Sichuan Kulinan Technology Co., Ltd | 400-1166-196 18981987031 | cdhxsj@163.com | China | 11674 | 57 |
| Tianjin heowns Biochemical Technology Co., Ltd. | 400 638 7771 | sales@heowns.com | China | 14412 | 57 |
| Sinopharm Chemical Reagent Co,Ltd. | 86-21-63210123 | sj_scrc@sinopharm.com | China | 9791 | 79 |
| Maya High Purity Chemicals | +86 (573) 82222445 (0)18006601000 452520369 | sales@maya-r.com | China | 11693 | 57 |
View Lastest Price from Acid Black 2 manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-09-11 | Acid Black 2
8005-03-6
|
25kg | 1 | 20MT | Winchem industrial co limited | ||
 |
2026-05-28 | Acid black 2
8005-03-6
|
$15.00 | 1KG | 100% | 5000 | Hebei Chuanghai Biotechnology Co,.LTD | |
 |
2022-10-28 | Nigrosine Black, Acid Black 2
8005-03-6
|
$3.00 | 25kg | 99% | 20 tons | TIANJIN XIANGRUI DYESTUFF CO.,LTD |
-
- Acid Black 2
8005-03-6
- $0.00
- 1
- Winchem industrial co limited
-
- Acid black 2
8005-03-6
- $15.00
- 100%
- Hebei Chuanghai Biotechnology Co,.LTD
-
- Nigrosine Black, Acid Black 2
8005-03-6
- $3.00
- 99%
- TIANJIN XIANGRUI DYESTUFF CO.,LTD
