ChemicalBook >> CAS DataBase List >>BUFFER SOLUTION
BUFFER SOLUTION
- CAS No.
- 53744-42-6
- Chemical Name:
- BUFFER SOLUTION
- Synonyms
- PBS;BUFFER;PHOSPHATE BUFFER SOLUTION;PHOSPHATE BUFF, PH 7.5;BUFFER O;BUFFER, PH 1.2;BUFFER, PH 2.5;BUFFER, PH 7.5;BUFFER, PH 1.0;BUFFER SOLUTION
- CBNumber:
- CB9340936
- Molecular Formula:
- C24H17N2NaO6S2
- Molecular Weight:
- 516.52
- MDL Number:
- MFCD00038854
- MOL File:
- 53744-42-6.mol
Last updated:2025-01-27 09:38:02
| Melting point | 300 °C |
|---|---|
| Density | 1.006 g/mL at 20 °C |
| vapor density | 4.9 (vs air) |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | H2O: soluble |
| form | Liquid |
| color | No Color |
| PH | 6.8 (20°C in H2O) |
| Exposure limits |
ACGIH: TWA 2.5 mg/m3 NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3 |
| EPA Substance Registry System | Benzenesulfonic acid, 4,4'-(1,10-phenanthroline-4,7-diyl)bis-, disodium salt (53744-42-6) |
| UNSPSC Code | 41116121 |
| NACRES | NA.23 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P305+P351+P338 | |||||||||
| Hazard Codes | Xi,C | |||||||||
| Risk Statements | 36/38-36/37/38-36-52/53-35-67 | |||||||||
| Safety Statements | 26-36-24/25-37/39-61-45-36/37/39 | |||||||||
| RIDADR | UN2817 | |||||||||
| WGK Germany | 3 | |||||||||
| F | 8-10 | |||||||||
| HS Code | 2933.99.8210 | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | III | |||||||||
| NFPA 704 |
|
BUFFER SOLUTION price More Price(46)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TCI Chemical | B0989 | Bathophenanthrolinedisulfonic Acid Disodium Salt Hydrate[for Determination of Ferrous Ion] | 53744-42-6 | 1g | $203 | 2024-03-01 | Buy |
| Alfa Aesar | 044627 | Buffer HF-Improved | 53744-42-6 | 250ml | $29.7 | 2023-06-20 | Buy |
| Alfa Aesar | 044627 | Buffer HF-Improved | 53744-42-6 | 1L | $72.3 | 2023-06-20 | Buy |
| GFS CHEMICALS | 18364 | BUFFERPH12.45 | 53744-42-6 | 6x500mL | $82.07 | 2021-12-16 | Buy |
| GFS CHEMICALS | 18393 | BUFFERPH3.00 | 53744-42-6 | 6x500mL | $82.07 | 2021-12-16 | Buy |
BUFFER SOLUTION Chemical Properties,Uses,Production
Uses
Used for pretreatment of planar silicon devices when plating with Nickel plating solution products 44069 and 44070.
Uses
Use of Buffer HF improved:
Buffer HF improved dissolves silica films (both thermally grown and silane SiO2) produced on the surfaces of silicon and exposed by photolithography. It also is capable of dissolving doped silica films such as phosphosilica and borosilica glasses as formed in semiconductor processing.
The overall chemical reaction is: 4HF + SiO2 SiF4 + 2H2O
For trouble-free operation Buffer HF improved is recommended in the new technologies for manufacture of semiconductor planar and mesa devices. It is compatible with both negative and positive photoresists. Excellent results with good reproducibility are simple to achieve without undercutting marked oxides, surface staining or device degradation by metallic impurities.
Uses
Use of Buffer HF improved:
- Buffer HF improved dissolves silica films (both thermally grown and silane SiO2) produced on the surfaces of silicon and exposed by photolithography. It also is capable of dissolving doped silica films such as phosphosilica and borosilica glasses as formed in semiconductor processing. The overall chemical reaction is: 4HF + SiO2 SiF4 + 2H2O
- For trouble-free operation Buffer HF improved is recommended in the new technologies for manufacture of semiconductor planar and mesa devices. It is compatible with both negative and positive photoresists. Excellent results with good reproducibility are simple to achieve without undercutting marked oxides, surface staining or device degradation by metallic impurities.
Definition
ChEBI: Disodium 4,7-diphenyl-1,10-phenanthroline 4',4''-disulfonate is an organic sodium salt having 4,7-diphenyl-1,10-phenanthroline 4',4''-disulfonate as the counterion. It has a role as an iron chelator. It contains a 4,7-diphenyl-1,10-phenanthroline 4',4''-disulfonate.
General Description
Improved HF Buffer System with stabilized HF activity - selective solvent for SiO2 used in semiconductor technology of planar passivated devices - transistors, integrated circuits, diodes, rectifiers, SCR, MOS, FET
Advantages:
- Ready-to-use - Economical
- HF activity buffer stabilized
- Excellent process reproducibility
- Does not undercut masked oxide
- Will not stain diffused silicon surfaces
- Avoids contamination on silicon surfaces
- Photoresist coating unaffected
Buffer HF improved is an idealized buffer preparation characterized by a high buffer index and an optimized, uniform oxide-etch rate. The composition of buffer HF improved is precisely controlled by HF activity measurements and electrometric pH. The mass balance corresponds essentially to (HF) + (F) + 2(HF2) for a two-ligand mononuclear complex and the charge balance is (H+) - (F) + (HF2- ). The HF activity is maintained constant through the specific equilibrium constant which regulates the equilibrium reaction between fluoride, bifluoride, and HF buffer components. A second equilibrium constant participates in the regulation of the hydronium in concentration of pH.
Buffer HF improved is produced and analyzed to be essentially free of impurities. Nitrate ions, a common impurity causing stains on diffused silicon surfaces, are specifically removed. Heavy metal impurities, which can lead to degradation of device characteristics, are rigidly controlled under manufacturing process specifications.
BUFFER SOLUTION Preparation Products And Raw materials
Raw materials
Preparation Products
BUFFER SOLUTION Suppliers
Global( 135)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shenzhen Nexconn Pharmatechs Ltd | +86-755-89396905 +86-15013857715 | admin@nexconn.com | China | 10406 | 58 |
| Accela ChemBio Inc. | +1-858-6993322 | info@accelachem.com | United States | 20078 | 58 |
| Shenyang Simchoice Chemical Co.,Ltd | +86-024-23769576 +86-15040101888 | sales@simchoicechem.com | China | 254 | 58 |
| Zhengzhou Alfa Chemical Co.,Ltd | +8618530059196 | sale04@alfachem.cn | China | 12226 | 58 |
| Career Henan Chemica Co | +86-0371-86658258 +8613203830695 | laboratory@coreychem.com | China | 30230 | 58 |
| ANHUI WITOP BIOTECH CO., LTD | +8615255079626 | eric@witopchemical.com | China | 23541 | 58 |
| Dideu Industries Group Limited | +86-29-89586680 +86-15129568250 | 1026@dideu.com | China | 22855 | 58 |
| Nanjing Duly Biotech Co.,Ltd | +undefined18013301590 | doris@njduly.com | China | 2450 | 58 |
| SUZHOU SENFEIDA CHEMICAL CO.,LTD | +86-0512-83500002 +8618501500038 | 3899766280@qq.com | China | 26362 | 58 |
| Shanghai Acmec Biochemical Technology Co., Ltd. | +86-18621343501; +undefined18621343501 | product@acmec-e.com | China | 33338 | 58 |
53744-42-6(BUFFER SOLUTION)Related Search:
Magnesium sulfate
4-METHYL-1,10-PHENANTHROLINE
TRIS(BATHOPHENANTHROLINEDISULFONATE)RUTH
4-Phenylpyridine
Pyridinium p-Toluenesulfonate
4,7-Dimethyl-1,10-phenanthroline
Bathophenanthroline
BUFFER SOLUTION
1,10-Phenanthroline hydrate
PH STANDARD SOLUTION PHTHALATE BUFFER
BUFFER SOLUTION, PH 10.00 +/-0.02, BLUE,BUFFER SOLUTION, PH 10.00 +/-0.02, COLORLESS, CARBONATE,BUFFER SOLUTION PH 10.00
BUFFER SOLUTION PH 7.00
BUFFER SOLUTION PH 5.00,BUFFER SOLUTION PH 5.00
Buffer solution, pH 4.00 (^+0.01 @ 25^oC), Colored Red, Specpure|r, NIST Traceable
Buffer solution, pH 1.00 (±0.01 at 25°C), No Color, Specpure, NIST Traceable
1of4
1,10-Phenanthroline,4,7-di(phenylsulfonicacid)-,disodiumsalt
4,4’-(1,10-phenanthroline-4,7-diyl)bis-benzenesulfonicacidisodiumsalt
4,7-di(4-Phenylsulfonicacid)-1,10-phenanthroline,disodiumsalt
Benzenesulfonicacid,4,4’-(1,10-phenanthroline-4,7-diyl)bis-,disodiumsalt
BATHOPHENANTHROLINEDISULFONIC ACID, DISODIUM SALT HYDRATE
BATHOPHENANTHROLINE DISULFONIC ACID NA2-SALT H20
PHOSPHATE BUFF, PH 7.2
BUFFER SOLUTION
dibenzenesulfonate
Sodium 4,4'-(1,10-phenanthroline-4,7-diyl)
4,7-DIPHENYL-1,10-PHENANTHROLINEDISULFONIC ACID, DISODIUM SALT HYDRATE
4,7-DIPHENYL-1,10-PHENANTHROLINE DISULFONIC ACID NA2-SALT H2O
4,4'-(1,10-Phenanthroline-4,7-diyl)bis(benzenesulfonic acid sodium) salt
4,7-Bis[4-(sodiosulfo)phenyl]-1,10-phenanthroline
Bathophenanthrolinedisulfonic acid disodium【Dotite】
disodium 4,4'-(1,10-phenanthroline-4,7-diyl)bis(benzenesulphonate)
BATHOPHENANTHROLINEDISULFONIC ACID DISODIUM SALT TRIHYDRATE 90+%
BATHOPHENANTHROLINEDISULFONIC ACID DISODIUM SALT HYDRATE, 98
BathophenanthrolineDisulphonicAcidDisodiumS.Gr
Bathophenanthrolinedisulfonicaciddisodiumsaltp.a.
Bathophenanthrolinesulfonatep.a.
BATHOPHENANTHROLINE SULFONATE, REAG.
BATHOPHENANTHROLINE, SULFONATED SODIUM SALT, REAGENT
Bathophenanthroline disulfonic acid-Na2-salt
4 7-DIPHENYL-1,10-PHENANTHROLINE DISULFONIC ACID DISODIUM SALT 99%
disodium 4-[7-(4-sulfonatophenyl)-1,10-phenanthrolin-4-yl]benzenesulfonate
4,4'-(1,10-phenanthroline-4,7-diyl)bis-Benzenesulfonic acid disodiuM salt
4,4`-(1,10-Phenanthroline-4,7-diphenyl)disulfonic acid disodiuM salt
Bathophenanthroline disulfonic acid-Na2-salt analytical grade
BATHOPHENANTHROLINE, SULFONATED, SODIUM SALT, REAGENTBATHOPHENANTHROLINE, SULFONATED, SODIUM SALT, REAGENTBATHOPHENANTHROLINE, SULFONATED, SODIUM SALT, REAGENT
4,7-Bis(4-sulfophenyl)-1,10-phenanthroline disodium salt
Bathophenanthroline disulphonic acid disodium salt, GR 99%+
PHOSPHATE BUFF, PH 7.5
PHOSPHATE BUFFER SOLUTION
PBS
Sodium 4,4'-(1,10-phenanthroline-4,7-diyl)dibenzenesulfonate
Bathophenthroline Disulphonic Acid Disodium Salt 99% AR
BUFFER O
BUFFER, PH 4.01
BUFFER PH 4.0 RED
BUFFER, PH 1.2
BUFFER, PH 12.00
BUFFER, PH 12.45
BUFFER, PH 12.72
BUFFER, PH 1.68
BUFFER, PH 2.00
BUFFER, PH 2.5
'COLOURKEY' BUFFER PH 10.0 (BLUE)
'COLOURKEY' BUFFER PH 4.0 (RED)
'COLOURKEY' BUFFER PH 7.0 (YELLOW)
BUFFER SOLUTION PH 6.79
BUFFER SOLUTION PH 6.86
BUFFER SOLUTION PH 6.865
BUFFER SOLUTION PH 5.00
BUFFER SOLUTION PH 7.413
BUFFER SOLUTION, PH 7.2, PHOSPHATE
BUFFER SOLUTION PH 8.00
BUFFER SOLUTION, PH 9.0