A4716131
Eriochrome black T , 1%（w/w）inSodiumchloride , 1787-61-7
Synonym(s):
Chrome black T, 2-Hydroxy-1-(1-hydroxy-2-naphthylazo)-6-nitronaphthalene-4-sulfonic acid sodium salt;Eriochrome black T (C.I. 14645);Mordant Black 11
CAS NO.：1787-61-7
Empirical Formula: C20H12N3NaO7S
Molecular Weight: 461.38
MDL number: MFCD00003935
EINECS: 217-250-3
| Pack Size | Price | Stock | Quantity |
| 100g | RMB127.20 | In Stock |
|
| 500G | RMB375.20 | In Stock |
|
| others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
| Density | 1.109 g/mL at 25 °C |
| bulk density | 400-600kg/m3 |
| Flash point: | 185 °C |
| storage temp. | room temp |
| solubility | 50g/l |
| Colour Index | 14645 |
| form | Powder/Solid |
| pka | pK1:6.3;pK2:11.55 (25°C) |
| Specific Gravity | 1.109 |
| color | Brownish-black to black |
| PH | 3.7 (10g/l, H2O, 20℃) |
| Odor | Odorless |
| Water Solubility | 50 g/L (20 ºC) |
| λmax | 612-616 nm (buffer pH 10.0) |
| Merck | 14,3667 |
| BRN | 4121162 |
| Stability: | Stable. Incompatible with strong oxidizing agents, strong reducing agents. |
| Major Application | diagnostic assay manufacturing hematology histology |
| InChI | 1S/C20H13N3O7S.Na/c24-17-10-18(31(28,29)30)15-9-12(23(26)27)6-7-14(15)19(17)22-21-16-8-5-11-3-1-2-4-13(11)20(16)25;/h1-10,24-25H,(H,28,29,30);/q;+1/p-1/b22-21+; |
| InChIKey | AMMWFYKTZVIRFN-QUABFQRHSA-M |
| SMILES | [Na+].Oc1cc(c2cc(ccc2c1\N=N\c3ccc4ccccc4c3O)[N+]([O-])=O)S([O-])(=O)=O |
| CAS DataBase Reference | 1787-61-7(CAS DataBase Reference) |
| EPA Substance Registry System | C.I. Mordant Black 11, monosodium salt (1787-61-7) |
Description and Uses
Eriochrome black T is used as an indicator in analytical chemistry. It is also used in the detection of rare earth metals. It finds application in dyeing and printing of wool fabric, dyeing of silk and nylon as well as in leather dyeing. It can be used in the spectrophotometric determination of diphenhydramine hydrochloride in pharmaceutical preparations. As a complexometric indicator, it is useful in the determination of hardness of water.
Safety
| Symbol(GHS) |  GHS09 |
| Signal word | Danger |
| Hazard statements | H411 |
| Precautionary statements | P273-P391-P501 |
| PPE | Eyeshields, Gloves, type N95 (US) |
| Hazard Codes | Xi |
| Risk Statements | 36-36/37/38-36/38 |
| Safety Statements | 39-26-37/39-24/25 |
| RIDADR | 3077 |
| WGK Germany | 2 |
| RTECS | QK2197000 |
| TSCA | TSCA listed |
| HazardClass | 6.1 |
| PackingGroup | III |
| HS Code | 32041900 |
| Storage Class | 11 - Combustible Solids |
| Hazard Classifications | Aquatic Chronic 2 Eye Irrit. 2 |
| Toxicity | LD50 oral in rat: 17590mg/kg |
