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Key Documents

Safety Information

TX0770

Supelco

p-Toluenesulfonic Acid, Monohydrate

GR ACS

Synonym(s):

p-Toluenesulfonic Acid, Monohydrate, 1-Hydrate

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About This Item

Empirical Formula (Hill Notation):
C7H8O3S · xH2O
CAS Number:
6192-52-5
Molecular Weight:
172.20 (anhydrous basis)
MDL number:
MFCD00142137
UNSPSC Code:
12352106
EC Index Number:
203-180-0
grade:
ACS reagent
form:
crystals
solubility:
750 g/L
Pricing and availability is not currently available.

grade

ACS reagent

Quality Level

200

Assay

≥99.0% anhydrous basis (acidimetric)

form

crystals

composition

Water, 9.5-11.5%

ign. residue

≤0.1% (600 °C)

color

off-white

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

anion traces

sulfate (SO42-): ≤0.3%

cation traces

Fe: ≤0.01%
Na: ≤0.002%
heavy metals (as Pb): ≤0.001%

shipped in

ambient

storage temp.

room temp

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

Application

GR ACS

Analysis Note

Appearance (description)hygroscopic crystalsAppearance of solutionconformsAssay (acidimetric; calc. on anhydrous substance)99.0% minColoroff-whiteHeavy metals (as Pb)0.001% maxIron (Fe)0.01% maxResidue after ignition (600°C)0.1% maxSodium (Na)0.002% maxSulfate (SO4)0.3% maxWater (H2O)9.5-11.5%

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

TX0770-3:

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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