Hidróxido de amônio

Hidróxido de amônio
Alerta sobre risco à saúde
Identificadores
Número CAS 1336-21-6
Propriedades
Fórmula molecular NH4OH
Massa molar 35,04 g/mol
Aparência solução muito volátil, incolor, de amoníaco em água, de cheiro amargo
Densidade 0,91 g·cm−3 (25 %) [1]
0,88 g·cm−3 (32 %) [1]
Ponto de fusão

−57,5 °C (25 %) [1]
−91,5 °C (32 %) [1]

Ponto de ebulição

37,7 °C (25 %) [1]
24,7 °C (32 %) [1]

Solubilidade em água Miscível na água [1]
Riscos associados
Classificação UE Corrosivo (C)
Poluente (N)
Frases R R34, R50
Frases S S1/2, S26, S36/37/39, S45, S61
Compostos relacionados
Outros aniões/ânions Cloreto de amônio
Hidrossulfeto de amônio
Outros catiões/cátions Hidróxido de tetrametilamônio
Compostos relacionados Amônia
Página de dados suplementares
Estrutura e propriedades n, εr, etc.
Dados termodinâmicos Phase behaviour
Solid, liquid, gas
Dados espectrais UV, IV, RMN, EM
Exceto onde denotado, os dados referem-se a
materiais sob condições normais de temperatura e pressão
Referências e avisos gerais sobre esta caixa.
Alerta sobre risco à saúde.

O hidróxido de amônio, de fórmula química NH4OH, é uma base solúvel, só existe em solução aquosa quando faz-se o borbulhamento de amônia (NH3) em água.

Hidróxido de Amônio não é considerado cancerígeno pela OSHA.

Resumo de riscos: Nocivo quando ingerido, inalado e absorvido pela pele. Extremamente irritante para mucosas, sistema respiratório superior, olhos e pele.

Efeitos agudos: A inalação pode causar dificuldades na vítima como consequência: espasmos, inflamação e edema de garganta, pneumonia química e edema pulmonar.

Efeitos crônicos: A exposição repetida ao produto pode causar tosse, respiração ruidosa e ofegante, laringite, dor de cabeça, náusea, vômito e dor abdominal.

Primeiros socorros em casos de acidente:

- caso haja inalação, expor-se ao ar fresco e logo após, chamar um médico;

- em caso de contato com a pele, retirar imediatamente toda a roupa contaminada e tomar banho e chamar um médico imediatamente;

- após contato com os olhos, enxaguar com água e consultar um oftalmologista imediatamente;

- após ingestão, beber, no máximo, dois copos de água, evitar vomito, pois há risco de perfuração e chamar um médico imediatamente;

- não tentar neutralizar o agente tóxico.

Referências

  1. ↑ a b c d e f g Registo de Ammóniaoldat na Base de Dados de Substâncias GESTIS do IFA
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