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Merck
CN

258105

Sulfuric acid

ACS reagent, 95.0-98.0%

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About This Item

Linear Formula:
H2SO4
CAS Number:
Molecular Weight:
98.08
UNSPSC Code:
12352106
NACRES:
NA.21
PubChem Substance ID:
EC Number:
231-639-5
Beilstein/REAXYS Number:
2037554
MDL number:
Assay:
95.0-98.0%
Form:
liquid
Grade:
ACS reagent
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grade

ACS reagent

agency

suitable for EPA 1613, suitable for SM 4500 - NH3, suitable for SM 5210

vapor density

<0.3 (25 °C, vs air)

vapor pressure

1 mmHg ( 146 °C)

description

Nominally 95-98% H2SO4, Free from suspended or insoluble matter

assay

95.0-98.0%

form

liquid

ign. residue

≤5 ppm

color

APHA: ≤10

pH

1.2 (5 g/L)

bp

~290 °C (lit.)

solubility

water: soluble

density

1.840 g/mL at 25 °C (lit.)

anion traces

MnO4- reducers: ≤2 ppm, chloride (Cl-): ≤0.2 ppm, nitrate (NO3-): ≤0.5 ppm

cation traces

As: ≤0.01 ppm, Fe: ≤0.2 ppm, Hg: ≤5 ppb, NH4+: ≤2 ppm, heavy metals: ≤1 ppm (by ICP)

application(s)

PFAS testing

SMILES string

OS(O)(=O)=O

InChI

1S/H2O4S/c1-5(2,3)4/h(H2,1,2,3,4)

InChI key

QAOWNCQODCNURD-UHFFFAOYSA-N

Application

Sulfuric acid can be used as a catalyst:
  • In the hydrolysis of primary or secondary nitroalkane salts to aldehydes or ketones.
  • In the selective hydrolysis of nitriles to amides.
  • To synthesize amides of t-alkylcarbinamines via Ritter reaction between nitriles and alkenes.
  • To prepare 3,4-dialkyl-2(5H)-furanones by carbonylation of α,β-unsaturated aldehydes.
  • In the nitration of aromatic carbocycles and heteroaromatic compounds.
  • In the Friedel–Craft ketone synthesis using anhydrides via α-amidoalkylation reaction.

H2SO4 can also be used in the following reactions:
  • Michael′s addition reactions
  • Electrophilic substitution reactions
  • Esterification of highly hindered aromatic acids
  • Aldol condensation reaction
  • Beckmann rearrangement
  • Hofmann–Loffler–Freytag reaction
  • Isomerization
  • Dehydrogenation
  • Sulfonation

Other Notes

4L and 4X4L are packaged in poly bottles
ACS specifications same as product 320501
SKU-Pack sizes with -PC are packaged in PVC coated glass bottles.


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pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A

Storage Class

8B - Non-combustible corrosive hazardous materials

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

易制毒化学品(3类)
危险化学品

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Protocols

在测定5′-核苷酸酶活性时,本操作流程使用5′-单磷酸腺苷和一种显色试剂生成的标准曲线而对释放的磷的微摩尔数进行测定。

To measure 5′-nucleotidase activity, this procedure uses adenosine 5’-monophosphate and a color reagent to create a standard curve for determining the micromoles of phosphorus liberated.

Derived from procedure SSPHYT02. Includes template updates to current SOP specifications and incorporation of notes into the procedure.

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Tim Olding et al.
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This work develops imaging protocols for improved dose readout of a Fricke-xylenol orange-gelatin (FXG) gel-filled 1 L polyethylene terephthalate (PETE) jar dosimeter using a commercial Vista(TM) cone-beam optical computed tomography (CT) scanner from Modus Medical Devices Inc. (London, ON, Canada).
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S H Omang
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Journal of the Electrochemical Society, 144(5), L127-L130 (1997)



Global Trade Item Number

SKUGTIN
258105-100ML04061826059944
258105-4X100ML04061837735929
258105-500ML04061826060070
258105-500ML-PC04061837735967
258105-6X500ML04061826060131
258105-1L-PC04061826059951
258105-2.5L04061837735875
258105-2.5L-PC04061837735899
258105-6X2.5L04061837735981
258105-6X2.5L-PC04061826060100
258105-6X500ML-PC04061826060353