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硬脂酸 stearic acid ( 十八酸, 己基癸醇硬脂酸酯)
6 R7 g/ A6 s0 ]+ e. X- k) P; _: j soap-diy.com soap-diy.com ( F; m: a1 E  D" @* C
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$ a4 s  k4 x9 l- R0 u- Y" G soap-diy.com 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,
5 `& P! D- X  G soap-diy.com 存在於許多植物性油脂和動物性油脂中。 soap-diy.com & u% U7 v* J4 F; s2 V. x


1 e- U; K! M# B5 K' ^ soap-diy.com 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%
/ V8 k& Y2 i$ G8 O soap-diy.com ,但可可脂中的含量高達34%。 soap-diy.com 7 T1 v% X# f! B6 P$ Z. W9 [% A" d: k

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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
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生產方式
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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 ; u  e6 A! l9 [+ }9 `& i4 |
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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 " R; T) n& ?/ t7 l- L' X


) {+ U4 J1 X* o; e" i5 J- y 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。
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硬脂酸添加比例為3%~5%。 soap-diy.com 7 A" s# e  T+ a& \$ H2 Y7 L

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建議計算氫氧化鈉時,計入硬脂酸皂化價
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9 ?* I' X4 \* ?  Y& D( C 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。 soap-diy.com ' s& a3 v; _/ d; ]" J* o

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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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硬脂酸在手工皂的功能是增加皂的硬度。
  w5 C* B% F2 @$ | 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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" C+ |3 }8 y, F5 n3 J soap-diy.com 硬脂酸(三壓級) soap-diy.com ! M3 x8 D7 t. a$ ^
STEARIC ACID


% A7 g- z5 i( k6 O7 ~" F soap-diy.com
3 [8 m' s* q2 R/ z& u; t& V5 o7 [ soap-diy.com Specs No.:703-28602 Product Code:SA1801 Product Form:Beads

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8 c6 @) h0 M  Q4 w9 B3 _# ^ soap-diy.com Property: soap-diy.com 2 ~& _# `. Q& e) d1 q
Acid Value 酸值201-213
, [( [: Y% i* y. @2 m soap-diy.com Sapon Value 皂化值202-214 soap-diy.com : n- P1 O) i# S8 g# O/ L
Iodine Value 碘值1.0max. soap-diy.com + e! t; l6 ^9 ~
Titer(℃) 熔點54-56 soap-diy.com ( B3 I. A7 ~. Y! M( ^% a% k
Colour(5 1/4"Lovibond) 顏色Yellow 2.0max. Red 0.5max.
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6 U- p1 D( N1 k* v& m soap-diy.com ' `$ Z7 ^  U" R3 K- h) E. U/ }; r soap-diy.com Composition(in%) Approx:
1 u1 E8 y& }8 S, ]: J soap-diy.com C12(Lauric)& Lower1max. soap-diy.com ! S. B( x% V& w6 b; H
C14(Myristic)2max.
/ o+ H0 e* m/ m; A soap-diy.com C16(Palmitic)68max. soap-diy.com # ]% ~5 c  u+ L% F  |
C18(Stearic)30min. soap-diy.com & J3 C! C% x! i
C20(Arachidic)1max. soap-diy.com 1 f8 B8 {8 {) y- {) t# V. o
C18'(Oleic)1max.
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. p! q0 k3 X, E/ N' a6 C soap-diy.com Standard Packing: -- 25kgs net. in PP Woven with PE inner bag --600kgs net. in jumbo bag soap-diy.com ; e) s: X$ p) c0 G. r* m
Test Method:AOCS soap-diy.com $ }% A% e9 \: k


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硬脂酸(二壓級) soap-diy.com ( z! \* a1 O5 v9 ^) y7 \
STEARIC ACID soap-diy.com + ]! Z; i2 a% h8 g
Specs No.:703-28603 Product Code:SA1806 Product Form:Beads

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Property:
3 p( A( C* s! ~ soap-diy.com Acid Value 酸值207-214
4 u* G) _! m7 K7 P5 p soap-diy.com Sapon Value 皂化值208-215 soap-diy.com ; r9 V# L' |6 v8 }
Iodine Value 碘值3.0max.
' }7 a! q* ?2 m' U4 Y soap-diy.com Titer(℃) 熔點53min.
' g3 v5 u2 @5 W& p1 I& J soap-diy.com Colour(5 1/4"Lovibond) 顏色Yellow 5.0max. Red 1.5max.
7 V) P; I6 E# V$ b& ]. ^ soap-diy.com soap-diy.com 5 s) C% n3 x8 b) M( r
# o3 ~8 Y1 F- k& Z, Q" H1 `: b8 } soap-diy.com Composition(in%) Approx:
. P# ]. o! A0 M* y% g! L soap-diy.com C12(Lauric)& Lower1max.
/ l  x" C- u5 \- o; R9 g soap-diy.com C14(Myristic)2max.
& T$ @9 j: R0 w; _4 L2 [ soap-diy.com C16(Palmitic)70max. soap-diy.com & I- J* a" w& g7 m+ }4 ^6 u
C18(Stearic)29min.
7 S$ r* s0 v( z9 B3 e6 a/ a- C soap-diy.com C20(Arachidic)1max. soap-diy.com - n6 s5 q! @) K  I' I( O! }, W
C18'(Oleic)3max. soap-diy.com - K% j7 l4 T. h! w& }" l+ w2 m
' h6 W' w& c1 b( P% |5 [% f$ B5 f" s soap-diy.com Standard Packing: -- 25kgs net. in PP Woven with PE inner bag -- 600kgs net. in jumbo bag
/ L% ?3 ~3 J+ _: S soap-diy.com Test Method:AOCS
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8 ]. n& ~4 D( G/ A  E) j! O soap-diy.com 硬脂酸(一壓級) soap-diy.com ( I7 m8 I+ V9 I" }) K' ?3 |4 o! H
STEARIC ACID soap-diy.com + I" T8 Y: [2 k! q
Specs No.:703-28604 Product Code:SA1810 Product Form:Beads

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Acid Value 酸值185min.
( N$ @4 G; r# O( E  U. w/ ~$ I" R" Q soap-diy.com Sapon Value 皂化值186min. soap-diy.com ) A- M! B) s- ^- u8 b) o% Q
Iodine Value 碘值10max. soap-diy.com   Y) d  }$ {( w; b4 e
Titer(℃) 熔點50min.
! T6 c9 U% e/ W& J1 C1 |# h1 O, R soap-diy.com Colour(Gardner) 顏色7Gardner max. soap-diy.com ' _; _- o9 s3 H  l soap-diy.com   m( |/ k5 |" e" f( K* M
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Composition(in%) Approx:
& e2 |9 h- a) i. |9 l soap-diy.com C12(Lauric)& LowerVariable
3 v# R1 K' H4 W  S& Z+ o soap-diy.com C14(Myristic)Variable soap-diy.com * x; m0 K, u$ N) U* A$ G
C16(Palmitic)Variable soap-diy.com 5 g# T4 ~2 B9 g: r
C18(Stearic)Variable
( r/ B- J0 D# D5 _" A* l. ^ soap-diy.com C20(Arachidic)Variable soap-diy.com * k1 S3 G& S( Z
C18'(Oleic)Variable soap-diy.com * i# b/ X+ p& q2 P+ z  M soap-diy.com : U8 n+ k$ i- S- K. p' S2 S
Standard Packing: -- 25kgs net. in PP Woven with PE inner bag -- 600kgs net. in jumbo bag soap-diy.com ( X2 h8 Y7 r; V6 H1 K6 w" ^
Test Method:AOCS
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0 {# @- P' t$ @" Z! [0 k soap-diy.com 硬脂酸(分餾三壓級) soap-diy.com * L* @  J/ I3 h5 Y" ?5 F7 u& \& m
STEARIC ACID
- K7 T& n5 L# G. v9 T: _ soap-diy.com Specs No.:703-28605 Product Code:SA1840 Product Form:Beads

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7 y% [$ v6 S* c, t5 F, \ soap-diy.com Property: soap-diy.com / j+ h  K5 {# C) d5 s* k
Acid Value 酸值200-212 soap-diy.com 0 C+ U) R0 S& f9 E7 _6 a
Sapon Value 皂化值201-213 soap-diy.com   h, [; c0 ]9 ^: l5 \7 y% ]
Iodine Value 碘值1.0max. soap-diy.com - o" `# l" t/ Z1 V! J
Titer(℃) 熔點55-57 soap-diy.com ) J( }% `5 j7 v  [
Colour(5 1/4"Lovibond) 顏色Yellow 2.0max. Red 0.5max. soap-diy.com : _6 E2 [9 N/ |0 ]7 a( \* f" M soap-diy.com " P' L9 E/ Q# \/ }: I
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Composition(in%) Approx: soap-diy.com 8 p; x3 l: Q0 }: h: M- l
C12(Lauric)& Lower1max.
! U9 Z  j6 O! t$ D soap-diy.com C14(Myristic)2max.
/ Q- d' ]! {) v" e soap-diy.com C16(Palmitic)60max.
6 |6 {: c# ~5 d0 b, \( S' R2 o soap-diy.com C18(Stearic)40min.
9 \! m* \% I1 Z7 r: } soap-diy.com C20(Arachidic)1max.
7 Y" {' i2 c7 ~$ ^% p, c4 R soap-diy.com C18'(Oleic)1max.
  U% w0 I$ I- W- l& f! s+ I soap-diy.com soap-diy.com / Z: s* H' x$ Z9 U5 ]2 O
Standard Packing: --25kgs net. in PP Woven with PE inner bag --600kgs net. in jumbo bag
) e1 j4 Y, q* H* a soap-diy.com Test Method:AOCS
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硬脂酸(分餾三壓級)
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STEARIC ACID
8 k% P! ^) u, z' B, U soap-diy.com Specs No.:703-28606 Product Code:SA1850 Product Form:Beads

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Property: soap-diy.com 5 m1 ]% _2 L# L9 {9 A% j* U
Acid Value 酸值198-210
' U+ M) Q- \6 C8 o6 c, g soap-diy.com Sapon Value 皂化值199-211 soap-diy.com % p: i& ?( X& x# M9 V6 n8 P; a* x
Iodine Value 碘值1.0max. soap-diy.com 5 e5 h% s" C7 e! g3 w3 U* E
Titer(℃) 熔點55-58 soap-diy.com $ ^' S+ A& t4 L0 |
Colour(5 1/4"Lovibond) 顏色Yellow 2.0max. Red 0.5max. soap-diy.com 7 m. O9 I) G* D. {* v& z
8 E! a+ M; r# W" N3 y$ G' Z+ @ soap-diy.com soap-diy.com % }# z) `6 a- _7 e; e
Composition(in%) Approx:
  O0 ], O4 Y; ~) |) o" w: C soap-diy.com C12(Lauric)& Lower1max.
7 V; }. k+ O" \# R+ }2 D soap-diy.com C14(Myristic)2max.
4 T% u; a/ T- b& G soap-diy.com C16(Palmitic)53max. soap-diy.com 6 \) f7 T" `4 H1 C) }* J
C18(Stearic)47min. soap-diy.com ( d. c. Q& a& D, U3 l
C20(Arachidic)1max.
- b( ]: X/ m: Y6 {" R% ` soap-diy.com C18'(Oleic)1max.
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6 p$ a) H1 p: ?+ z6 R7 y soap-diy.com Standard Packing: --25kgs net. in PP Woven with PE inner bag --600kgs net. in jumbo bag soap-diy.com 9 W& ?) i4 {  s( c- g
Test Method:AOCS
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* \% y8 g" u- h soap-diy.com 硬脂酸(分餾三壓級) soap-diy.com 7 o3 z7 [9 |! q5 d" t/ }/ V
STEARIC ACID
3 R. f; k9 N% F) M4 I( w soap-diy.com Specs No.:501-38608 Product Code:SAF1865 Product Form:Beads

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Acid Value 酸值200-208
% s8 f3 P/ ?* x1 A% e! ~% G soap-diy.com Sapon Value 皂化值201-209 soap-diy.com 8 q' a" v4 t) q
Iodine Value 碘值1.0max. soap-diy.com " D, u  e# Y: E$ s' k; Y
Titer(℃) 熔點57-61 soap-diy.com - U- u! F! A  F+ e* `# c5 U
Colour(5 1/4"Lovibond) 顏色Yellow 3.0max. Red 0.5max. soap-diy.com 5 K; g. n' L! V+ j$ F
0 W$ k: w8 W! ~ soap-diy.com 9 Q' I, S7 @5 f2 i. M6 i3 ? soap-diy.com Composition(in%) Approx: soap-diy.com : F4 ]3 `( T1 W2 p
C14(Myristic)0-1 soap-diy.com * v8 T- ]* x" Z; l
C16(Palmitic)30-38
# \. m7 A  Q* [8 F/ n5 z9 I# [ soap-diy.com C18(Stearic)62-70 soap-diy.com : O, o' I5 A* J) Y. B# U8 I  A
C18'(Oleic)0-1
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( h' L5 y$ l8 x soap-diy.com Standard Packing: --20kgs net.in multiply kraft paper bags --25kgs net. in PP Woven with PE inner bag --600kgs net. in jumbo bag soap-diy.com - z1 Z' N% O( V# ?) t
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Test Method:AOCS
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