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BUFFER SOLUTION

BUFFER SOLUTION structure

CAS No.: 53744-42-6

Chemical Name:: BUFFER SOLUTION

Synonyms: BUFFER;PHOSPHATE BUFF, PH 7.5;BUFFER O;BUFFER, PH 7.5;BUFFER, PH 1.2;BUFFER, PH 2.5;BUFFER, PH 1.0;BUFFER SOLUTION;BUFFER, PH 1.07;BUFFER, PH 5.00

CBNumber:: CB9340936

Molecular Formula:: C24H17N2NaO6S2

Molecular Weight:: 516.52

MDL Number:: MFCD00038854

MOL File:: 53744-42-6.mol

Last updated:2026-01-13 11:26:55

Product description	Number	Pack Size	Price
Bathophenanthrolinedisulfonic Acid Disodium Salt Hydrate[for Determination of Ferrous Ion]	B0989	1g	$203
BUFFERPH12.45	18364	6x500mL	$82.07
BUFFERPH3.00	18393	6x500mL	$82.07
BUFFERPH9.00	18554	6x500mL	$82.07
BUFFERPH5.00	18435	6x500mL	$82.07

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BUFFER SOLUTION Properties

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
InChIKey	PRFSSHVTLYFZHN-UHFFFAOYSA-N
SMILES	S(C1C=CC(C2=CC=NC3=C4N=CC=C(C5C=CC(S(O)(=O)=O)=CC=5)C4=CC=C23)=CC=1)(O)(=O)=O.[NaH]
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

8-10

TSCA

TSCA listed

HS Code

2933.99.8210

HazardClass

PackingGroup

III

Storage Class

6.1B - Non-combustible acute toxic Cat. 1 and 2
very toxic hazardous materials

Hazard Classifications

Acute Tox. 1 Dermal
Acute Tox. 2 Inhalation
Acute Tox. 2 Oral
Eye Dam. 1
Skin Corr. 1A

NFPA 704

	0
4		1

BUFFER SOLUTION price More Price(48)

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	2025-07-31	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
GFS CHEMICALS	18554	BUFFERPH9.00	53744-42-6	6x500mL	$82.07	2021-12-16	Buy
GFS CHEMICALS	18435	BUFFERPH5.00	53744-42-6	6x500mL	$82.07	2021-12-16	Buy

Product number	Packaging	Price	Buy
B0989	1g	$203	Buy
18364	6x500mL	$82.07	Buy
18393	6x500mL	$82.07	Buy
18554	6x500mL	$82.07	Buy
18435	6x500mL	$82.07	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) + (HF^2- ). 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( 146)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Shenzhen Nexconn Pharmatechs Ltd	+86-755-89396905 +86-15013857715	admin@nexconn.com	China	10405	58
Accela ChemBio Inc.	+1-858-6993322	info@accelachem.com	United States	21193	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	11728	58
Career Henan Chemica Co	+86-0371-86658258 +8613203830695	laboratory@coreychem.com	China	30229	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	19681	58
Nanjing Duly Biotech Co.,Ltd	+undefined18013301590	doris@njduly.com	China	2448	58
SUZHOU SENFEIDA CHEMICAL CO.,LTD	+86-0512-83500002 +8618662433356	3899766280@qq.com	China	26362	58
Shanghai Acmec Biochemical Technology Co., Ltd.	+86-18621343501; +undefined18621343501	product@acmec-e.com	China	33325	58

Supplier	Advantage
Shenzhen Nexconn Pharmatechs Ltd	58
Accela ChemBio Inc.	58
Shenyang Simchoice Chemical Co.,Ltd	58
Zhengzhou Alfa Chemical Co.,Ltd	58
Career Henan Chemica Co	58
ANHUI WITOP BIOTECH CO., LTD	58
Dideu Industries Group Limited	58
Nanjing Duly Biotech Co.,Ltd	58
SUZHOU SENFEIDA CHEMICAL CO.,LTD	58
Shanghai Acmec Biochemical Technology Co., Ltd.	58

53744-42-6(BUFFER SOLUTION)Related Search:

Magnesium sulfate PH STANDARD SOLUTION PHTHALATE BUFFER 4-METHYL-1,10-PHENANTHROLINE TRIS(BATHOPHENANTHROLINEDISULFONATE)RUTH 4-Phenylpyridine

Pyridinium p-Toluenesulfonate 4,7-Dimethyl-1,10-phenanthroline Bathophenanthroline 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 BUFFER SOLUTION, PH 4.63,BUFFER SOLUTION, PH 4.0, ACETATE,BUFFER ACETATE,BUFFER ACETATE, PH 4.00 Potassium hydrogen phthalate

Sodium acetate trihydrate 1,10-Phenanthroline hydrate BUFFER SOLUTION

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 7.5 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】 BATHOPHENANTHROLINE, SULFONATED, SODIUM SALT, REAGENTBATHOPHENANTHROLINE, SULFONATED, SODIUM SALT, REAGENTBATHOPHENANTHROLINE, SULFONATED, SODIUM SALT, REAGENT 4,7-Bis(4-sulfophenyl)-1,10-phenanthroline disodium salt 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 disulphonic acid disodium salt, GR 99%+ Sodium 4,4'-(1,10-phenanthroline-4,7-diyl)dibenzenesulfonate Bathophenthroline Disulphonic Acid Disodium Salt 99% AR BUFFER SOLUTION PH 6.865 BUFFER TRIS ACN, EDTA, NACL SOLUTION BUFFER, HYDRION(TM), PH 8.00 +/- 0.02 BUFFER SOLUTION PH 11.00 BUFFER, PH 1.07 BUFFER O BUFFER, PH 12.72 BUFFER SOLUTION PH 6.79 BUFFER SOLUTION PH 6.86 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 BUFFER SOLUTION PH 9.180 BUFFER SOLUTION PH 9.22 BUFFER SOLUTION PH 9.00 BUFFER SOLUTION, PH 8.0 BUFFER TNE 10X SOLUTION BUFFER TABLETS, PH 7.2 BUFFER SOLUTION A BUFFER PHOSPHATE, PH 7.40 BUFFER POTASSIUM PHOSPHATE