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7732-18-5

Basic Information
CAS No.: 7732-18-5
Name: Water
Article Data: 2976
Molecular Structure:
Molecular Structure of 7732-18-5 (Water)
Formula: H2O
Molecular Weight: 18.0153
Synonyms: caustic soda liquid;Aquafina;Distilled water;Hydrogen oxide (H2O);UltrexII Ultrapure;
EINECS: 215-185-5
Density: 0.999 g/cm3
Melting Point: 318 °C(lit.)
Boiling Point: 100 °C at 760 mmHg
Flash Point: 100°C
Solubility: 1 M at 20 °C
Appearance: colourless liquid
Hazard Symbols: CorrosiveC
Risk Codes: 36/38
Safety: 26
Transport Information: UN 1824 8/PG 2
PSA: 9.23000
LogP: -0.06430
Synthetic route
Rosin dimer (Dymerex)

Rosin dimer (Dymerex)

Silres SY300

Silres SY300

A

rosin modified silicone silyl ester

rosin modified silicone silyl ester

B

7732-18-5

water

Conditions
ConditionsYield
tetrabutyl ammonium fluoride In xylene at 152℃; Conversion of starting material;A 100%
B 100%
N-formyl Rosinamine In xylene at 154℃; Conversion of starting material;A 92%
B 92%
1333-74-0

hydrogen

Conditions
ConditionsYield
platinum In neat (no solvent) reaction at room temperature;;100%
platinum In neat (no solvent) reaction at room temperature;;100%
alpha-alumina impergnated with patinum nitrate and tin (II) chloride calcinated at 500C (0.08 wtpercent Pt; 0.08 wtpercent Sn) at 300℃; under 9000.9 Torr; Conversion of starting material; Gas phase;

sodium sulfide

7782-99-2

sulphurous acid

1310-73-2

sodium hydroxide

A

7732-18-5

water

B

sodium thiosulfate

Conditions
ConditionsYield
In water pure SO2 is introduced into alkaline Na2S soln.;A n/a
B 100%

sodium disulfide

sodium hydrogensulfite

A

7732-18-5

water

B

sodium thiosulfate

Conditions
ConditionsYield
In water at 60°C, complete conversion;; pure Na2S2O3;A n/a
B 100%
In water mechanism discussed:;
6080-56-4

lead(II) acetate trihydrate

Conditions
ConditionsYield
In neat (no solvent) over H2SO4 in 7d;;100%
In neat (no solvent) loss of 3mol H2O in vac. over BaO;;
In neat (no solvent) complete loss of H2O in vac. over H2SO4 within 8d at 0°C, in 2d at 22°C;;>99
463-58-1

carbon oxide sulfide

7722-84-1

dihydrogen peroxide

A

124-38-9

carbon dioxide

B

7664-93-9

sulfuric acid

C

7732-18-5

water

Conditions
ConditionsYield
With potassium sulfate; potassium hydrogensulfate; potassium peroxomonosulfate In water Kinetics; oxidation of OCS studied in round-bottom Pyrex bulbs, acid-water mixtures introduced into bulbs and degassed, bulb reactors filled with with a gas mixture slightly above 1 atm total pressure with a typical mixing ratio of OCS:Ar:He=40:60:700 Torr; gas chromy. and mass spectroscopy applied for determination of product content;A 100%
B n/a
C n/a
With sulfuric acid In water Kinetics; oxidation of OCS studied in round-bottom Pyrex bulbs, acid-water mixtures introduced into bulbs and degassed, bulb reactors filled with with a gas mixture slightly above 1 atm total pressure with a typical mixing ratio of OCS:Ar:He=40:60:700 Torr; gas chromy. and mass spectroscopy applied for determination of product content;A 100%
B n/a
C n/a

[(2,2'-bipyridine-5,5'-dicarboxylate) platinum(II) (chloride)2]3 [yttrium(III) (water)3]2*5(water)

A

[(2,2'-bipyridine-5,5'-dicarboxylate) platinum(II) (chloride)2]3 [yttrium(III)]2

B

7732-18-5

water

Conditions
ConditionsYield
In neat (no solvent, solid phase) decomposition at 100 °C;A 100%
B n/a

ammonium thiosulfate

7783-06-4

hydrogen sulfide

A

7732-18-5

water

B

7704-34-9

sulfur

Conditions
ConditionsYield
In water Kinetics; Reduction of (NH4)2S2O3 (c=0.4 mole/liter) by H2S in aq. soln. (50°C, pH=5, p(H2S)=0.08 MPa) in presence of Si-based catalyst.; Gravimetrical determination of S.;A n/a
B 99.7%
In water Kinetics; Reduction of (NH4)2S2O3 (c=1.0 mole/liter) by H2S in aq. soln. (50°C, pH=5, p(H2S)=0.08 MPa) in presence of Si-based catalyst.; Gravimetrical determination of S.;A n/a
B 99.87%
In water Kinetics; Reduction of (NH4)2S2O3 (c=1.0 mole/liter) by H2S in aq. soln. (50°C, pH=5, p(H2S)=0.08 MPa).; Gravimetrical determination of S.;A n/a
B 76.1%
In water Kinetics; Reduction of (NH4)2S2O3 (c=0.4 mole/liter) by H2S in aq. soln. (50°C, pH=5, p(H2S)=0.08 MPa).; Gravimetrical determination of S.;A n/a
B 71.5%
7783-06-4

hydrogen sulfide

7446-09-5

sulfur dioxide

A

7732-18-5

water

B

7704-34-9

sulfur

Conditions
ConditionsYield
In hydrogenchloride 20°C;satd. solns.; molar ratio 2 : 1; 15 % HCl soln., ,30 min;; S coagulated by addn. of gelatine or Al2(SO4)3;A n/a
B 99.7%
In hydrogenchloride 20°C;satd. solns.; molar ratio 2 : 1; 15 % HCl soln., ,30 min;; S coagulated by addn. of gelatine or Al2(SO4)3;A n/a
B 99.7%
In hydrogenchloride 20°C; satd. solns.; molar ratio 2 : 1; 3.5 % HCl soln.;; S coagulated by addn. of gelatine or Al2(SO4)3;;A n/a
B 93.5%
67-56-1

methanol

A

34557-54-5

methane

B

124-38-9

carbon dioxide

C

7732-18-5

water

D

1333-74-0

hydrogen

Conditions
ConditionsYield
Stage #1: methanol With dihydrogen peroxide In water Liquid phase;
Stage #2: Cu/Zn/Al2O3 In water Conversion of starting material; Gas phase;
A n/a
B n/a
C n/a
D 99%
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Consensus Reports

EPA Genetic Toxicology Program. Reported in EPA TSCA Inventory.

Specification

The Water, with the CAS registry number 7732-18-5,is also known as Deionized water;Distilled water;Purified water. It belongs to the product categories of Melamine;Mono-;Mycotoxins;NOWPak Products;saccharides);Sterols.Its EINECS number is 231-791-2. This chemical's molecular formula is H2O and molecular weight is 18.01. What's more,Its systematic name is Water.It is a colourless liquid which is used in the preparation of cell culture media, and cell suspension and washing solutions.It is a clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances.Water is miscible with many liquids, for example ethanol, in all proportions, forming a single homogeneous liquid.Water and most oils are immiscible usually forming layers according to increasing density from the top. As a gas, water vapor is completely miscible with air. Water forms an azeotrope with many other solvents. Water can be split by electrolysis into hydrogen and oxygen.

Physical properties about Water are:
(1)ACD/LogP:  -1.38; (2)# of Rule of 5 Violations:  0; (3)ACD/LogD (pH 5.5):  -1.38; (4)ACD/LogD (pH 7.4):  -1.38; (5)ACD/BCF (pH 5.5):  1.00; (6)ACD/BCF (pH 7.4):  1.00; (7)#H bond acceptors:  1; (8)#H bond donors:  2; (9)#Freely Rotating Bonds:  0; (10)Index of Refraction:  1.329; (11)Molar Refractivity:  3.676 cm3; (12)Molar Volume:  18.045 cm3; (13)Polarizability:  1.457 10-24cm3; (14)Surface Tension:  72.2689971923828 dyne/cm; (15)Density:  0.999 g/cm3; (16)Flash Point:  °C; (17)Enthalpy of Vaporization:  40.65 kJ/mol; (18)Boiling Point:  100 °C at 760 mmHg; (19)Vapour Pressure:  24.4750003814697 mmHg at 25°C;

You can still convert the following datas into molecular structure:
(1)SMILES:O;
(2)Std. InChI:InChI=1S/H2O/h1H2;
(3)Std. InChIKey:XLYOFNOQVPJJNP-UHFFFAOYSA-N.

The toxicity data of Water are as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
cat LDLo oral 320gm/kg (320000mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD Journal of Pharmacology and Experimental Therapeutics. Vol. 29, Pg. 135, 1926.
dog LDLo oral 629gm/kg (629000mg/kg)   Journal of Pharmacology and Experimental Therapeutics. Vol. 29, Pg. 135, 1926.
guinea pig LDLo oral 429gm/kg (429000mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD Journal of Pharmacology and Experimental Therapeutics. Vol. 29, Pg. 135, 1926.
infant TDLo oral 333gm/kg (333000mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA"
Archives of Disease in Childhood. Vol. 54, Pg. 551, 1979.
man TDLo oral 42.86gm/kg (42860mg/kg) BEHAVIORAL: TREMOR

BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY)
Journal of Pharmacology and Experimental Therapeutics. Vol. 29, Pg. 135, 1926.
mouse LD50 intraperitoneal 190gm/kg (190000mg/kg)   National Technical Information Service. Vol. AD628-313,
mouse LD50 intravenous 25gm/kg (25000mg/kg)   Microvascular Research. Vol. 8, Pg. 320, 1974.
rabbit LDLo intravenous 13gm/kg (13000mg/kg) BLOOD: OTHER HEMOLYSIS WITH OR WITHOUT ANEMIA Journal of Pharmacology and Experimental Therapeutics. Vol. 29, Pg. 135, 1926.
rabbit LDLo oral 368gm/kg (368000mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD Journal of Pharmacology and Experimental Therapeutics. Vol. 29, Pg. 135, 1926.
rabbit LDLo rectal 450gm/kg (450000mg/kg) SENSE ORGANS AND SPECIAL SENSES: MYDRIASIS (PUPILLARY DILATION): EYE

BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY)

GASTROINTESTINAL: CHANGES IN STRUCTURE OR FUNCTION OF SALIVARY GLANDS
JAMA, Journal of the American Medical Association. Vol. 104, Pg. 1569, 1935.
rat LD50 oral > 90mL/kg (90mL/kg)   Food Research. Vol. 21, Pg. 348, 1956.
women LDLo rectal 180gm/kg/28H (180000mg/kg) SENSE ORGANS AND SPECIAL SENSES: MYDRIASIS (PUPILLARY DILATION): EYE

GASTROINTESTINAL: NAUSEA OR VOMITING

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
JAMA, Journal of the American Medical Association. Vol. 104, Pg. 1569, 1935.