Hydroquinone me CAS 123-31-9
Ka helu hehee 172-175 °C(kukui)
Ka helu hoʻolapalapa 285 °C(kukui)
mānoanoa 1.32
māhu mahu 3.81 (vs ea)
ʻO ke kaomi mahu 1 mm Hg (132 °C)
huahelu hoʻopaʻa ʻia 1.6320
Fp 165 °C
ka mahana mālama.E mālama ma lalo o +30 ° C.
solubility H2O: 50 mg/mL, akaka
e like me ka Needle-like Crystals or Crystalline Powder
pka 10.35 (ma 20 ℃)
kala keʻokeʻo keʻokeʻo
Hiki i ka wai 70 g/L (20 ºC)
Ea a me ka malamalama
Merck 14,4808
BRN 605970
| inoa mea kūʻai | Hydroquinone | Pūʻulu No. | JL20211025 |
| Cas | 123-31-9 | La MF | OCT.25,2021 |
| Hoʻopili | 25KGS/EKE | Lā Hoʻolāʻau | OCT.25,2021 |
| Ka nui | 5MT | Lā Pau | OCT.24,2023 |
| 'ikamu | Kūlana | Ka hopena | |
| Ka nana aku | ʻO ka pauka kristal keʻokeʻo | Kūlike | |
| ʻIke % | 99-101 | 99.9 | |
| Lae hehee | 171-175 | 171.9-172.8 | |
| Ke koena ma hope o ka puhi ʻana % | ≤0.05 | 0.02 | |
| Fe % | ≤0.002 | ＜0.002 | |
| Pb % | ≤0.002 | ＜0.002 | |
| Ka hopena | Kūlike | ||
ʻO ka Hydroquinone kahi mea hoʻomaʻamaʻa puaʻa i hoʻohana ʻia i nā ʻaila bleaching.Hoʻohui koke ʻo Hydroquinone me ka oxygen a lilo i ʻeleʻele ke ʻike ʻia i ka ea.ʻOiai he mea maʻamau, ʻo ka synthetic version ka mea maʻamau i hoʻohana ʻia i nā mea hoʻonaninani.Hiki i ka hoʻohana ʻana i ka ʻili ke hoʻoulu i ka maʻi a hoʻonui i ka ʻili o ka lā.Hiki i ka hydroquinone ke make a pili i ka ochronosis, ka ʻili o ka ʻili.Ua pāpā ka US FDA i ka hydroquinone mai nā hoʻomeamea oTC, akā e ʻae i ka 4 pākēneka i nā huahana lāʻau.
ʻO 1,4-dihydroxybenzene, i ʻike ʻia ʻo hydroquinone, he mea waiwai nui.He keokeo acicular crystal kona helehelena.Hoʻohana nui ʻia ʻo 1,4-dihydroxybenzene ma ke ʻano he kumu waiwai nui, waena a me nā mea kōkua no ka lāʻau lapaʻau, pesticides, dyes a me ka lāʻau.Hoʻohana nui ʻia e like me ka mea hoʻomohala, anthraquinone dye, azo dye, rubber antioxidant a me ka monomer polymerization inhibitor, food stabilizer a me ka uhi antioxidant, petroleum anticoagulant, synthetic ammonia catalyst, etc. a me ke gula.
25kg / pahu.
