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Hydroquinone, EssentQ®

- Synonyms: 1,4-Dihydroxybenzene, p-Dihydroxybenzene, Quinol
- C6H6O2
- M = 110,11 g/mol
- CAS [123-31-9]
- EINECS-No.: 204-617-8
- Solub. in water: (25 ºC): 70 g/l
- Melting point: ~ 172 ºC
- Boiling point: 287 ºC
- Flash pt. 165 ºC
- Ignition temp.: 516 ºC
- Vapour pressure: (132 ºC) 1,3 hPa
- LD 50 (oral, rat): 320 mg/kg
- EC-Index-No.: 604-005-00-4
- ADR: 9 M7 III UN 3077
- IMDG: 9 III UN 3077
- IATA/ICAO: 9 III UN 3077
- GHS-signal word: Danger
- GHS-H sentences: H318 - H341 - H351 - H410 - H302 - H317
- GHS-P sentences: P261 - P305+P351+P338 - P310 - P321 - P405 - P501a
- Tariff number: 2907 22 00 10
- Applications: analytical chemistry, for determination of: phosphates, antioxidant, photography, synthesis of organic products.
- Appearance: White crystalline powder

SPECIFICATIONS
assay: min. 99 %
identity (IR-spectrum): passes test
residue on ignition: max. 0,05 %
water (K.F.): max. 0,6 %