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Electronic chemicals & high-purity solvents

NMP, GBL, glycol ethers, alcohols, photoresist auxiliaries and TSV cleaners — industrial, battery and electronic grades from G2 to G5.

16products120,000 t/aNMP capacityG2–G5electronic grades

Product portfolio

ProductCASCapacityApplicationNote
IPAIsopropanol67-63-012,000 t/aCleaning, dryingPurification
PGMEAPropylene glycol monomethyl ether acetate108-65-612,000 t/aDilution, cleaningPurification
PGMEPropylene glycol monomethyl ether107-98-212,000 t/aDilution, cleaningPurification
NMPN-Methylpyrrolidone872-50-4120,000 t/aStripping, cleaningSynthesis
GBLγ-Butyrolactone96-48-0110,000 t/aStripping, dilutionSynthesis
ELEthyl lactate97-64-31,000 t/aSolvent—
nBAn-Butyl acetate123-86-41,000 t/aNegative photoresist developerPurification
EGEthylene glycol107-21-11,000 t/aCoolantRepackaging
HMDSHexamethyldisilazane999-97-310,000 t/aAdhesion promoterRepackaging
EtOHAnhydrous ethanol64-17-55,000 t/aCleaningRepackaging
StripperStripping solution—20,000 t/aPhotoresist strippingBlending
EBR-7030Edge bead remover / thinner—9,000 t/aEdge bead removalBlending
MIBCEUV thinner / cleaner108-11-21,000 t/aEUV photoresist dilutionJW Korea
EEPEthyl 3-ethoxypropionate763-69-91,000 t/aPhotoresist thinnerJW Korea
CleanerTSV backside wafer cleaner—1,000 t/aTSV backside cleanJW Korea
RemoverTSV adhesive remover—1,000 t/aTSV adhesive removalJW Korea

Grade specifications

Electronic grades are controlled for purity, moisture, colour, metal ions and particles. The tables below show the guaranteed limits for each grade.

NMP — N-Methylpyrrolidone CAS 872-50-4

ItemUnitIndustrialBatteryG2G3G4
Appearance—Colourless liquidColourless liquidColourless liquidColourless liquidColourless liquid
Puritywt%≥ 99.80≥ 99.90≥ 99.90≥ 99.92≥ 99.95
Moisturewt%≤ 0.020≤ 0.020≤ 0.020≤ 0.015≤ 0.010
ColourAPHA≤ 10.0≤ 10.0≤ 10.0≤ 10.0≤ 10.0
Metal ionsppb—≤ 20.0≤ 10.0≤ 1.0≤ 0.1
Particle > 0.5 µmEA/ml———≤ 100.0≤ 50.0

GBL — γ-Butyrolactone CAS 96-48-0

ItemUnitIndustrialBatteryG2G3G4
Appearance—Colourless liquidColourless liquidColourless liquidColourless liquidColourless liquid
Puritywt%≥ 99.70≥ 99.80≥ 99.90≥ 99.90≥ 99.92
Moisturewt%≤ 0.020≤ 0.020≤ 0.020≤ 0.015≤ 0.010
ColourAPHA≤ 10.0≤ 10.0≤ 10.0≤ 10.0≤ 10.0
Metal ionsppb—≤ 20.0≤ 10.0≤ 1.0≤ 0.1
Particle > 0.5 µmEA/ml———≤ 100.0≤ 50.0

CHA — Cyclohexylamine CAS 108-91-8

ItemUnitSpecificationResult
Purity%≥ 99.5099.80
Moistureppm≤ 1,500300
Anilineppm≤ 50020
Dicyclohexylamineppm≤ 50010

DCHA — Dicyclohexylamine CAS 101-83-7

ItemUnitSpecificationResult
Purity%≥ 99.3099.40
Moistureppm≤ 500200
ColourAPHA≤ 2015
Anilineppm≤ 50020
Cyclohexylamineppm≤ 50050
Cyclohexanolppm≤ 5000
Cyclohexaneppm≤ 5000

PM — 1-Methoxy-2-propanol CAS 107-98-2

ItemUnitG3G4
Moistureppm≤ 500≤ 100
ColourAPHA≤ 10.0≤ 5.0
Puritywt%≥ 99.80≥ 99.90
β-Isomerppm≤ 400≤ 200
Chlorideppb≤ 100≤ 50
Metal ionsppb≤ 1.00≤ 0.10
Particle > 0.5 µmEA/ml≤ 100≤ 5
Particle > 0.2 µmEA/ml—≤ 10

PMA — 1-Methoxy-2-propyl acetate CAS 108-65-6

ItemUnitG3G4
Moistureppm≤ 500≤ 100
ColourAPHA≤ 10.0≤ 5.0
Puritywt%≥ 99.80≥ 99.90
β-Isomerppm≤ 400≤ 200
Acidityppm≤ 200≤ 20
Metal ionsppb≤ 1.00≤ 0.10
Particle > 0.5 µmEA/ml≤ 100≤ 5
Particle > 0.2 µmEA/ml—≤ 10

IPA — Isopropanol CAS 67-63-0

ItemUnitG4G5
Moistureppm≤ 100≤ 50
ColourAPHA≤ 5.0≤ 5.0
Puritywt%≥ 99.990≥ 99.999
Acetoneppm≤ 5.0≤ 1.0
Acidityppm≤ 10.0≤ 5.0
ResistivityMΩ·cm—≥ 1,000
Evaporation residueppm—≤ 0.1
Metal ionsppb≤ 0.10≤ 0.010
Particle > 0.5 µmEA/ml≤ 5.0≤ 5.0
Particle > 0.2 µmEA/ml≤ 100.0≤ 50.0
Particle > 0.1 µmEA/ml≤ 200.0≤ 100.0

EBR-7030 — Edge bead remover CAS PGME / PGMEA blend

ItemUnitG3G4
PGME puritywt%69.5–70.569.5–70.5
PGMEA puritywt%29.5–30.529.5–30.5
Moistureppm≤ 200≤ 100
β-Isomer PGMEppm≤ 300≤ 200
β-Isomer PGMEAppm≤ 300≤ 200
Acidityppm≤ 50≤ 20
Chlorideppb≤ 50≤ 10
Evaporation residueppm—≤ 4.0
Metal ionsppb≤ 1.0≤ 0.10
Particle > 0.5 µmEA/ml≤ 100≤ 5
Particle > 0.2 µmEA/ml—≤ 10
Particle > 0.1 µmEA/ml—≤ 50

Specifications are indicative of the current product manual; lot-specific COA and SDS are issued with every shipment. Packaging options include 200 kg drums, 1 t IBC and 20/24 t ISO tanks.