Tetramethyl ammonium hydroxide (TMAH) 25%75-59-2
1 Inquiries
75-59-2
25%
SHANGHAI
wohing
200kg plastic drum or as customer request, 80 drums for 20'fcl
2025-02-07
Cationic,Anionic,Amphotric Surfactant,Benzalkonium chloride(BKC/BAC),Glutaraldehyde,Tetramethyl ammonium chloride(TMAC)
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Product Description
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Seller Information
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Inquiry History
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DescriptionBasic Info
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Product Name:
Tetramethylammonium hydroxide
Other Name:Methanaminium,N,N,N-trimethyl-,hydroxide (1:1);Ammonium,tetramethyl-,hydroxide;Tetramethylammonium hydroxide;Methanaminium,N,N,N-trimethyl-,hydroxide;NMD 3;TMAH;NMW-W;OCG 945;Megaposit CD 14;Tokuso SD 20;OCG-OPD 262;OPD 262;MF 321;TMAH 25;LDD 26W;AZ-MIF 300;AZ 726;AZ 726MIF;LDD 26;Microposit MF-CD 26;MF-CD 26;CD 26;Microposit CD 26;Megaposit MF 24A;MIF 726;AZ 300MIF;OCG 934;OPD 5262;AR 300-49;MF 24A;Microposit MF 321;PRS 2000;RD 6;RD 6 (developer);Tokuso SD 25;Microposit MF 319;MF 319;CPD 18;Photoresist ma-D 525;L 09658;78017-87-5;93615-68-0;104422-11-9;105468-35-7;117277-88-0;123626-97-1;129653-91-4;129654-61-1;143549-79-5;154636-59-6;195460-17-4;950683-29-1;1239135-84-2;2094630-69-8
CAS No.:75-59-2
Molecular Formula:C4H12N.HO
InChIKeys:InChIKey=WGTYBPLFGIVFAS-UHFFFAOYSA-M
Molecular Weight:91.15
Exact Mass:91.099716
BRN:3558708
EC Number:200-882-9
UNII:5GKP7317Q2
UN Number:1835
DSSTox ID:DTXSID3029108
Color/Form:The free base is known only in solution or as a solid pentahydrate, forming colorless, deliquescent needles|Liquid
HScode:29239000
Categories:
Characteristics-
PSA:
23.06000
XLogP3:0.14560
Appearance:APHA: ≤10 Solution
Density:0.866 g/mL at 25 °C
Melting Point:°C
Boiling Point:110 °C
Flash Point:80 °F
Refractive Index:n20/D 1.384
Water Solubility:soluble in water.
Storage Conditions:2-8°C
Vapor Pressure:17.5 mm Hg ( 20 °C)
Toxicity:Subcutaneous-Mouse LDL0: 19 mg/kg
Flammability characteristics:Vapor is toxic; burning emits toxic nitrogen oxides and ammonia fumes
Odor:Strong ammonia-like
Henrys Law Constant:Henry's Law constant = 4.35X10-16 atm-cu m/mol at 25 °C (est)
Experimental Properties:Decomposes to trimethylamine and methanol upon distillation|Readily absorbs CO2 from the air|When heated to decomposition it emits toxic fumes of NOx and NH3.|Concn: 25 wt% in water. VP: 17.5 mm Hg at 20 °C; Index of refraction: 1/3806 at 20 °C/D; density: 1.106 g/mL at 25 °C /Tetramethylammonium hydroxide solution/|Hydroxyl radical reaction rate constant = 5.06X10-12 cu cm/molec-sec at 25 °C (est)
Air and Water Reactions:It is soluble in water.
Reactive Group:Bases, Strong
Reactivity Profile:TETRAMETHYLAMMONIUM HYDROXIDE acts like a base. Bases are chemically similar to sodium hydroxide (NaOH) or sodium oxide (Na2O). They neutralize acids exothermically to form salts plus water. When soluble in water they give solutions having a pH greater than 7.0. Mixing these materials with water can generate troublesome amounts of heat as the base is dissolved or diluted. Bases react with certain metals (such as aluminum and zinc) to form oxides or hydroxides of the metal and generate gaseous hydrogen. Bases may initiate polymerization reactions in polymerizable organic compounds, especially epoxides). They may generate flammable and/or toxic gases with ammonium salts, nitrides, halogenated organics, various metals, peroxides, and hydroperoxides. Materials of this group often serve as catalysts.
Corrosivity:Corrosive
Hazard IdentificationClassification of the substance or mixture
Acute toxicity - Category 2, Oral
Acute toxicity - Category 1, Dermal
Skin corrosion, Sub-category 1B
Serious eye damage, Category 1
Specific target organ toxicity â single exposure, Category 1
Specific target organ toxicity â repeated exposure, Category 1
Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 2
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Danger
Hazard statement(s) H300 Fatal if swallowed
H310 Fatal in contact with skin
H314 Causes severe skin burns and eye damage
H370 Causes damage to organs
H372 Causes damage to organs through prolonged or repeated exposure
H411 Toxic to aquatic life with long lasting effects
Precautionary statement(s) Prevention P264 Wash ... thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P262 Do not get in eyes, on skin, or on clothing.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P273 Avoid release to the environment.
Response P301+P316 IF SWALLOWED: Get emergency medical help immediately.
P321 Specific treatment (see ... on this label).
P330 Rinse mouth.
P302+P352 IF ON SKIN: Wash with plenty of water/...
P316 Get emergency medical help immediately.
P361+P364 Take off immediately all contaminated clothing and wash it before reuse.
P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P363 Wash contaminated clothing before reuse.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P305+P354+P338 IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P317 Get medical help.
P308+P316 IF exposed or concerned: Get emergency medical help immediately.
P319 Get medical help if you feel unwell.
P391 Collect spillage.
Storage P405 Store locked up.
Disposal P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.
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Seller Information
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Business Type:
Trader
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Main Products:
Cationic,Anionic,Amphotric Surfactant,Benzalkonium chloride(BKC/BAC),Glutaraldehyde,Tetramethyl ammonium chloride(TMAC)
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Location:
2#,19 Floor,Building 15,2nd Phase of Putian Internet Innovative R&D Center,No. 18,the financial harbour 4th road,East Lake Hi-Tech Development Zone,Wuhan city,China
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Payment Terms:
TT against copy of documents,TT against B/L draft before shipment,100% TT in advance
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Average lead Time:
200
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Total Annual Revenue:
$1 million-$2.5 million
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Total Employees:
11-50
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Year of Establishment:
2018
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Inquiry History1 Inquiries
Country Product Purchase Quantity Date Posted 
Malaysia
Tetramethylammonium Hydroxide
20 KG Nov 28, 2025 Post an enquiry for this product
