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硬脂酸 stearic acid ( 十八酸, 己基癸醇硬脂酸酯)
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很少單獨存在於自然界裡,並非化學合成物,常以甘油酯的形態存在,硬脂酸在自然界的分布很廣, soap-diy.com $ J/ Z: ]( K+ _( Z1 `0 r
存在於許多植物性油脂和動物性油脂中。
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動物脂肪中的含量比在植物油脂中的含量要高,如牛油中的含量可達24%,茶油為0.8%,棕櫚油為6%
2 W# w& K8 p! F soap-diy.com ,但可可脂中的含量高達34%。 soap-diy.com 5 B* l  _6 ?- G


9 a1 @, n" w1 h$ _7 Q' p- l soap-diy.com 硬脂酸實際上是45%硬脂酸和55%軟脂酸的混合物,並含有少量油酸,略帶脂肪氣味 soap-diy.com 0 F* ], Y9 a* Z5 `1 R

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生產方式 soap-diy.com 5 t- x* p5 T) ^9 I
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動物油與水在高溫高壓下反應,使甘油三酸酯水解。不飽和植物油與氫氣加成得到。 soap-diy.com $ q+ L- }7 f; u7 b* T2 v

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硬脂酸在手工皂的應用主要是增加皂成品硬度。 soap-diy.com   B! F, q( k  r4 a* ?! K5 z: t


, H9 g2 @) k+ H  c0 P& X soap-diy.com 添加硬脂酸的手工皂成品,有刺激皮膚的可能性,也比較容易阻塞毛孔。 soap-diy.com % Z/ A% Q7 B5 ~/ \

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硬脂酸添加比例為3%~5%。 soap-diy.com 7 ]: N2 P! c: c  c  f% P) P

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建議計算氫氧化鈉時,計入硬脂酸皂化價 soap-diy.com 0 V4 ]4 k5 t5 `  t+ D7 S


, ^3 u- y5 V, e# X4 E0 x3 ?# V soap-diy.com 添加硬脂酸方式,純硬脂酸融點69.4度,可先與耐熱油脂熱融,如椰子油棕櫚油,一起加熱融好,再跟其他油ㄧ起融鹼。
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根據皂友心得:如沒併入一起計算ins值,可將計算後約INS90的手工皂配上3%硬脂酸,就可有理想的硬度。
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詢問商家的硬脂酸是那一種等級,應該是要買化妝品級的硬脂酸,購買三壓等級。

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1 c4 F7 g: c& q/ p soap-diy.com 硬脂酸在手工皂的功能是增加皂的硬度。
4 w0 m* n: F1 r5 t! b3 \: J8 X; M soap-diy.com 操作方式 : 可先與耐熱的油一起熱融後再與其他的油一起融鹼,如融鹼後才加入,會加快Trace,需小心有假
Trace情況發生。
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硬脂酸(三壓級) soap-diy.com 3 W# L$ u: [6 P
STEARIC ACID

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! p1 C) A1 O7 B% z+ `4 @ soap-diy.com Specs No.:703-28602 Product Code:SA1801 Product Form:Beads

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Property: soap-diy.com & e5 g  R: l5 h4 |, D
Acid Value 酸值201-213
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Iodine Value 碘值1.0max.
/ v; B; H" G; a1 w0 ~: w9 ~& E soap-diy.com Titer(℃) 熔點54-56 soap-diy.com 7 i3 P! m. b7 P* c5 c
Colour(5 1/4"Lovibond) 顏色Yellow 2.0max. Red 0.5max. soap-diy.com # j! z9 \5 Q$ X% P  r soap-diy.com ( I/ L& w; ]  I
3 o' P/ r" g1 g2 K% V1 P8 h. z+ h7 p soap-diy.com Composition(in%) Approx: soap-diy.com 1 v$ `( |) A2 j) q" U' a
C12(Lauric)& Lower1max.
6 V6 K$ ?0 D: l' P+ X- j1 L9 O3 L soap-diy.com C14(Myristic)2max.
" J6 U! n9 Q: H) ?# A soap-diy.com C16(Palmitic)68max.
4 }- W5 e% J$ b' `- F soap-diy.com C18(Stearic)30min. soap-diy.com 8 c+ V' M2 ?5 K9 I. V/ H# T# u! x
C20(Arachidic)1max.
7 l, J3 Y& u) F! V, i+ m soap-diy.com C18'(Oleic)1max.
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! M+ ^( P  k4 I% k/ e* P0 T- q soap-diy.com Standard Packing: -- 25kgs net. in PP Woven with PE inner bag --600kgs net. in jumbo bag soap-diy.com 1 _3 E4 ~1 [: e3 |- B) b+ |
Test Method:AOCS
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硬脂酸(二壓級)
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STEARIC ACID
' i  z. S% j6 q8 g! E soap-diy.com Specs No.:703-28603 Product Code:SA1806 Product Form:Beads

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9 F% a1 Q( R8 L0 u3 b soap-diy.com Acid Value 酸值207-214 soap-diy.com % b3 o# P8 [9 v
Sapon Value 皂化值208-215
/ R' ~- b3 ]$ L) { soap-diy.com Iodine Value 碘值3.0max. soap-diy.com 6 ?) s! L5 r. b  W3 \( f. v
Titer(℃) 熔點53min.
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8 u+ }# y$ u5 ~- d& r soap-diy.com Composition(in%) Approx:
/ f, C; f* _5 ~ soap-diy.com C12(Lauric)& Lower1max.
8 n: P+ q/ U# e. w$ H soap-diy.com C14(Myristic)2max.
9 W$ v6 ]' j6 E4 c  H' ] soap-diy.com C16(Palmitic)70max.
" v. [7 Q* p' c$ w9 g$ M+ ?! ]/ C6 z soap-diy.com C18(Stearic)29min. soap-diy.com 2 U; \; q! c3 N! S  {( }0 K! ]
C20(Arachidic)1max.
5 m4 t- S# s: I) ]& p4 S soap-diy.com C18'(Oleic)3max. soap-diy.com - q6 E6 ^3 G+ _9 \0 B  [1 } soap-diy.com ( h* {: C! o/ p  r/ g" ?# q$ n
Standard Packing: -- 25kgs net. in PP Woven with PE inner bag -- 600kgs net. in jumbo bag
. ]5 F  {2 w% X2 S6 Z* B" m/ u soap-diy.com Test Method:AOCS
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硬脂酸(一壓級) soap-diy.com 1 F+ Q: L/ `& f- k) V
STEARIC ACID soap-diy.com ; h4 e1 x9 N& I6 H
Specs No.:703-28604 Product Code:SA1810 Product Form:Beads

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Property: soap-diy.com : }3 Z9 J( \4 ]  p! K1 p
Acid Value 酸值185min.
8 ?4 Y. Q: C. l0 R+ B+ v3 l soap-diy.com Sapon Value 皂化值186min. soap-diy.com # ]' g1 Z1 G9 e1 e
Iodine Value 碘值10max.
0 E# L" U. q, ]1 w soap-diy.com Titer(℃) 熔點50min.
. h2 I3 e7 h- z/ ^! a( m- P soap-diy.com Colour(Gardner) 顏色7Gardner max. soap-diy.com ' l, H" x/ M) A' c- T/ s+ _6 V+ h* L
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Composition(in%) Approx: soap-diy.com % E# q' F+ E: k5 M
C12(Lauric)& LowerVariable
. }0 Q9 y; ~- d3 ` soap-diy.com C14(Myristic)Variable
+ V5 v) x. w- m2 c; X soap-diy.com C16(Palmitic)Variable soap-diy.com   g" b7 q/ P" `9 L9 V
C18(Stearic)Variable soap-diy.com $ ]- g9 l/ O; p* i' G! {
C20(Arachidic)Variable
5 Y1 W7 e2 C5 h! T8 z; u soap-diy.com C18'(Oleic)Variable soap-diy.com - s9 `2 b. T1 M& T9 o+ \# j2 ^2 Z soap-diy.com 9 e8 x# L- j4 B& ?# B: ~$ v. v6 t
Standard Packing: -- 25kgs net. in PP Woven with PE inner bag -- 600kgs net. in jumbo bag soap-diy.com 9 A7 T5 ?6 i' f# J$ X  V
Test Method:AOCS
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$ `# T' L3 ~, Z# q& Q* d" [ soap-diy.com 硬脂酸(分餾三壓級) soap-diy.com 0 V! b( h) f5 _* g1 _  O3 F
STEARIC ACID
9 e$ Q2 W& N% T; P, V8 i soap-diy.com Specs No.:703-28605 Product Code:SA1840 Product Form:Beads

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# j3 y( O6 P: Y' D* Q soap-diy.com Acid Value 酸值200-212
4 v4 v- X, S3 W1 | soap-diy.com Sapon Value 皂化值201-213 soap-diy.com % S3 C4 [$ |! i) r# ]
Iodine Value 碘值1.0max. soap-diy.com + f/ Z4 g: k; R1 x
Titer(℃) 熔點55-57 soap-diy.com ( i1 W- p2 o$ O5 \7 ~8 C
Colour(5 1/4"Lovibond) 顏色Yellow 2.0max. Red 0.5max. soap-diy.com 0 i( V5 ?6 r% T soap-diy.com 8 R/ P! T2 B0 f: {* A) N! [
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Composition(in%) Approx: soap-diy.com   t* h: W) ]% [5 c7 i" r' W
C12(Lauric)& Lower1max. soap-diy.com - ~' V/ E; d# b
C14(Myristic)2max.
& w% g5 F* ?4 z, o+ t soap-diy.com C16(Palmitic)60max.
! c) \$ P) M* ]( S6 Z  q  c+ g soap-diy.com C18(Stearic)40min.
: h" u: X5 }8 A6 w soap-diy.com C20(Arachidic)1max.
, n8 |  m: O/ W0 N- @8 O8 V soap-diy.com C18'(Oleic)1max. soap-diy.com 5 h1 w  Z% k' I3 K, r0 D+ h0 T
% v' H+ J% \  P" }8 Y soap-diy.com Standard Packing: --25kgs net. in PP Woven with PE inner bag --600kgs net. in jumbo bag
# X4 Z& V6 F- G$ d$ k! J7 t* @& e soap-diy.com Test Method:AOCS
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2 b" J7 w, ]2 G4 x: ]5 T1 b7 ^$ |: u soap-diy.com 硬脂酸(分餾三壓級)
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STEARIC ACID soap-diy.com ( h' e% ~1 e2 T1 C, g# h, k& j+ {4 b4 s
Specs No.:703-28606 Product Code:SA1850 Product Form:Beads

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) F& x# p/ w, D) |# S# R  N soap-diy.com Acid Value 酸值198-210 soap-diy.com * e2 {9 V" N& X' v- f/ u: P4 |; P5 D
Sapon Value 皂化值199-211
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+ D) W& f! u& U  U/ c9 x4 N soap-diy.com Titer(℃) 熔點55-58
9 e2 d8 R3 M9 }# J soap-diy.com Colour(5 1/4"Lovibond) 顏色Yellow 2.0max. Red 0.5max.
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Composition(in%) Approx:
# E" P! o' i% b7 @; S# ` soap-diy.com C12(Lauric)& Lower1max.
- X. Y% K9 c: F  |4 k6 O, u) I9 p soap-diy.com C14(Myristic)2max.
* v: R, |2 F  Q5 w7 R soap-diy.com C16(Palmitic)53max. soap-diy.com ' m7 B0 P# T6 Z% w0 H6 q' h
C18(Stearic)47min.
! ^8 W* a0 J8 i: z/ m$ z2 ^9 i: h soap-diy.com C20(Arachidic)1max. soap-diy.com " \9 K, @" b1 c# t! A
C18'(Oleic)1max.
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1 r7 v- Q* I- L! s; _3 _! [ soap-diy.com Standard Packing: --25kgs net. in PP Woven with PE inner bag --600kgs net. in jumbo bag soap-diy.com 3 F9 d; D$ q' N, F% f% i) C/ G+ s  d& O
Test Method:AOCS soap-diy.com ; C! T& ~6 d5 j, g' f

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硬脂酸(分餾三壓級) soap-diy.com ; ]. |: z# T& H8 [) u
STEARIC ACID
* M" c, L) P& o/ L  M5 X& q soap-diy.com Specs No.:501-38608 Product Code:SAF1865 Product Form:Beads

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Property:
3 M7 b; K" w8 E% E- @ soap-diy.com Acid Value 酸值200-208
& M7 n2 p' J  D) z4 g" f: t' b soap-diy.com Sapon Value 皂化值201-209
+ b6 _4 ~4 a- X7 C- z8 C soap-diy.com Iodine Value 碘值1.0max. soap-diy.com + a5 J6 W) @% D9 ^- J
Titer(℃) 熔點57-61
4 |% p2 s' f8 ^8 G soap-diy.com Colour(5 1/4"Lovibond) 顏色Yellow 3.0max. Red 0.5max. soap-diy.com * \& h  q, F0 o' _/ J
; w* `% d1 k6 a0 S7 u) N. C soap-diy.com ; e3 r' M; @) m" j soap-diy.com Composition(in%) Approx: soap-diy.com 5 o' R0 ]- @1 R) r8 E
C14(Myristic)0-1 soap-diy.com $ C/ e* u: K: d# v" s& W
C16(Palmitic)30-38 soap-diy.com ; j" Y/ S7 X1 Y* ^; v' D( W% k
C18(Stearic)62-70
  g, U' o! `1 p* @$ k8 u7 d soap-diy.com C18'(Oleic)0-1
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Standard Packing: --20kgs net.in multiply kraft paper bags --25kgs net. in PP Woven with PE inner bag --600kgs net. in jumbo bag
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# ]8 C7 I  D6 M1 R% [ soap-diy.com Test Method:AOCS soap-diy.com ; h, f  z! k' w3 u! z4 e

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