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.
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.
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.
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 |
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.
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