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Merck
CN

1.88009

Aquastar® CombiMethanol

one component solvent for volumetric Karl Fischer titration, max. 0.01% H₂O, Aquastar®

Synonym(s):

Methanol, MeOH, Hydroxymethane, Methyl alcohol, Carbinol, Methyl alcohol

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About This Item

Linear Formula:
CH3OH
CAS Number:
Molecular Weight:
32.04
UNSPSC Code:
41115601
EC Index Number:
200-659-6
NACRES:
NA.21
Beilstein/REAXYS Number:
1098229
MDL number:
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Product Name

CombiMethanol, Solvent for volumetric Karl Fischer titration with one component reagents max. 0.01% H2O Aquastar®

vapor density

1.11 (vs air)

Quality Level

vapor pressure

128 hPa ( 20 °C), 410 mmHg ( 50 °C), 97.68 mmHg ( 20 °C)

product line

Aquastar®

form

liquid

autoignition temp.

725 °F

potency

5628 mg/kg LD50, oral (Rat), 17100 mg/kg LD50, skin (Rabbit)

expl. lim.

36 %

reaction suitability

reaction type: volumetric

technique(s)

Karl-Fischer titration: suitable, titration: suitable

refractive index

n20/D 1.329 (lit.)

kinematic viscosity

0.54-0.59 cSt(20 °C)

bp

64.7 °C (lit.)

mp

−98 °C (lit.)

transition temp

flash point 9.7 °C

density

0.791 g/mL at 25 °C (lit.)

format

single component solution

storage temp.

15-25°C

SMILES string

CO

InChI

1S/CH4O/c1-2/h2H,1H3

InChI key

OKKJLVBELUTLKV-UHFFFAOYSA-N

Analysis Note

Water: ≤ 0.01 %

Legal Information

AQUASTAR is a registered trademark of Merck KGaA, Darmstadt, Germany


signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Flam. Liq. 2 - STOT SE 1

target_organs

Eyes,Central nervous system

Storage Class

3 - Flammable liquids

flash_point_f

49.5 °F - closed cup

flash_point_c

9.7 °C - closed cup

Regulatory Information

危险化学品

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Certificates of Analysis (COA)

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Protocols

Accurately measure the moisture content in ethanolamine (HOCHCHNH) through Karl Fischer titration, using both volumetric or coulometric methods.

Summary application report for analysis of moisture in Perchloric acid 0.1 mol/L in acetic acid

Karl Fischer titration offers accurate water content determination in hemp samples compared to the loss on drying method.

View All Protocols

Articles

Methods including internal extraction, external extraction, and Karl Fischer oven ensure accurate water content determination by titration.

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Global Trade Item Number

SKUGTIN
188009100004027269004781
188009250004022536906560