Product

Product Models
Insights
Solutions
Product
Fresh Hevea Latex
Names
Fresh Field Latex; Natural Rubber Latex; Hevea brasiliensis latex; Caoutchouc; Para Rubber Latex; Hevea Milk; Poly(1-methylbut-1-ene-1,4-diyl)
Insight Articles
#PS777
latex hevealatex rubberlatex naturalrubber
Main Product
Hevea Latex
Segment
Animal and Vegetal Products
Main-Family
Agriculture&Forestry Products
Sub-Family
Plant Exudates
Physical State

Liquid

Description

Defaut product of fresh hevea latex (unprocessed, unconverted).
See main product page for a detailed description.

Physical Properties of Fresh Field Latex

Property Value
Appearance Milky-white viscous liquid
pH 6.5–7.0 ​
Density ~0.97 g/cm³
Dry rubber content (DRC) 30–40% by weight ​
Water content ~55–65% ​
Protein content ~1–2% ​
Lipid content ~1–2% ​
Carbohydrates ~1% ​
Inorganic salts/ash ~0.5% ​
Rubber particle size 0.1–3 µm diameter ​
Colloidal stability Negatively charged particles;
coagulates spontaneously within
hours without preservation ​
Glass transition temp. (Tg) −70 °C to −73 °C (rubber fraction)
Odor Faintly sweet to neutral; turns
ammoniacal upon bacterial action
Water solubility Colloidal dispersion; not soluble

 

References

  1. Bottier C. (2020). Biochemical composition of Hevea brasiliensis latex: A focus on the protein, lipid, carbohydrate and mineral contents. In : Nawrot Robert (ed.). Latex, laticifers and their molecular components: From functions to possible applications. Londres : Academic Press, p. 201-237. (Advances in Botanical Research, 93). DOI: 10.1016/bs.abr.2019.11.003
  2. Nawamawat K., Sakdapipanich J.T., Ho C.C., Ma Y., Song J., & Vancso J.G. (2011). Surface nanostructure of Hevea brasiliensis natural rubber latex particles. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 390(1), 157–166. DOI: 10.1016/j.colsurfa.2011.09.021
Please login/register for full access
Insight Articles
Your insights will be shown here
Products Picture
Tapping of hevea Rubber Latex
Identifiers
logo CAS Number
9006-04-6
logo EC Number
232-689-0
logo ECHA InfoCard
100.029.580
logo IUPAC Name
Poly(1-methylbut-1-ene-1,4-diyl)
Chemical Data
Chemical Formula

(C5H8)n

Specific Gravity
0.97
Crude Data
API Gravity
14.38
Country
Product Settings
Default
Status
A
Content provided by
Transaction Name Date
Modified by UserPic   Kokel, Nicolas 3/4/2026 2:29 PM
Added by UserPic   Kokel, Nicolas 3/4/2026 2:01 PM