331635

Tetramethylammonium hydroxide solution

25 wt. % in H2O

Manufacturer: Sigma Aldrich

CAS Number: 75-59-2

Synonym(S): TMAH solution

Select a Size

Pack Size SKU Availability Price
250 ML 331635-250-ML In Stock ₹ 5,347.55
1 L 331635-1-L In Stock ₹ 14,873.55

331635 - 250 ML

₹ 5,347.55

In Stock

Quantity

1

Base Price: ₹ 5,347.55

GST (18%): ₹ 962.559

Total Price: ₹ 6,310.109

vapor pressure

17.5 mmHg ( 20 °C)

Quality Level

200

form

liquid

concentration

25 wt. % in H2O

refractive index

n20/D 1.3806

density

1.016 g/mL at 25 °C

SMILES string

[OH-].C[N+](C)(C)C

InChI

1S/C4H12N.H2O/c1-5(2,3)4;/h1-4H3;1H2/q+1;/p-1

InChI key

WGTYBPLFGIVFAS-UHFFFAOYSA-M

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Description

  • General description: Tetramethylammonium hydroxide solution is commonly used as a strong base[1] and nucleophilic source in organic synthesis reactions[2].
  • Application: Tetramethylammonium hydroxide is a quaternary ammonium salt generally used as an anisotropic etchant for silicon due to its high silicon etching rate.[3][4]

SAFETY INFORMATION

Pictograms

GHS06,GHS08,GHS05,GHS09

Signal Word

Danger

Hazard Statements

H300 + H310,H314,H370,H372,H411

Precautionary Statements

P260 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 2 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Skin Corr. 1B - STOT RE 1 Dermal - STOT SE 1

Target Organs

Central nervous system, Liver,thymus

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves