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Methylparaben

CAS 99-76-3 Methylparaben

 

  • Ainm toraidh:

    Methylparaben

  • Ìre:

    Cosmetic/Pharmaceutical grade

  • Feartan:

    white powder

  • Pacadh:

    25kg / druma

  • MOQ:

    1 kilo

  • Stòradh:Àite tioram fionnar
  • Beatha sgeilp:2 bhliadhna


Mion-fhiosrachadh

Tagaichean

Tuairisgeul toraidh

This product is white or quasi-white crystal or crystalline powder.
This product is easily soluble in methanol, ethanol or ether, soluble in hot water, slightly soluble in water.

Iarrtas

Paraben methyl ester, also known as hydroxyphenylate, Paraben lipids were initially used as food preservatives, and after a series of exploration studies, they were introduced into cosmetics as preservatives. Hydroxyphenylate has a strong antibacterial effect, among which the most prominent Chemicalbook is the antibacterial ability of mold and yeast, but for some bacteria (gram-negative bacteria, lactic acid bacteria) the effect is poor, so it is often used with other preservatives in cosmetics.
Methyl paraben is mainly used as a bactericidal preservative in organic synthesis, food, cosmetics, medicine, and also used as a feed preservative.

Buannachdan

Tha mòran fhactaraidhean àrd-inbhe againn le co-obrachadh domhainn, a bheir dhut toraidhean àrd-inbhe agus prìsean farpaiseach. Agus is urrainn dhuinn cuideachd lasachaidhean a thoirt seachad airson mòr-cheannach. Tha an ùine lìbhrigidh timcheall air 3-20 latha às deidh dearbhadh pàighidh.

 

Sònrachadh
Molecular Formula C8H8O3
Molar Mass 152.15
Density 1,46g/cm
Rubha leaghaidh 125-128 °C (lit.)
Boling Point 298.6 °C
Flash Point 280°C
Solubility uisge Slightly soluble in water.
Solubility Slightly soluble in water, easily soluble in ethanol, ether, acetone and other organic solvents.
Vapor Presure 0.000005 hPa (20 °C)
Coltas White needle crystal
Color White to almost white
Merck 14,6107
BRN 509801
pKa pKa 8.15(H2O,t =20.0) (Uncertain)
PH 5.8 (H2O, 20°C) (saturated solution)
Storage Condition room temp
Seasmhachd Stable. Incompatible with strong oxidizing agents, strong bases.
Sensitive Easily absorbing moisture
Refractive Index 1.4447 (estimate)
MDL MFCD00002352
Physical and Chemical Properties Properties: White needle-like crystals or colorless crystals
slightly soluble in water, soluble in ethanol, ether, acetone and other organic solvents
Cleachd Used as food, cosmetics and pharmaceutical mildewproofing agent

 

Gluasad agus pàigheadh

 

 

Ceistean Cumanta

1. An e factaraidh no companaidh malairt a th 'annad?
Tha sinn nar companaidh a tha ag amalachadh gnìomhachas agus malairt, a’ toirt seachad seirbheis aon-stad. Dh’ fhaodadh gabhail ri OEM.

2. A bheil thu a 'toirt seachad samples? A bheil e an-asgaidh no a bharrachd?
Saor an-asgaidh samples.The shampall cìs bathair feumar pàigheadh ​​le ur taobh.

3. A bheil teisteanasan sam bith agad co-cheangailte ri smachd càileachd?
Teisteanas ISO 9001: 2008 gus dèanamh cinnteach à càileachd.

4. Dè a bu chòir dhomh a thoirt seachad gus luachan fhaighinn?
Bidh Pls ag innse dhuinn mun t-seòrsa toraidh a dh’ fheumas tu, meud òrduigh, seòladh agus riatanasan sònraichte. Thèid an luachan a dhèanamh airson do iomradh ann an ùine.

5. Dè an seòrsa dòigh pàighidh as fheàrr leat? Dè an seòrsa teirmean ris an tèid gabhail?
Cumhachan Lìbhrigeadh ris an deach gabhail: FOB, CFR, CIF, EXW;
Airgead pàighidh ris an deach gabhail: USD;
Seòrsa Pàighidh ris an deach gabhail: T / T, Western Union; Paypal, Dearbhadh Malairt.
Cànan air a labhairt: Beurla.

 

Ma tha ùidh agad anns na stuthan againn, faodaidh tu roghnachadh d’ fhiosrachadh fhàgail an seo, agus bidh sinn ann an conaltradh riut a dh’ aithghearr.


Sgrìobh do theachdaireachd an seo agus cuir thugainn e