1.09613
Toluene-4-sulfonic acid monohydrate
for analysis EMSURE® ACS
Synonym(s):
Toluene-4-sulfonic acid monohydrate, p-Toluenesulfonic acid, Tosylic acid, Tosic acid, PTSA
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About This Item
grade
ACS reagent
Quality Segment
product line
EMSURE®
assay
≥99.0% anhydrous basis (acidimetric)
form
crystals
autoignition temp.
600 °C
potency
2570 mg/kg LD50, oral (Rat)
composition
Water, 9.5-11.5% Karl Fischer
impurities
≤0.1% Sulfated ash
pH
1 (20 °C, 650 g/L in H2O, anhydrous substance)
bp
140 °C/27 hPa
mp
56 °C (Elimination of water of crystallisation)
transition temp
flash point 180 °C
solubility
750 g/L
bulk density
510 kg/m3
anion traces
sulfate (SO42-): ≤0.3%
cation traces
Fe: ≤0.01%, Na: ≤0.002%, heavy metals (as Pb): ≤0.001%
storage temp.
15-25°C
SMILES string
[S](=O)(=O)([O-])c1ccc(cc1)C.[O+H3]
InChI
1S/C7H8O3S.H2O/c1-6-2-4-7(5-3-6)11(8,9)10;/h2-5H,1H3,(H,8,9,10);1H2
InChI key
KJIFKLIQANRMOU-UHFFFAOYSA-N
Analysis Note
Identity: passes test
Appearance of solution: conforms
Sulphate (SO₄): ≤ 0.3 %
Heavy metals (as Pb): ≤ 0.001 %
Fe (Iron): ≤ 0.01 %
Na (Sodium): ≤ 0.002 %
TLC-Test: passes test
Sulfated ash: ≤ 0.1 %
Water (according to Karl Fischer): 9.5 - 11.5 %
Other Notes
Legal Information
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Danger
Hazard Classifications
Aquatic Chronic 3 - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1C - STOT SE 3
target_organs
Respiratory system
Storage Class
8A - Combustible, corrosive hazardous materials
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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