Formic acid

产品名称

甲酸, Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

InChI

1S/CH2O2/c2-1-3/h1H,(H,2,3)

SMILES string

OC=O

InChI key

BDAGIHXWWSANSR-UHFFFAOYSA-N

grade

ACS reagent

agency

meets USP/NF

vapor density

1.6 (vs air)

vapor pressure

44.8 mmHg ( 20 °C)

assay

≥98%

form

liquid

autoignition temp.

1004 °F

expl. lim.

57 %

Quality Level

200

greener alternative product characteristics

Catalysis
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impurities

≤0.05% Acetic acid (CH₃COOH)

evapn. residue

≤0.001%

color

APHA: ≤10

refractive index

n20/D 1.370 (lit.)

pH

2.2 (20 °C, 10 g/L in H₂O)

pKa (20 °C)

3.7

bp

100-101 °C (lit.)
101 °C/1013 hPa

mp

8.2-8.4 °C (lit.)

transition temp

flash point 49.5 °C

solubility

water: soluble at 20 °C

density

1.22 g/mL at 25 °C (lit.)

anion traces

chloride (Cl^-): ≤5 ppm
sulfate (SO₄^2-): ≤5 ppm
sulfite (SO₃^2-): ≤0.001%

cation traces

Ag: ≤0.02 ppm
Al: ≤0.05 ppm
Ba: ≤0.05 ppm
Be: ≤0.02 ppm
Bi: ≤0.1 ppm
Ca: ≤0.2 ppm
Cd: ≤0.05 ppm
Co: ≤0.02 ppm
Cr: ≤0.05 ppm
Cu: ≤0.02 ppm
Fe: ≤2 ppm
Ge: ≤0.05 ppm
K: ≤0.1 ppm
Li: ≤0.02 ppm
Mg: ≤0.5 ppm
Mn: ≤0.05 ppm
Mo: ≤0.02 ppm
NH₄⁺: ≤0.001%
Na: ≤0.5 ppm
Ni: ≤0.05 ppm
Pb: ≤0.02 ppm
Sr: ≤0.02 ppm
Ti: ≤0.1 ppm
Tl: ≤0.05 ppm
V: ≤0.05 ppm
Zn: ≤0.05 ppm
Zr: ≤0.1 ppm
heavy metals (as Pb): ≤0.001%

greener alternative category

Aligned

shipped in

ambient

storage temp.

room temp