| Agent Name |
Hydroxylamine |
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| CAS Number |
7803-49-8 |
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| Formula |
H3-N-O |
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| Major Category |
Nitrogen Compounds |
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| Synonyms |
Hydroxylamine free-base; [ChemFinder]; Oxammonium; [ChemIDplus] |
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| Category |
Other Nitrogen Compounds |
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| Description |
Odorless white crystalline solid; [HSDB] |
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| Sources/Uses |
Used as a reducing agent, antioxidant, chemical intermediate, and termination agent in polymers; used in the photography, chemistry, textile, leather, paint, soap, rubber, and plastics industries; [HSDB] Hydroxylamine sulfate used in photography (color neutralizing bath); [www.ci.tucson.az.us/arthazards/medium.html] |
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| Comments |
Crystals cause first degree burns on short exposure. [CHRIS] Reported toxic effects in humans include methemoglobinemia and skin sensitization. [HSDB] Allergic contact dermatitis reported in workers developing color photographs and handling laboratory reagents; [Kanerva, p. 1156] A skin, eye, and respiratory tract irritant; Can induce methemoglobinemia; May cause skin sensitization after prolonged contact; [ICSC] |
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| Exposure Assessment |
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| Skin Designation (ACGIH) |
Not evaluated |
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| Vapor Pressure |
9.75 mm Hg |
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| Explanatory Notes |
Vapor pressure at 47 degrees C = 1.3 kPa (9.75 mm Hg) [ICSC]; Flash point = 265 deg F; |
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| Reference Link |
International Chemical Safety Cards (WHO/IPCS/ILO) |
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| Adverse Effects |
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| Methemoglobinemia |
Methemoglobinemia, Secondary |
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| Dermatotoxin |
Skin Burns |
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| Skin Sensitizer |
Yes |
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| Links to Other NLM Databases |
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| Health Studies |
Human Health Effects from Hazardous Substances Data Bank: HYDROXYLAMINE
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