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ANHYDROUS ACID [5 records]

Record 1 2011-08-23

English

Subject field(s)
  • Chemical Elements and Compounds
Universal entry(ies)
PbO2
formula, see observation
O2Pb
formula, see observation
1309-60-0
CAS number
DEF

A chemical compound ... which appears under the form of poisonous, brown hexagonal crystals that decompose when heated, is insoluble in water and alcohol, soluble in glacial acetic acid, is derived by adding bleaching powder to an alkaline solution of lead hydroxide, and is used as an oxidizing agent, in electrodes, lead-acid storage batteries, matches and explosives, as a textile mordant, in dye manufacture, and as an analytical reagent.

OBS

Chemical formula: PbO2 or O2Pb

French

Domaine(s)
  • Éléments et composés chimiques
Entrée(s) universelle(s)
PbO2
formula, see observation
O2Pb
formula, see observation
1309-60-0
CAS number
OBS

Formule chimique : PbO2 ou O2Pb

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
Entrada(s) universal(es)
PbO2
formula, see observation
O2Pb
formula, see observation
1309-60-0
CAS number
OBS

Sólido cristalino de color pardo. Soluble en ácido acético glacial, insoluble en agua y alcohol. Oxidante. Tóxico.

OBS

Fórmula química: PbO2 o O2Pb

Save record 1

Record 2 2011-02-08

English

Subject field(s)
  • Chemical Elements and Compounds
Universal entry(ies)
(NH4)2Ni(SO4)2
formula, see observation
25749-08-0
CAS number
OBS

See also ammonium nickel sulfate hexahydrate (CAS number: 7785-20-8) and ammonium nickel sulfate (CAS number: 15699-18-0).

OBS

Chemical formula: (NH4)2Ni(SO4)2

French

Domaine(s)
  • Éléments et composés chimiques
Entrée(s) universelle(s)
(NH4)2Ni(SO4)2
formula, see observation
25749-08-0
CAS number
OBS

Voir aussi sulfate d'ammonium et de nickel hexahydrate (numéro CAS : 7785-20-8) et sulfate d'ammonium et de nickel (numéro CAS : 15699-18-0).

OBS

Formule chimique : (NH4)2Ni(SO4)2

Spanish

Save record 2

Record 3 2011-01-12

English

Subject field(s)
  • Chemical Elements and Compounds
Universal entry(ies)
DEF

A colorless pungent nonflammable poisonous gas HCl that fumes strongly in moist air and that is obtained primarily as a by-product of the chlorination of organic compounds or by burning hydrogen in chlorine.

OBS

Use: Production of vinyl chloride form acetylene, and alkyl chlorides from olefins; hydrochlorination; polymerization; isomerization, alkylation; and nitration reactions.

OBS

It yields hydrochloric acid when dissolved in water. See also that other record.

French

Domaine(s)
  • Éléments et composés chimiques
Entrée(s) universelle(s)
DEF

[...] gaz incolore, d'odeur piquante et de saveur acide [...], assez facile à liquéfier, [qui] bout sous la pression atmosphérique à [...] - 85 °C, [...] très soluble dans l'eau [...]

OBS

La solution de chlorure d'hydrogène HCl dans l'eau constitue l'acide chlorhydrique [voir aussi cette fiche].

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
Entrada(s) universal(es)
DEF

Gas fumante, con olor sofocante, incoloro, soluble en agua, alcohol y éter. No inflamable. Tóxico e irritante.

Save record 3

Record 4 2010-12-23

English

Subject field(s)
  • Chemistry
Universal entry(ies)
P2O5
formula, see observation
1314-56-3
CAS number
DEF

A compound known in various polymeric forms ... that is obtained usually by burning phosphorus in an excess of dry air and occurs as a white powder that reacts vigorously and sometimes explosively with water to form phosphoric acids ... and is used chiefly as a drying agent, as a condensing agent in organic synthesis, and in making phosphoric acids and derivatives ...

OBS

Chemical formula: P205

French

Domaine(s)
  • Chimie
Entrée(s) universelle(s)
P2O5
formula, see observation
1314-56-3
CAS number
CONT

Les principales [combinaisons de phosphore avec l'oxygène] sont l'anhydride phosphoreux et l'hémipentaoxyde de phosphore ou anhydride phosphorique. On les obtient par combustion du phosphore en présence d'air; pour l'anhydride phosphorique, on utilise un excès d'air. [Il] est solide, blanc, très avide d'eau, ce qui le fait employer comme desséchant énergique.

OBS

Formule chimique : P205

Spanish

Campo(s) temático(s)
  • Química
Entrada(s) universal(es)
P2O5
formula, see observation
1314-56-3
CAS number
DEF

Polvo blanco. Absorbe la humedad atmosférica, formando ácido metapiro-u orto-fosfórico. Fuerte irritante. Inflamable.

OBS

Fórmula química: P205

Save record 4

Record 5 2000-10-24

English

Subject field(s)
  • Chemical Elements and Compounds

French

Domaine(s)
  • Éléments et composés chimiques

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
Save record 5

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