ライフサイエンスコーパス: sulfuric acid

1 cid catalyzed by Pd2+ cation in concentrated sulfuric acid.

2 acidity comparable to that of 100% anhydrous sulfuric acid.

3 ulfate anions and by one or two molecules of sulfuric acid.

4 d silica gel and a mixture of silica gel and sulfuric acid.

5 es to acetic acid at 180 degrees C in liquid sulfuric acid.

6 onor and a hydrogen bond acceptor toward the sulfuric acid.

7 termediate alcohol 14 was then cyclized with sulfuric acid.

8 ion is carried out in the presence of dilute sulfuric acid.

9 23-diselenaporphyrin (4), respectively, with sulfuric acid.

10 e in the presence of lower concentrations of sulfuric acid.

11 acid more slowly on heating in concentrated sulfuric acid.

12 r biogenic organic compounds, in addition to sulfuric acid.

13 oduct of the Friedel-Crafts acylation in hot sulfuric acid.

14 hich oxidizes methane to methyl bisulfate in sulfuric acid.

15 molybdate in the presence of 50.0 mmol L(-1) sulfuric acid.

16 annot be explained only by the nucleation of sulfuric acid.

17 ssible cyanohydrin derivatives in methanolic sulfuric acid.

18 Pt(II) "Periana-Catalytica" catalyst in 98% sulfuric acid.

19 s, of which one example is the production of sulfuric acid.

20 blue when exposed to mixtures of iodine and sulfuric acid.

21 le microcrystals of graphite in concentrated sulfuric acid.

22 calcite slurry dissolution with carbonic and sulfuric acids.

23 Milk was wet-ashed by using nitric and sulfuric acids.

24 peracetic acid (300 mM, 2.3 wt%) and dilute sulfuric acid (100 mM, 1.0 wt%) at 120 degrees C for 5 m

25 ce source material for mineral dust, in pH 2 sulfuric acid, acetic acid, and oxalic acid, respectivel

26 Sulfuric acid additions could have made the surface ocea

27 ormation without the intentional addition of sulfuric acid, although contamination could not be exclu

28 easurements of rates of nucleation involving sulfuric acid, ammonia, ions, and organic compounds cond

29 (HOMs), in addition to taking place through sulfuric acid-ammonia nucleation.

30 The phosphonic acid and sulfuric acid analogs of OVS are also potent inhibitors

31 uster sequentially loses ammonia followed by sulfuric acid and (2) a one-step pathway whereby the clu

32 intercalation compound (GIC) in concentrated sulfuric acid and (2) oxidizing and exfoliating the stag

33 Though sulfuric acid and ammonia/amines are recognized as main

34 The air/aqueous interfaces of sulfuric acid and bisulfate solutions play key roles in

35 ine complex is quantitatively extracted from sulfuric acid and can be recovered from the column by el

36 Results demonstrate that sulfuric acid and condensed organosulfur species formed

37 During the experiments involving sulfuric acid and dimethylamine, it was possible to stud

38 to generate low-volatility products such as sulfuric acid and high-molecular weight organics that nu

39 atosphere, in the heterogeneous formation of sulfuric acid and in the formation of aerosols, in H(2)S

40 water molecules, and also in the presence of sulfuric acid and its complexes with one and two water m

41 opogenic sources are oxidized in air to form sulfuric acid and methanesulfonic acid (MSA).

42 of carbon single-walled nanotubes (SWNTs) in sulfuric acid and Nafion was investigated using solid-st

43 acid production can be explained by reduced sulfuric acid and organic acid production.

44 tic seabird-influenced particles can grow by sulfuric acid and organic vapour condensation to diamete

45 The nucleation of sulfuric acid and organic vapours is thought to be respo

46 volving the formation of clusters containing sulfuric acid and oxidized organic molecules from the ve

47 ving Outdoor Droplets) chamber at CERN, that sulfuric acid and oxidized organic vapors at atmospheric

48 llowed by sample dissolution in a mixture of sulfuric acid and sodium bisulfite.

49 of peracetic acid (PAA) and Amplon (blend of sulfuric acid and sodium sulfate) at a poultry processin

50 Coating with sulfuric acid and subsequent hygroscopic growth enhance

51 Sulfuric acid and water clusters are important for new p

52 2-3 nm most likely occurs by condensation of sulfuric acid and water, implying that anthropogenic sul

53 tratospheric aerosols primarily consisted of sulfuric acid and water, many also contained meteoritic

54 anotube fibers were swollen in oleum (fuming sulfuric acid), and organic spacer groups were covalentl

55 esulfonic acid is formed simultaneously with sulfuric acid, and both are found in particles in coasta

56 ximately 37 wt.%) and 20% (v/v) concentrated sulfuric acid ( approximately 98 wt.%) at room temperatu

57 under solar UV light produces first gaseous sulfuric acid as an intermediate product before surface-

58 cular the methanolysis of ethyl acetate with sulfuric acid as catalyst, is used as a model reaction t

59 with propionic anhydride using concentrated sulfuric acid as catalyst.

60 Sulfonation of 5 and 6 with concentrated sulfuric acid at 100 degrees C gave sulfonated derivativ

61 d, sulfur dioxide, and sulfur polymers, with sulfuric acid being about 50 times as abundant as the ot

62 the major product when solutions of bromate, sulfuric acid, bromide, and chloride ions are frozen.

63 Sulfuric acid can act as a catalyst of its own formation

64 occur via low-energy pathways under water or sulfuric acid catalysis.

65 rongly confirm that inorganic acids, such as sulfuric acid, catalyze particle-phase heterogeneous rea

66 Fuming sulfuric acid charges SWNTs and promotes their ordering

67 rmation of an unusually stable aromatic acid-sulfuric acid complex, which likely leads to a reduced n

68 quantitatively determined and the gas-phase sulfuric acid concentration required to incorporate the

69 aterial, which spatially correlates with the sulfuric acid concentration, is identified as radiolytic

70 that the AP-ID-CIMS allows quantification of sulfuric acid concentrations and is capable of detecting

71 Enhanced sulfuric acid concentrations are found in Europa's geolo

72 tion rates or their functional dependence on sulfuric acid concentrations.

73 the stability and growth on the hydrophilic sulfuric acid counterpart.

74 ducts are either bare sulfuric acid dimer or sulfuric acid dimer complexed with a water molecule.

75 cases, the reaction products are either bare sulfuric acid dimer or sulfuric acid dimer complexed wit

76 t particles acquire a large mass fraction of sulfuric acid during atmospheric aging, considerably alt

77 on was observed from 0.1 M Na(2)SO(4) in 95% sulfuric acid during multibubble sonoluminescence (MBSL)

78 The hydrogen-bonding OH bond of the sulfuric acid elongates by 0.07(2) A relative to that in

79 teraction between biogenic organic acids and sulfuric acid enhances nucleation and initial growth of

80 The model uses empirical estimates of sulfuric acid evaporation rates obtained from new measur

81 strength to at least that of 100% anhydrous sulfuric acid for various acid-catalyzed organic transfo

82 ic aerosols by reacting with condensed phase sulfuric acid, forming low-volatility organosulfate comp

83 potassium contents because the production of sulfuric acid from protein metabolism and bicarbonate fr

84 rvations of dimethylsulfide, sulfur dioxide, sulfuric acid (gas), hydroxide, ozone, temperature, rela

85 It was observed that the gaseous sulfuric acid (GSA) concentration varied strongly, altho

86 issolution are in the order of oxalic acid > sulfuric acid > acetic acid.

87 y in the literature regarding the effects of sulfuric acid (H(2)SO(4)) on elemental Hg uptake by acti

88 We report on the intermolecular transfer of sulfuric acid (H2SO4) and sulfur trioxide (SO3) from an

89 However, sulfuric acid (H2SO4) can form on the external and inter

90 ate aerosol layer led to the suggestion that sulfuric acid (H2SO4) must photolyze at high altitudes.

91 tabilized Criegee radicals (sCIs) in gaseous sulfuric acid (H2SO4) production.

92 Sulfuric acid (H2SO4), bisulfate (HSO4(-)), and sulfate

93 Sulfuric acid (H2SO4), formed from oxidation of sulfur d

94 ospheric aging, internal mixing of soot with sulfuric acid has profound implications on visibility, h

95 sed on unspecific gravimetric analysis after sulfuric acid hydrolysis.

96 oxidized biogenic vapours in the absence of sulfuric acid in a large chamber under atmospheric condi

97 Tailings were leached using sulfuric acid in reaction columns and subsequently inocu

98 , and also in understanding the formation of sulfuric acid in the atmosphere of Venus.

99 estigation show that the catalytic effect of sulfuric acid in the SO(3) hydrolysis can be important i

100 Although the sulfuric acid in this work was produced from direct reac

101 will convert hydrogen halides and nitric and sulfuric acids into stable salts to enable stratospheric

102 Sulfuric acid is commonly known to be a strong acid and,

103 boratory experiments show that nucleation of sulfuric acid is considerably enhanced in the presence o

104 The detection of nitric acid and sulfuric acid is demonstrated down to 100 ppb via reacti

105 It is thought that sulfuric acid is essential to initiate most particle for

106 ra with Galileo data indicates that hydrated sulfuric acid is present and is a major component of Eur

107 In addition, condensation of sulfuric acid is shown to occur at a similar rate on amb

108 Sulfuric acid is the key chemical component to new parti

109 y dextran sulfate sodium and trinitrobenzene sulfuric acid, KO mice were more tolerant than wild-type

110 ins, suggesting that low-temperature, liquid sulfuric acid may influence geological processes.

111 carbonyl groups is observed in concentrated sulfuric acid media that also produces a previously unob

112 ethods for carbohydrate analysis, the phenol-sulfuric acid method is the easiest and most reliable me

113 ly utilized oxidation media, via nitric acid/sulfuric acid mixtures, are too corrosive and oxidizing

114 catalytic water molecule is substituted by a sulfuric acid molecule or one of its hydrates.

115 f monoterpenes, cluster directly with single sulfuric acid molecules and then form growing clusters o

116 simulations to show that the presence of two sulfuric acid molecules in (H2SO4)m x base x (H2O)6 clus

117 With one cis-pinonic acid and three to five sulfuric acid molecules in the critical nucleus, the hyd

118 d then form growing clusters of one to three sulfuric acid molecules plus one to four oxidized organi

119 Here we show large size growth when sulfuric acid nanoparticles of 4-20 nm are exposed to ep

120 ces of nutrients of aeolian origin including sulfuric acid, nitric acid, methanosulfonic acid (MSA),

121 ding hydrogen peroxide, nitrous acid and the sulfuric acid/O(2) couple.

122 absence of inorganic acids and bases such as sulfuric acid or ammonia and amines, respectively.

123 then probably limited by the arrival rate of sulfuric acid or cluster-cluster collision.

124 in atmospheric field conditions that involve sulfuric acid, organic or iodine oxide vapours have yet

125 h century stone from York Minster suppresses sulfuric acid permeation.

126 rticles in terrestrial environments with low sulfuric acid pollution.

127 Bioleaching using sulfuric acid produced by sulfur-oxidizing bacteria was

128 The mechanism of reduced sulfuric acid production is unknown.

129 Daily sulfuric acid production was also estimated from the red

130 otentially important pathway for atmospheric sulfuric acid production.

131 ently the accepted mechanism for atmospheric sulfuric acid production.

132 ply that the interaction between organic and sulfuric acids promotes efficient formation of organic a

133 alues were compared to those calculated by a sulfuric acid proxy that considers solar radiation and S

134 tion the neutral gaseous species ammonia and sulfuric acid react to form ammonium and sulfate ions.

135 For atmospheric sulfuric acid (SA) concentrations the presence of dimeth

136 ons of gaseous formic acid with concentrated sulfuric acid show that impinging monomers (HCOOH and DC

137 rodes, Deltaphi(sol), immersed in an aqueous sulfuric acid solution was monitored while performing co

138 on carbon but favorable on platinum in a 1 M sulfuric acid solution.

139 cy generation (SFG) spectra of adlayers from sulfuric acid solutions on Pt(111) surfaces and reveal s

140 ich utilizes (bpym)Pt(II)Cl2 in concentrated sulfuric acid solvent at 200 degrees C, is a highly stab

141 on is possible through the use of an aqueous sulfuric acid solvent, in an aqueous biphasic reaction m

142 tinuously cycles sulfur between three forms: sulfuric acid, sulfur dioxide, and sulfur polymers, with

143 The key step is a Prins reaction in 60% sulfuric acid that gave the key tricyclic intermediate w

144 res only air, water, electricity, and dilute sulfuric acid, the bulk of the latter being recycled.

145 f the clusters containing three molecules of sulfuric acid, the clusters grow at a similar speed, ind

146 s treated in the second-stage leaching using sulfuric acid to further concentrate precious metals, wh

147 = 1,3,5-benzenetricarboxylate] with aqueous sulfuric acid to generate its sulfated analogue, MOF-808

148 he cesium hexafluosilicate with concentrated sulfuric acid to generate silicon tetrafluoride gas.

149 bazides 3a-c were cyclized by treatment with sulfuric acid to give 1,3,4-thiadiazoles 4a-c.

150 xtractable metal complex, we used iodide and sulfuric acid to neutralize the charge on Cd(2+) to form

151 The contribution of sulfuric acid to new particle growth was quantitatively

152 0% aqueous hydrogen peroxide in concentrated sulfuric acid to provide 2-(5-oxo-3-(pentafluorosulfanyl

153 se gas (GHG) emissions was the production of sulfuric acid to regenerate resins, rather than transpor

154 ermination, the seeds were usually soaked in sulfuric acid to remove shells easily.

155 We investigated the nucleation of sulfuric acid together with two bases (ammonia and dimet

156 The experiments involved sulfuric acid vapor and different stabilizing species, i

157 del predicts that nucleation rates equal the sulfuric acid vapor collision rate times a prefactor tha

158 ted nucleation rates and their dependence on sulfuric acid vapor concentrations are in reasonable agr

159 Soot particles exposed to subsaturated sulfuric acid vapor exhibit a marked change in morpholog

160 positively correlated with concentrations of sulfuric acid vapor.

161 Sulfuric acid vapour is often involved in nucleation but

162 rrous ammonium sulfate hexahydrate in dilute sulfuric acid was a more stable alternative.

163 Leaching with sulfuric acid was carried out, followed by metal recover

164 ls (>25.0%, w/w) reaction with diphenylamine-sulfuric acid was found adequate to indicate the presenc

165 Sulfuric acid was found to be the preferred sample prese

166 nanotubes (SWNTs) in a mixture of nitric and sulfuric acids was carried out to synthesize highly wate

167 ammonia gas is stripped and passed into the sulfuric acid where ammonium sulfate and hydrogen triamm

168 sformations are conducted in the presence of sulfuric acid, which reacts with the amine substrates in

169 trations and is capable of detecting gaseous sulfuric acid with a detection limit of less than 10(5)

170 H2O hydrogens and a nearby S=O oxygen on the sulfuric acid, with an O...H distance of 2.05(1) A and a

171 le formation and growth involved ammonia and sulfuric acid, with limited input from organics.

172 te porphyrins on treatment with concentrated sulfuric acid yielded the free-base cyanobenzochlorins i